EonStor GS 3024 - NAS Infortrend - Free user manual and instructions

Product Type	Network Attached Storage (NAS)
Model	EonStor GS 3024
Form Factor	2U rackmount
Drive Bays	24, supports 2.5" or 3.5" SAS/SATA HDDs/SSDs
RAID Levels	0, 1, 3, 5, 6, 10, 30, 50, 60, and non-RAID spanning
Cache Memory	Pre-installed DRAM with ECC, two DIMM slots
Cache Backup	Cache Backup Module (CBM) with super capacitor and flash backup
Host Interfaces	8/16Gb Fibre Channel, 1/10Gb Ethernet (iSCSI), 12Gb SAS (optional host boards)
Expansion Ports	12Gb SAS (for JBOD connection)
Power Supply	Dual redundant, hot-swappable; 530W, 100-240V AC auto-switching
Dimensions (HxWxD)	88 mm x 446 mm x 514 mm (3.46" x 17.56" x 20.24")
Weight	Approximately 20 kg (44 lbs) without drives
Operating Temperature	0°C to 35°C (with CBM); 0°C to 40°C (without CBM)
Cooling	Dual built-in cooling modules in PSUs, variable fan speed
Management	EonOne GUI, firmware via RS-232 or Telnet
Hot-Swap Components	Hard drives, PSUs, cooling modules, controllers (dual only)
Safety Certifications	UL, CE, FCC, BSMI, RoHS

Frequently Asked Questions - EonStor GS 3024 Infortrend

How do I install hard drives in the EonStor GS 3024?

First, mount the enclosure in a rack. Then, insert each hard drive into a drive tray, secure with screws, and slide the tray into an empty bay until it clicks. Ensure all bays are populated to maintain proper airflow.

What RAID levels are supported?

It supports RAID 0, 1, 3, 5, 6, 10, 30, 50, 60, and non-RAID spanning. You can configure them via the firmware or EonOne management software.

Can I upgrade from a single controller to dual controllers?

Yes, if your model has an 'S' designation. You can add a second controller module and perform a firmware upgrade. For details, contact your vendor.

How does the Cache Backup Module (CBM) work?

The CBM consists of a super capacitor and a flash backup module. In a power outage, the super capacitor provides enough energy to flush cached data to the flash module, preventing data loss.

What should I do if a power supply fails?

Keep the failed PSU in place until you have a replacement. Unplug the power cord, loosen the retention screw, pull the handle to disconnect, then slide out the unit. Insert the new PSU and fasten the screw.

How do I connect JBOD expansion units?

Use SAS cables to connect the expansion ports on the RAID controller to the JBOD. For dual-controller systems, use both SAS ports for redundancy. Set unique enclosure IDs using the rotary switch on each JBOD.

What is the maximum number of LUNs supported?

Up to 32 LUNs per host ID, with a total of 1024 LUNs across all host channels.

How do I monitor system status?

You can use the front LED panel, audible alarms, firmware utilities via serial or Telnet, or the EonOne GUI. The LEDs indicate power, temperature, fan, and system health.

Can I use SATA drives in a dual-controller system?

Yes, but you need a MUX kit for each SATA drive to enable dual-port functionality. Contact your vendor for compatible MUX boards.

What are the environmental requirements?

Operating temperature: 0-35°C with CBM, 0-40°C without. Humidity: 5-95% non-condensing. Allow at least 18-20 cm clearance at rear for airflow.

USER MANUAL EonStor GS 3024 Infortrend

Infortrend EonStor GS 3000 Series Hardware Manual

Version 1.0

Legal Information

All Infortrend products, including the product customers have purchased from Infortrend, shall be subject to the latest Standard Warranty Policy available on the Infortrend website: http://www.infortrend.com/global/Support/Warranty

Infortrend may from time to time modify, update or upgrade the software, firmware or any accompanying user documentation without any prior notice. Infortrend will provide access to these new software, firmware or documentation releases from certain download sections of our website or through our service partners. Customer shall be responsible for maintaining updated version of the software, firmware or other documentation by downloading or obtaining from Infortrend, and installing designated updated code, including but not limited to firmware, microcode, basic input/out system code, utility programs, device drivers, and diagnostics delivered with Infortrend product.

Before installing any software, applications or components provided by a third party, customer should ensure that they are compatible and interoperable with Infortrend product by checking in advance with Infortrend. Customer is solely responsible for ensuring the compatibility and interoperability of the third party's products with Infortrend product. Customer is further solely responsible for ensuring its systems, software, and data are adequately backed up as a precaution against possible failures, alternation, or loss.

For any questions of hardware/ software compatibility, and the update/ upgrade code, customer should contact Infortrend sales representative or technical support for assistance.

To the extent permitted by applicable laws, Infortrend shall NOT be responsible for any interoperability or compatibility issues that may arise when (1) products, software, or options not certified and supported by Infortrend are used; (2) configurations not certified and supported by Infortrend are used; (3) parts intended for one system are installed in another system of different make or model.

Contact Information

Customer Support

Contact your system vendor or visit the following support site.

- EonStor GS Support

Headquarters

(Taiwan)

Infortrend Technology, Inc.

8F, No. 102, Sec. 3, Jhongshan Rd., Jhonghe Dist., New Taipei City 235, Taiwan

Tel: [phone] Fax: [phone] Email, Technical Support, Website

Americas

Infortrend Corporation

435 Lakeside Dr. Sunnyvale, CA. 94085, USA

Tel: [phone] Fax: [phone] Email, Technical Support, Website

China

Infortrend Technology, Ltd. / Infortrend 北京分公司 Map

Room 403, Block D, Ocean International Center, Dis. Chaoyang, Beijing, China

Tel: [phone] Fax: [phone] Email, Technical Support, Website

Europe (EMEA)

Infortrend Europe LTD.

5 Ringway Centre, Edison Road, Basingstoke, Hampshire, RG21 6YH, UK

Tel: [phone] Fax: [phone] Email, Technical Support, Website

Japan

Infortrend Japan, Inc.

Tel: [phone] Fax: [phone] Email, Technical Support, Website

Copyright Notice

All rights reserved. This publication may not be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written consent of Infortrend Technology, Inc.

Disclaimer

Infortrend Technology makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Infortrend Technology reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation to notify any person of such revisions or changes. Product specifications are also subject to change without prior notice.

Trademarks

Infortrend, the Infortrend logo, EonOne, SANWatch, ESVA, EonStor DS, EonStor GS, EonNAS, and EonPath are registered trademarks of Infortrend Technology, Inc. Other names prefixed with "IFT" and "ES" are trademarks of Infortrend Technology, Inc.

• Windows is a registered trademark of Microsoft Corporation.
  • Mac OS X is a registered trademark of Apple Computer, Inc.
  • Linux is a trademark of Linus Torvalds.

All other names, brands, products or services are trademarks or registered trademarks of their respective owners.

Safety Precautions

Read these instructions carefully before you install, operate, or transport the EonStor GS RAID system and JBODs.

Installation and Operation

- Install the rack cabinet and the associated equipment at a site where the ambient temperature (special room cooling equipment may be required) stays lower than:

a. 35^ if your system have a BBU (all Dual-Controller systems come with BBU by default)

b. 40^ if your system does not have a BBU

• Install the power source socket outlet near the enclosure where it is easily accessible and ground the rack cabinet.
• Secure airflow clearance inside and around the rack cabinet.

- Secure an 18 to 20cm clearance on the rear side.

• Do not cover the enclosure openings.
• Route the cables inside the rack cabinet.

• Do not leave drive bays empty as it will affect airflow efficiency.

• Secure each enclosure module using its retaining screws.

• Place power cords and other cables away from foot traffic. Do not place items on top of power cords and make sure they do not rest against data cables.
  • Install all modules to the enclosure before powering-on systems.
• Ensure that the correct power range is being used before powering-on.
• DO NOT remove covers or replaceable modules if they are not faulty.
• If the system is not going to be used for a long period of time, disconnect it from the power mains to avoid transient over-voltage.
• For power source redundancy, please make sure that the two PSUs are plugged into two different power sources (i.e. Different circuit breakers).

Service and Maintenance

- Keep the faulty module in place until you have a replacement unit; an empty module greatly affects the airflow efficiency within the enclosure.

- During service operation, place the enclosure on soft and clean surface to prevent exterior damage. Do not place tools or other items on top.

- When transporting the enclosure, repackage all disk drives separately in the original package foam blocks. Replaceable modules can stay in the enclosure if you are using the original package; if not, repackage them separately as well.

- Disconnect the power cords before servicing or cleaning the enclosure.

- Use a slightly moistened paper sheet or cloth for cleaning. Avoid using liquid or sprayed detergent.

- When replacing components, insert them as gently as possible while assuring full engagement. Vibration and shock can easily damage hard drives.

- Only qualified service personnel should open the enclosure.

- Contact service personnel if any of the following situations occurs:

• The power cord or plug is damaged.
• The enclosure has been exposed to moisture.
• The system has not been working properly.
• The enclosure was dropped against a hard surface.
• The enclosure shows obvious signs of breakage.

- To move the enclosure, more than one person might be necessary due to its weight. Drives should be removed from the enclosure beforehand.

Important Notice

The use of Infortrend certified components is strongly recommended to ensure compatibility, quality and normal operation with your Infortrend products. Please contact your distributor for a list of Infortrend certified components (e.g. SFP, SFP+, HBA card, iSCSI cable, FC cable, memory module, etc.).

ESD Precautions

• Handle the modules by their retention screws, ejector levers, or the module's metal frame/faceplate only. Avoid touching the PCB boards or connector pins.
• Use a grounded wrist strap and an anti-static work pad to discharge static electricity when installing or operating the enclosure.
• Avoid dust, debris, carpets, plastic, vinyl, and Styrofoam in your work area.
• Do not remove any module or component from its anti-static bag before installation takes place.
• Drives must not be stacked on top of each other without their protective drive trays. Even when drives are fixed in the drive trays, contacting the exposed PCB or rear-side interface may damage the drives.

About This Manual

The manual introduces hardware components of EonStor GS RAID and JBOD systems. It also describes how to install, monitor, and maintain them.

For non-serviceable components, please contact our support sites.

Firmware operation: Consult the Firmware User Manual on the CD-ROM.

EonOne software: Consult the EonOne User Manual on the CD-ROM.

Revision History

Version	Date	Description
1.0	Feb. 2016	Initial release

Table Of Contents

Legal Information 2

Contact Information.... 3

Copyright Notice.... 4

Safety Precautions .... 5

Installation and Operation.... 5

Service and Maintenance.... 6

Important Notice 6

ESD Precautions....7

About This Manual....8

Revision History 8

Table Of Contents 9

Introduction 14

Product Overview....14

Model Naming Conventions.... 14

Model Variations.... 15

Major Components 16

RAID Controller and Interface.... 16

JBOD Controller and Interface.... 16

Power supply unit with built-in cooling module.... 17

The Rear Panel.... 18

Dual-Controller Models 18

Single-Controller Models 19

Upgrading Single-Controller to Dual-Controller System 19

Connection between RAID and JBOD 19

Chassis.... 20

Front Panel....20

Rear Panel 22

Internal Backplane....24

Front Panel Components 25

LED Panel 25

Drive Tray Bezel 26

Rear Panel Components 27

Controller Module of RAID Models.... 27

Super Capacitor & Flash Backup Module 29

PSU & Cooling Module 30

System Monitoring Features.... 31

Expansion Enclosure Support.... 31

I^2C bus 32

Firmware (FW) and EonOne 32

Audible Alarms.... 32

Hot-swapping.... 33

Hardware Installation 34

Installation Prerequisites .... 34

Installation Procedures Overview.... 35

Unpacking the System 36

Box contents.... 36

Preinstalled Components.... 36

Components to be Installed 36

Installing Hard Drives.... 37

Hard Drive Installation Prerequisites.... 37

SAS Interface 39

Hard Drive Designation.... 40

Installing the Hard Drive into Drive Tray.... 41

Installing the Hard Drive Tray into the Enclosure 42

Installing Host Boards.... 43

Installing the Controller 44

System Connection 45

General Considerations on Making Connections.... 45

Host-Side Topologies.... 46

Host-Side Parameters 46

Maximum Concurrent Host LUN Connection ("Nexus" in SCSI)...... 47

Maximum Queued I/O Count 48

Fibre-Host Connections (including 10Gb FCOE iSCSI) 49

Fibre-Host Topologies.... 51

Fibre Cabling 52

Simple End-to-End Connection.... 53

DAS (Direct-Attached) Connection 54

Switched Fabric Connection (Dual-Controller) 56

Switched Fabric Connection (Single-Controller).... 58

SAS-Host RAID Connections....60

DAS (Direct-Attached Storage) Connection with Redundant Host Path ..... 61

DAS (Direct-Attached Storage) Connection to Two Servers 63

iSCSI-Host RAID Connections....64

Network & Host Connection Topologies 65

High Availability IP SAN with Redundant RAID Controller 66

Single-Controller with Fault-Tolerant Path.... 68

High Availability IP SAN (Recommended Cabling Method for Remote Replication) 69

High Availability IP SAN with Port Trunk (Remote Replication Enabled) .... 71

Hybrid Host Connections....73

Single Hybrid Unit Connected to FC/iSCSI Hosts 73

Utilizing Hybrid iSCSI ports for Data Replication.... 74

JBOD Connections....75

JBOD SAS Expansion Configuration 75

Configuration Rules....76

Dual-Controller Expansion Connection 78

Single-Controller Expansion Connections.... 79

Management Console Connections 80

Connecting RAID system to external consoles 80

Power Connections 81

Checklist....81

Power Cords Connections 82

Power On Procedure 82

Power On Status Check.... 83

Power Off Procedure 84

System Monitoring 85

Monitoring Features 85

LED Panel 87

Drive Tray LED 89

Controller LED 90

Controller LED for RAID Models 90

Controller LED for 12 Gb/s SAS JBOD Models....92

iSCSI / Ethernet Management Port LEDs 93

10 Gb iSCSI Host Port LEDs (Fibre)....94

10 Gb iSCSI Host Port LEDs (RJ45)....94

8 Gb Fibre-Host Port LEDs 95

16 Gb Fibre Channel Host Port LEDs 96

6G SAS-Host Port LEDs....97

12G SAS-Host Port LEDs....98

PSU & Built-in Cooling Module LEDs....99

Alarms and I2C Bus.... 100

Audible Alarms....100

I^2C 100

Restoring Default System Settings 101

Restoring Default Settings.... 101

System Maintenance....103

Replacing the Controller Module(s): Single / Dual / Simultaneous Upgrade.... 104

Replacing the Host Board.... 107

Replacing the Memory Module on RAID Systems.... 108

Replacing the CBM for RAID Models....110

Replacing the Flash Backup Module....110

Super Capacitor Fault Conditions and Precautions....111

Replacing Flash Backup Module (coupled with SuperCap)....112

Replacing the Power Supply Module / Cooling Module....113

Detecting a Failed PSU 113

Replacing Power Supply Unit 114

Replacing a Hard Drive ....116

Appendix 118

Technical Specifications....118

Host Board Interface....118

RAID Configurations for RAID Models....119

Fault Tolerance for RAID models 120

Power Supply 121

Dimensions....122

Environment 123

Certifications.... 124

Summary 124

Slide Rail Kit Installation Guide.... 125

Slide Rail Kits.... 125

Enclosure Installation Prerequisites 125

Unpacking the System 126

Component Installation Procedure.... 126

Tools Required.... 126

Rack Ear Mount Kit.... 127

Kit Contents....127

Installation Procedure.... 128

Slide Rail Kit.... 130

Kit Contents....130

Once Mounted.... 134

Introduction

Product Overview

This manual introduces EonStor GS 3000 systems that support 3Gbps, 6Gbps and 12Gbps SAS and Near Line SAS, SATA hard drives and SSDs. The enclosure is designed to utilize 2.5" or 3.5" hard drives. Drive capacity can be expanded by attaching expansion hard drive enclosures (JBODs).

Model Naming Conventions

The naming rules for RAID and JBOD models are explained in the example below:

$$ \text { RAID: GS3024RCB } \rightarrow \text { GS } ^ {(A)} + 3 0 ^ {(B)} + 2 4 ^ {(C)} + R ^ {(D)} + C ^ {(E)} + B ^ {(F)} $$

Designation	Description
(A)	GS = EonStor GS systemsJB = JBOD systems
(B)	30 where 0 indicates first generation, 1 indicates second generation and so on
(C)	12 = 2U system, 12 hard drives capable16 = 3U system, 16 hard drives capable24 = 2U system, 24 hard drives capable
(D)	R = redundant (dual) controllersS = single and upgradeable to Dual-Controllers
(E)	C = CBM (Cache Backup Module) with super capacitor and flash module
(F)	B = 2.5" hard drive form factor system3.5" hard drive form factor system if not mentioned

Architectural floor plan of a multi-level building with horizontal and vertical structural lines (no text or labels)

EonStor GS 3012

Technical line drawing of a multi-chamber storage unit rack (no text or symbols)

EonStor GS 3016

Technical line drawing of a multi-chamber industrial control unit (no text or symbols)

EonStor GS 3024B

Model Variations

Comprised of RAID and JBOD models, RAID systems store hard drives and control the entire storage array while JBOD systems connect to a master RAID system and allow storage capacity expansion by adding more hard drives. Hard drive limitation(s) may vary model to model.

Major Components

NOTE

Upon receiving your system, check the package contents against the included Unpacking List. If module(s) are missing, please contact your system vendor immediately.

RAID Controller and Interface

Each RAID controller comes with pre-installed DIMM module(s).

The traditional battery backup is replaced by an innovative Cache Backup Module methodology (CBM) which consists of a super capacitor and a flash backup module (FBM). Cached data is quickly distributed to a flash backup module for permanent storage with the support of the super capacitor in the event of a power outage. The advantage of a super capacitor is its very fast charging time. The super capacitor is charged within a few minutes and available to distribute power to the controller. So cached data can be saved immediately and permanently in flash backup module (FBM).

The embedded firmware features intelligent algorithms, such as power-saving modes, variable fan speeds, and exiled drive handling, making this model a greener choice.

JBOD Controller and Interface

The enclosure is managed by expander controllers that distribute data flow to individual disk drives and report operating status through a proprietary enclosure service via in-band protocols. The enclosure, along with other JBODs, connects to a RAID system and serves as a building block of a scalable configuration.

In terms of supported protocols, the firmware supports communications with enclosure devices, SAS/SATA disk drives and as RAID system featuring SAS expansion ports.

In terms of physical connection, the SAS interface provides ease of cabling through Mini-SAS connectors. With a backplane adapting SAS or SATA drives, the system supports enterprise-class SAS, Near-line SAS, cost-effective SATA-II or SATA-III hard drives or SSDs, and is ideal for adding large capacity to a storage pool.

Power supply unit with built-in cooling module

Cooling module is built into the power supply unit (PSU) to protect the system from overheating. The two hot-swappable PSUs provide constant power to the system. The modular nature of the system and the easy accessibility to all major components ensure ease of maintenance.

The Rear Panel

Dual-Controller Models

Dual-Controller systems are indicated by an “R” in their model number (please refer to Model Naming Conventions). Controller A is located on top and controller B at the bottom for all models. If one controller fails, the second controller module will take over in a manner that is transparent to application servers.

Back view diagram of a server rack with labeled sections A and B (no text or symbols beyond labels)

EonStor GS 3012R / 3024RB

A B

EonStor GS 3016R

The top controller (Controller A) is the primary controller. The bottom controller (Controller B) is the secondary (= redundant) controller which is idle during normal operation and takes over the management role when Controller A cannot function properly due to hardware error, controller module removal, etc.

If the failed Controller A restarts or a replacement is installed, Controller A will temporarily assume the role of the secondary controller.

When the RAID system is rebooted, all system configurations will revert back to the default state and Controller B returns the primary role to Controller A.

Single-Controller Models

Single-Controller models are designated by a "G" or "S" in their model number. The second controller slot is filled with a dummy cage.

Back view diagram of a server rack with multiple fans and drive bays (no text or labels visible)

EonStor GS 3012 / 3024B

Top-down schematic of a computer drive bay showing front, rear, and internal components (no text or labels)

EonStor GS 3016

Upgrading Single-Controller to Dual-Controller System

If the model name of a Single-Controller RAID/JBOD is designated with the letter "S", it can be upgraded into a Dual-Controller configuration by adding another controller module and firmware upgrade (see software manual). If the model name is designated with a "G", it is not upgradeable to a Dual-Controller configuration.

For details, please contact your vendor for details.

Connection between RAID and JBOD

The following rule applies when connecting RAID and JBOD(s):

• Dual-Controller RAID system connects to Dual-Controller JBOD.
• Single-Controller RAID connects to Single-Controller JBOD.

Chassis

The chassis is rugged constructed and divided into front and rear sections. The chassis is designed to be installed into a rack or cabinet.

Front Panel

2 3 4 6 7 1 5

EonStor GS 3012

2 3 4 5 6 7 1

EonStor GS 3016

2 3 4 5 6 7 1

EonStor GS 3024B

• Hard drive trays (1): Each drive tray is hot-swappable and holds a 2.5 / 3.5-inch hard drive. 4U60 systems have 3 drawers, holding 20 hard drives in each drawer
• LED Panel (2): The panel has Service / Power / Cooling Fan / Thermal / System LEDs.
• Mute button / service LED (3): The mute button is to mute an alarm when sound or to indicate to the administrator the system requires service.
• Rotary ID switch in JBOD systems (4): The rotary ID switch is for users to set a unique ID to each JBOD when connected in a multi-array environment.
• Handles (5): There are handles on both sides of the enclosure for users to pull / push the enclosure out and into the cabinet when the enclosure is installed on a slide rail rackmount system.
• Rackmount holes (6): There are two rackmount holes (one on each side of the enclosure) for users to secure the enclosure onto the cabinet.
• Hard drive status LED (7): There is a set of hard drive status LEDs right hand side or below of the hard drive tray to indicate operation status.

Rear Panel

#	Description	#	Description
1	Controller A	3	Power supply + cooling module
2	Controller B

Diagram of a server rack with labeled components including ports, connectors, and ventilation slots

EonStor GS 3012 / 3024B

Diagram of a server rack with labeled components including ports, connectors, and ventilation slots

EonStor GS 3016

- Controllers (1) / (2): Each RAID controller module contains a main circuit board and a pre-installed DIMM module. For Single-Controllers, a dummy cage will be placed at the controller (2) position. The host port configurations will vary. For details, see Rear Panel Components.

- PSU (3): The hot-swappable PSUs provide power to the system.

There is a cooling module within each PSU. Please refer to your specific system for details shown in the later sections of this chapter.

WARNING

Do NOT remove the dummy cage for the Single-Controller model. Doing so will disrupt the internal airflow.

Internal Backplane

An integrated backplane separates the front and rear sections of the chassis. This circuit board provides logic level signals and low voltage power paths. Thermal sensors and I ^2 C devices are embedded to detect system temperatures and PSU/cooling module operating status. This board contains no user-serviceable components.

WARNING

Accessing the backplane board may lead to fatal damage of the system. Also, physical contact with the backplane board may cause electrical hazards.

Front Panel Components

LED Panel

1 2 3 4 5 6 Route / Service

ES GS 3000 LED panel

The LED panel can be located on the chassis ear. The LED panel contains Service LED (1), a power supply status LED (2), cooling module status LED (3), temperature sensor status LED (4), System fault LED (5), Mute Service button (6), rotary ID switch (only JBOD) (7). For details, please refer to LED Panel.

WARNING

If critical faults are indicated on the LED panel, verify the cause of the problem as soon as possible and contact your system vendor and arrange for a replacement module.

Drive Tray Bezel

1 2 3

3.5 inch

1 2 3

2.5 inch

The drive tray is designed to accommodate separately purchased SAS or SATA interface hard disk drives. There is a release button (1) that has to be used to retrieve disk drives from the chassis. To the right of the bezel plate, there is a drive busy LED (2) and a power status LED (3).

NOTE

Please note: The status LEDs of a 2.5 inch HDD tray are on the front panel of an SFF (Small Form Factor) enclosure itself, below each tray or top right (3U / 36-bay).

WARNING

Be careful not to warp, twist, or contort the drive tray in any way (e.g., by dropping it or resting heavy objects on it). If the drive bay structure is deformed or altered, the drive trays may not fit into the drive bay.

Rear Panel Components

Controller Module of RAID Models

Designation	Description	Designation	Description
1	Host ports	6	Controller status LED
2	Super capacitor	7	Ethernet 1G management port
3	SAS 12G expansion port	8	Serial port (RS-232)
4	Restore default button	9	USB port
5	Restore default LED

2 1 9 8 56 473 11

The controller also features a Cache Backup Module (CBM), consisting of a super capacitor and a Flash Backup Module (FBM). The type of CBM module may vary or maybe optional on some models.

The controller module contains no user-serviceable components except when users are installing/ upgrading the cache memory or installing/replacing a CBM, the controller module should never be removed or opened.

NOTE

The management port supports only 100Mbs and 1000Mbs (1Gbs) speeds.

Host boards are optional add-on components! There are two host board slots, if you are installing a host board for the first time, please install it to the slot on the left (next to SAS exp. Ports).

WARNING

The only time you should remove the controller is to install/ replace the CBM or a failed controller. The RAID controller is built of sensitive components and unnecessary tampering may damage the controller.

Super Capacitor & Flash Backup Module

The super capacitor (1) and flash backup module (2) can be located inside the controller and serves as a Cache Backup Module (CBM) described in the previous section. With the super capacitor, the cached data can be stored permanently in the flash backup module, in case of a power outage.

Technical diagram of an electronic device with numbered annotations indicating components and functions.

NOTE

The super capacitor is only charged partially when shipped. Therefore, after powering on the system, the super capacitor will start charging to its full capacity. The super capacitor will be charged within a few minutes. If the super capacitor is not charged, there may be a problem with the super capacitor and you should contact your system vendor immediately. You can also check the status of the super capacitor module via EonOne or the firmware (please refer to respective manuals).

PSU & Cooling Module

The two redundant, hot-swappable PSUs have a power socket (1), power switch (2), PSU status LED (3), cooling module (4), retention screw (5) and an extraction handle (6).

Technical diagram of a computer drive with numbered components for identification

The cooling modules can operate at three rotation speed settings. Under normal operating conditions, the cooling fans run at the low speed. Under the following conditions, cooling fans raise their rotation speed to increase the airflow:

• Component failure: if a cooling module, PSU, or a temperature sensor fails.
• Elevated temperature: if the temperature breaches the upper threshold set for any of the interior temperature sensors.
• During the system initialization stage, the cooling fans operate at high speed and return to low speed once the initialization process has completed and no erroneous condition detected.

NOTE

There are two upper temperature thresholds: one for event notification and the other for triggering higher fan rotation speed. The preset-value for event notification can be changed using the firmware-embedded configuration utility, while the fan speed trigger cannot be changed. Refer to the Firmware Operation Manual for details.

System Monitoring Features

There are a number of monitoring approaches that provide the operating status of individual components.

Expansion Enclosure Support

Monitoring:

A managing RAID system is aware of the status of JBOD components including those of:

• Expander controller (presence, voltage and thermal readings)
• PSU
• Cooling module
  • Enclosure thermal sensor
  • Service (the Service signal to specify a specific enclosure)
• Disk drives

JBOD Identifier:

The managing RAID system will sound the alarm and deliver warning messages if there is a conflict between JBOD IDs.

If more than one JBOD is connected to the managing RAID system, each JBOD needs a unique enclosure ID set using the rotary switch on the LED panel. For example, the firmware automatically disconnects the second JBOD if it is connected online and comes with an ID identical to that of the first JBOD.

NOTE

The IDs for JBODs are #1 to #15. For details, please refer to JBOD connections.

Cooling Module Speed Adjustment:

If any of the detected temperature readings breaches the temperature threshold, the firmware running on the managing RAID system automatically raises the rotation speed of all cooling fans.

JBOD Enclosure Status Monitoring:

A RAID system, when connected with expansion JBODs, acquires the component status within other enclosures via a proprietary enclosure monitoring service using the in-band connectivity. No additional management connection is required.

I²C bus

The detection circuitry and temperature sensors are interfaced through a non-user-serviceable I²C bus. When JBODs are attached to RAID controllers, JBOD component status is reported through in-band protocols over expansion links that is managed by a proprietary enclosure service.

Firmware (FW) and EonOne

The firmware (FW) is preloaded and is used to configure the system. The FW can be accessed through EonOne, a browser-based graphical user interface (GUI) software that can be installed on a local/remote computer and accessed via the network. The manager communicates with the array via the connection of the existing host links or the Ethernet link to the array's Ethernet port.

Audible Alarms

The system comes with audible alarms that are triggered when certain active components fail or when certain controller or system thresholds are exceeded. Whenever you hear an audible alarm, it is imperative that you determine the cause and rectify the problem immediately.

Event notification messages indicate the completion or status of array configuration tasks and are always accompanied by two or three successive and prolonged beeps. The alarm can be turned off using the mute button on the front panel.

WARNING

Failing to respond when an audible alarm is heard can lead to permanent damage(s) to the system. When an audible alarm is heard, rectify the problem as soon as possible.

Hot-swapping

The system comes with a number of hot-swappable components that can be exchanged while the system is still online without affecting the operational integrity. These components should only be removed from the system when they have to be replaced.

The following components can be user-maintained and hot-swappable:

• Controller module (Dual-Controller models)
  • PSU (including cooling modules)
• Hard drive

NOTE

Normalized airflow ensures sufficient cooling of the system and is only attained when all components are properly installed. Therefore, a failed component should only be removed when a replacement is available. For instructions on how to replace these hot-swappable components, please refer to System Maintenance.

Hardware Installation

This chapter describes how to install modular components, such as hard drives into the enclosure and CMB into RAID controller enclosure.

NOTE

Installation into a rack or cabinet should occur BEFORE hard drives are installed into the system.

Installation Prerequisites

Static-free installation environment: The system must be installed in a static-free environment to minimize the possibility of electrostatic discharge (ESD) damage.

Component check: Before installing the system, check to see that you have received all the required components using the Unpacking List included in the package. If there are item(s) missing or appear damaged, contact your vendor for a replacement.

Hard drives: SAS/SATA hard drives must be purchased separately and be available prior to installing the system.

Cabling: All the cables that connect the system to the hosts must be purchased separately. Please refer to System Connection for sample topologies and configuration options. Contact your vendor for the list of compatible cables.

Memory modules: If you wish to change the pre-installed DIMM module, you can find DIMM replacement procedures in Replacing the Memory Module for RAID Models.

Rack installation: The rack slide rails are optional accessories and should you need to install it, please refer to the Slide Rail Installation Guide section.

Make sure you are aware of the related positions of each plug-in module and interface connector.

Cables must be handled with care and must not be bent. To prevent emission interference within a rack system and accidental cable disconnection, the routing paths must be carefully planned.

Installation Procedures Overview

Following all the instructions provided below can minimize system installation time.

Detailed, illustrated instructions for each component are given in the following sections.

1. Unpack: Unpack the system and confirm all components have been received against the Unpacking List.
2. Rack/Cabinet installation: If the system is going to be installed in a rack or cabinet, it should be installed prior to installing the hard drives. Installing the system into a rack or cabinet requires at least two people due to its weight. If you need to install the slide rails that came with the system, please go here.
3. Install CBM (if necessary): Install the CBM (Super Capacitor + Flash Backup Module) onto the controller if you purchased it as an additional item.
4. Install hard drives: Separately purchased SAS/SATA hard drives must be individually installed into the drive trays.
5. Install drive trays: After the hard drives have been installed into the drive trays, you can install the drive trays into the enclosure (install trays AFTER the enclosure has been mounted onto the rack).
6. Cable connection: Use the supplied power cords to connect the system to main power. It is recommended to connect power cords to separate and independent power sources (different circuit breakers for redundancy).
7. Power up: Once the components have been properly installed and all cables are properly connected, you can power up the system and configure the RAID array.

Unpacking the System

Compare the Unpacking List included in the shipping package against the actual package contents to confirm that all required materials have arrived.

Box contents

For detail content(s), please refer to the unpacking list that came with the system. The accessory items include a serial port cable, screws, Quick Installation Guide, a CD containing the EonOne management software and its manual and Firmware Operation Manual, and a product utility CD containing the Installation and Hardware Reference Manual (this document).

Preinstalled Components

Shown below are the components pre-installed in the system:

• Controllers
• LED front panels
  • DIMM module for RAID models
  • CBM
  • PSUs including cooling modules
• Host board

Components to be Installed

You must install the following components:

• The enclosure itself (please refer to the Slide Rail Kit Installation Guide)
- Hard drives
- Cabling

Installing Hard Drives

Installation of hard drives should only occur after the enclosure has been rack-mounted!

Hard Drive Installation Prerequisites

Hard drives are separately purchased and when purchasing hard drives, the following factors should be considered:

Capacity (MB/GB): Use drives with the same capacity. RAID arrays use a "least-common-denominator" approach, meaning the maximum capacity used in each drive for composing a RAID array is the maximum capacity of the smallest drive. Therefore it is recommended to use large storage capacity hard drives.

WARNING

Even hard drives by the same manufacturer, of the same model, and claiming the same rated capacity may actually carry different block numbers meaning that their capacity may not be exactly the same.

When configuring hard drives into a RAID array, you may use a slightly smaller capacity as the "Maximum Disk Capacity" in each individual hard drive. The configuration option can be found in the interface-specific firmware manual that came with your enclosure.

Profile: The drive trays and bays of the system are designed for 2.5" or 3.5" hard drives, depending on the EonStor GS model.

Drive type: The system uses SAS (3Gbps, 6Gbps or 12Gbps), SATA and Near-line 2.5" or 3.5" hard drives. Please ensure that you purchase the correct hard drives.

NOTE

If you prefer using SATA hard drives in a Dual-Controller RAID system or in attached JBODs, make sure you also purchase MUX kits.

MUX Board:

Shown below, controller A (1) and controller B (2) is connected to the backplane (3). With a MUX board (4) paired to the hard drive (5), data signals is able to switch between controllers A and B signal ports (indicated by the blue arrow / dotted line). Under normal circumstances, controller B signal port is in standby mode (6).

graph TD
    A["①"] --> B["③"]
    C["②"] --> B
    B --> D["④"]
    D --> E["⑤"]
    D --> F["⑥"]
    G["①"] --> H["⑤"]
    I["②"] --> H
    H --> J["⑤"]
    style D fill:#f9f,stroke:#333
    style F fill:#f9f,stroke:#333
    style G fill:#ccf,stroke:#333
    style I fill:#ccf,stroke:#333

MUX Kit Port Selector Mechanism

SAS Interface

The SAS interface features a dual-ported connectivity with pins on both sides of its connector that include SAS primary links (1), power link (2) and underneath it, the SAS secondary links (3). The SATA drives have only one port that includes the SATA physical links (4) and the power link (5). The MUX-enabled drive trays must be separately purchased and applied.

SAS ① ② ③ ④ ⑤ SATA

Dual-ported SAS and Single-port SATA Connectors

WARNING

The hard drives and drive trays should only be installed into the system after rack mounting. If the hard drives are installed first, the system will be too heavy to handle and the possible impact during installation may damage your hard drives.

Handle hard drives with extreme care and observe all ESD prevention methods when installing drives.

Only use screws supplied with the system package. Longer screws may damage the drive.

Hard Drive Designation

Illustrations shown below are system hard drive slot number designations. Please familiarize yourself with the designations to avoid withdrawing the hard drive(s) out of the enclosure.

1	2	3	4
5	6	7	8
9	10	11	12

2U: EonStor GS 3012

1

2

3

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2U: EonStor GS 3024B

1	2	3	4
5	6	7	8
9	10	11	12
13	14	15	16

3U: EonStor GS 3016

Installing the Hard Drive into Drive Tray

Open the bezel by pressing the release button and gently pull out the tray.

Illustration of a hand holding a document with a blue signal icon, no text or symbols present

3.5 inch

Illustration of a refrigerator with a hand holding a paper, emitting sound waves (no text or symbols)

2.5 inch

Place the hard drive into the drive tray, making sure that the interface connector is facing the open side of the drive tray and its label side facing up.

If you want to install a SAS drive, an installed MUX board must be removed first.

2.5 inch SATA HDD 2.5 inch SAS HDD 2.5 inch SATA HDD 2.5 inch SAS HDD

Installing a 3.5" SAS / NL-SAS / SATA drive

2.5 inch SATA HDD 2.5 inch SAS HDD 2.5 inch SAS HDD

Installing a 2.5" SAS / SATA drive

Adjust the drive location until the mounting holes in the drive tray are aligned with those on the hard drive. Secure the drive with four of the supplied flat-head screws.

Installing the Hard Drive Tray into the Enclosure

Once the hard drives have been installed in the drive trays, install the drive trays into the system.

WARNING

Each drive bay must be populated with a tray even if it does not contain a hard drive. An empty bay will disrupt ventilation and the system might overheat.

Technical line drawing of a server rack with mounting hardware and a blue arrow indicating direction (no text or symbols)

NOTE

The design of the hard drive tray might differ from the pictures shown.

With the hard drive tray bezel opened, align and insert the tray into the enclosure. Once fully inserted, close the tray till it's snapped.

Installing Host Boards

NOTE

As an upgrade to existing Single-Controller systems, down time may occur! Please install one controller at a time. ALWAYS install to the left host board slot (close to SAS Exp.) first before installing to the right host board slot! If you want to install a different host board than currently installed, make sure that you replace both host boards. Both installed host boards must be identical! The system will do a factory reset!

1. Shutdown (for Single-Controller systems in operation) and remove the controller from the enclosure.
2. For users installing a new host board, you will need to remove the screws holding the dummy covers in place.

Technical line drawing of a server rack with multiple ports and indicator lights (no text or symbols)

1. If you are replacing an existing host board, please loosen the thumb screw that is securing the host board onto the controller and gently lift the host board.

Guide pin (blue)

Thumb screw on host board

1. By holding onto the edges of the PCB and using the "guide pin" for positioning, power the replacement host board into the controller. Tighten the thumb screw to complete the installation. Reinsert the controller back into the system.

Installing the Controller

1. Insert the controller slowly into the module slot. When you feel the contact resistance, use slightly more force and then push both of the ejection levers upwards (indicated by the blue arrows) to secure the controller into chassis.

Technical line drawing of a computer drive chassis showing internal components and fan structures (no text or labels)

1. Secure the controller by fastening the two retention screws (1) under the ejection levers (2).

Technical diagram showing a mechanical setup with labeled components and a tool, including numbered parts 1 and 2.

System Connection

This chapter outlines the general configuration rules you should follow when cabling a storage system and introduces basic information about topologies. You can use these topologies or refer to them as a guide for developing your own unique topologies. A complete description of the power-on and power-off procedures is also given in this chapter.

General Considerations on Making Connections

When selecting the number of hard drives to be included in a logical drive, the host channel bandwidth and the mechanical performance of individual disk drives should be considered.

It is a good practice to calculate performance against the host port bandwidth when designing an application topology. As an example, if eight members are included in a logical drive and this logical drive is associated with a host ID (LUN mapping), the combined performance of this logical drive should approximate the channel bandwidth. If, for example, two 6-drive logical arrays are associated with two IDs residing on a single host channel, there may be a trade-off with performance.

If your system comes with a total of 8+ host ports, it is recommended that you obtain more disk drives by attaching a JBOD so that you can create host-port corresponding 6-member logical drives (RAID-5) or 8-member logical drives (RAID-6). These logical drives leverage the bandwidth of each host port.

There are other considerations:

• For example, a spare drive carries no data stripes and will not contribute to disk-level performance. Refer to the documentation for your hard drives for performance data.
• The disk drives in the same logical array should have the same capacity, but it is preferred that all the drives within a chassis have the same capacity.

• Disk drives in the same logical drive should have the same capacity, but it is preferred that all the disk drives within a chassis have the same capacity. Tiered storage configuration is supported, e.g., 150GB SAS drives in your RAID enclosure and 750GB SATA drives in JBODs. However, you should not include both SAS and SATA drives in a logical drive.

• A spare drive should have a minimum capacity that is equivalent to the largest drive that it is expected to replace. If the capacity of the spare is less than the capacity of the drive it is expected to replace, the controller will not proceed with the failed drive rebuild.

• When cabling, follow all the specifications. Pay attention to signal quality and avoid electronic noise from adjacent interfaces, e.g., do not lay power cords on optical cables.
• When rack-mounted, leave enough slack in the cables so that they do not bend to a diameter of less than 76mm (3 inches).
• Route the cables away from places where it can be damaged by other devices, e.g., foot traffic or fan exhaust.
• Do not over-tighten or bend the cables.

Host-Side Topologies

The primary concern for configuring host-side topologies is to avoid points of failure. It is therefore recommended that the host ports are connected to at least two HBAs.

NOTE

In order to manage the fault-tolerant data paths and to optimize data throughput on multiple data paths, it is necessary to apply EonPath multipath software or utilities such as Linux Device Mapper.

Host port channel designation may vary from system to system, please refer to the following topologies as a guide to create your own connections to suit your needs.

Host-Side Parameters

It is STRONGLY recommended that users use the default settings with their system. Should you feel the need to adjust your host-side parameters, please consult on-site technical personnel or seek technical support from your vendor.

Maximum Concurrent Host LUN Connection ("Nexus" in SCSI)

Fr1 Jul 22 10:47:06 2005 Cache Status: Clean BAT:+++++ < Main Menu > Quick installation view view view view view view view view s C v C V Maximum Queued I/O Count - 256 LUNs per Host ID - 8 Max Number of Concurrent Host-LUN Connection - Def(4) Number of Tags Reserved for each Host-LUN Connection Peripheral Device Type Parameters Host Cylinder/Head/Sector Mapping Configuration Fibre Connection Option - Loop only Default 1 2 4 8 16 32 64 128 256 512 1024 Host-side Parameters Drive-side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters Arrow Keys:Move Cursor Enter:Select Esc:Exit Ctrl+L:Refresh Screen

The "Max Number of Concurrent Host-LUN Connection" menu option is used to set the maximum number of concurrent host-LUN connections.

Maximum concurrent host LUN connection (nexus in SCSI) is the arrangement of the controller internal resources for use with a number of the current host nexus.

For example, you can have four hosts (A, B, C, and D) and four host IDs/LUNs (IDs 0, 1, 2 and 3) in a configuration where:

• Host A accesses ID 0 (one nexus).
• Host B accesses ID 1 (one nexus).
• Host C accesses ID 2 (one nexus).
• Host D accesses ID 3 (one nexus).

These connections are all queued in the cache and are called four nexus.

If there is I/O in the cache with four different nexus, and another host I/O comes with a nexus different than the four in the cache (for example, host A accesses ID 3), the controller returns busy. This occurs with the concurrent active nexus; if the cache is cleared, it accepts four different nexus again. Many I/O operations can be accessed via the same nexus.

Maximum Queued I/O Count

Thu Aug 11 18:22:04 2005 Cache Status: Clean BAT:+++++ < Main Menu > Quick installation view view view view view Maximum Queued I/O Count - 256 LUNs per Host ID - 8 Max Number of Concurrent Host-LUN Connection - Def( Number of Tags Reserved for each Host-LUN Connectio Peripheral Device Type Parameters Host Cylinder/Head/Sector Mapping Configuration Fibre Connection Option - Loop only Auto 1 2 4 8 16 32 64 128 256 512 1024 v s C v C Host-side Parameters Drive-side Parameters Disk Array Parameters Controller Parameters

Arrow Keys:Move Cursor Enter:Select Esc:Exit Ctrl+L:Refresh Screen

The "Maximum Queued I/O Count" menu option enables you to configure the maximum number of I/O operations per host channel that can be accepted from servers. The predefined range is from 1 to 1024 I/O operations per host channel, or you can choose the "Auto" (automatically configured) setting. The default value is 256 I/O operations.

The appropriate "Maximum Queued I/O Count" setting depends on how many I/O operations the attached servers are performing. This can vary according to the amount of host memory present as well as the number of drives and their size. But usually, optimum performance results from using the "Auto" or "256" settings.

For more information, please refer to the Firmware Manual that came with your system.

Fibre-Host Connections (including 10Gb FCOE iSCSI)

WARNING

All Fibre cables are sensitive and must be handled with care. To avoid interference, the cable routing path must be carefully planned and the cables must not be bent.

The Fibre Channel standard allows optical connections. Optical cables can be used over longer distances and have been shown to be more reliable. Due to the demands of high transfer rates, optical cables are preferred for 16/8/4Gbps fiber connectivity. Optical cables are not susceptible to EMI.

The Fibre host ports connect to Fibre Channel host adapters (HBA) that feature SFP interface that supports full-duplex transfer and come with a preferred 64-bit/133MHz PCI-X or PCI-E interface. Please contact your vendor for the latest certified items.

WARNING

Lasers can be hazardous and may cause permanent eye damage or blindness, and therefore must be treated with respect and used with caution. Never look directly at lasers while it is turned on.

Auto speed detection

Speed auto-detection is specified by the Fibre Channel standard. If a 16Gbps port is connected to an 8Gbps port, it will negotiate down and run at 8Gbps. If there are 16Gbps ports on both ends of the link, the link will run at 16Gbps.

SFP / SFP+ transceivers

An SFP transceiver converts electrical data signals into light signals and transfers them transparently via optical fiber. A transceiver provides bi-directional data links, a laser transmitter (for fiber optic cables), LC connector, and a metal enclosure to lower the EMI.

Other beneficial features of a typical SFP transceiver include a single power supply, low power dissipation, and hot-swap capability. It is also important that any transceiver you use meets the FC performance and reliability specifications.

WARNING

The SFP transceiver contains a laser diode featuring class 1 laser. To ensure continued safety, do not remove any covers or attempt to gain access to the inside of the product. Refer all servicing to qualified personnel.

FC port dust plugs

Each FC port comes with a dust plug. Remove these dust plugs only when you are ready to insert an SFP transceiver.

Please contact your vendor for a list of compatible components!

Fibre-Host Topologies

The Fibre Channel standard supports three (3) separate topologies. They are point-to-point, Fibre Channel Arbitrated Loop (FC-AL), and fabric switch topologies.

• Point-to-Point: Point-to-point topology is the simplest topology. It is a direct connection between two (2) Fibre Channel devices.
• FC-AL: This is the most common topology currently in use. Fibre Channel devices are all connected to a loop. Each device is assigned an arbitrated loop physical address (AL_PA). The FC-AL supports 124 devices in a single loop.
• Fabric: The fabric topology supports up to 224 Fibre Channel devices. This topology allows multiple devices to communicate simultaneously. A Fibre switch is required to implement this topology.

NOTE

If a logical drive has to be accessed by different servers, file locking, FC switch zoning, port binding, and multipath access control will be necessary.

Fibre Cabling

Following are steps that should be completed with cabling:

1. Maintain a configuration plan. In addition to cabling topologies and list of networking components, the plan can also include firmware and software maintenance details.
2. Confirm that you have a Fibre Channel cable that loops 6-inch or longer.
3. Ensure proper airflow and keep cables away from ventilation airflow outlets.

Cabling steps:

1. Remove the SFP module (1) from its static-protective package.
2. Remove the dust plug (2) from the SFP transceiver module.

Diagram of a device showing four labeled components connected via a blue arrow, likely illustrating a signal or transmission process.

1. Insert the SFP module into one of the system host ports. The module will snap into place.
2. Remove the two protective caps (3) from the LC-to-LC type cable. Save the protective caps for future use
3. Connect a LC-to-LC type cable (4).
4. Carefully insert the cable into an SFP module that is already on the system. The cable connector is keyed and will click into place.
5. Remove the protective caps on the other end and connect this end to an SFP transceiver module on a Fibre Channel switch port or a Fibre Channel host bus adapter (HBA) port.

Simple End-to-End Connection

graph TD
    subgraph RAID
        ALV_BLV --> LD
        ALV_BLV --> LD
        LD --> RAID
        LD --> JBOD
    end

    subgraph JBOD
        HBA_0 --> EonPath
        HBA_1 --> EonPath
        HBA_0 --> CH0_B13
        HBA_1 --> CH0_A112
        HBA_0 --> CH1_B13
        HBA_1 --> CH1_A112
        HBA_0 --> CH2_A112
        HBA_1 --> CH2_B113
        HBA_0 --> CH3_A112
        HBA_1 --> CH3_B113
    end

    ALV_BLV <--> ALV_BLV
    ALV_BLV <--> JBOD
    LD <--> RAID
    LD <--> JBOD
    LD <--> RAID
    LD <--> JBOD

    HBA_0 --> EonPath
    HBA_1 --> EonPath
    HBA_0 --> CH0_B13
    HBA_1 --> CH0_A112
    HBA_0 --> CH1_B13
    HBA_1 --> CH1_A112
    HBA_0 --> CH2_A112
    HBA_1 --> CH2_B113
    HBA_0 --> CH3_A112
    HBA_1 --> CH3_B113

    EonPath --> CH0_B13
    EonPath --> CH0_A112
    EonPath --> CH1_B13
    EonPath --> CH2_A112
    EonPath --> CH2_B113

    style ALV_BLV fill:#f9f,stroke:#333
    style JBOD fill:#ccf,stroke:#333

Channels	Controller A		Controller B
Host	CH0, CH1, CH2, CH3		CH0, CH1, CH2, CH3
Configuration Information
RAID controller		2
Host server		2
Data path connection		Fault-tolerant data paths.
Host channel bandwidth		6400 MB/s

Above is an example demonstrating simple end-to-end connections with each SFP port connected to a host adapter. Multiple logical drives, logical volumes, and logical partitions can be created and each mapped to the corresponding host channel ID/LUN combinations.

Note that EonPath multipath software or Linux Device Mapper is necessary for controlling and optimizing the access to logical drives via multiple data paths.

DAS (Direct-Attached) Connection

NOTE

If a logical drive has to be accessed by different servers, file locking, FC switch zoning, port binding, and multipath access control will be necessary in order to avoid access contention.

graph TD
    subgraph EonPath
        A["HBA 0"] --> B["EonPath"]
        C["HBA 1"] --> B
        B --> D["CH0 ID112"]
        B --> E["CH1 ID112"]
        D --> F["LD0"]
        E --> G["LD1"]
    end

    subgraph EonPath
        H["HBA 0"] --> I["EonPath"]
        J["HBA 1"] --> I
        I --> K["CH2 ID112"]
        I --> L["CH3 ID112"]
        K --> M["LD0"]
        L --> N["LD1"]
    end

    subgraph LD0
        O["Link ○ Ba2G ○ Link ○ Ba2G"] --> P["Ch0 ID112"]
        Q["Link ○ Ba2G ○ Link ○ Ba2G"] --> R["Ch1 ID112"]
        S["Link ○ Ba2G ○ Link ○ Ba2G"] --> T["Ch3 ID112"]
    end

    subgraph LD1
        U["Link ○ Ba2G ○ Link ○ Ba2G"] --> V["Ch0 ID112"]
        W["Link ○ Ba2G ○ Link ○ Ba2G"] --> X["Ch1 ID112"]
        Y["Link ○ Ba2G ○ Link ○ Ba2G"] --> Z["Ch3 ID112"]
    end

Channels	Controller A
Host	CH0, CH1, CH2, CH3
Configuration Information
RAID controller		1
Host server		2
Data path connection		Simple end-to-end connections with fault-tolerant pairs
Host channel bandwidth		3200 MB/s

With more disk drives over SAS expansion links, you can create more logical groups of drives. These logical drives using more host channel IDs or LUN numbers.

If a server has multiple data paths to a RAID system, a multi-path software is necessary, e.g., the EonPath driver.

The two logical drives in the above drawing cannot leverage the full computer power of the system. You may attach 1 or 2 more JBODs to acquire more end-to-end performance.

Switched Fabric Connection (Dual-Controller)

NOTE

A logical partition presented through LUN Mapping can be seen by all servers across SAN. Make sure you have access control such as file-locking, switch zoning, port binding, etc., to avoid access contention.

Network architecture diagram showing EonPath and ALV BLV connections with CH0-A16, CH2-A17, CH3-A19 components and server racks.

Channels	Controller A		Controller B
Host	CH0, CH1, CH2, CH3		CH0, CH1, CH2, CH3
Configuration Information
RAID controller		2
Host server		4 (or more via FC switches)
FC switch		2 (or 1 into 2 zones)
Data path connection		Fault-tolerant paths
Host channel bandwidth		6400 MB/s

Channel link bypass is provided on external FC switches. Each of the application servers shown in the diagram is equipped with two HBAs with FC links via two FC switches to the SFP ports on individual RAID controllers.

You can refer to the ID tags on the host links to see the related logical volume mapping and cable links routing paths. Through the cable links illustrated above, the configuration can withstand a failure of a single component, e.g., RAID controller, HBA, cable, or FC switch.

Each logical partition is redundantly mapped to multiple host channel IDs in an AAPP (Active-Active-Passive-Passive) configuration. Logical volumes are managed either by the controller A or by the controller B. The Passive IDs will only become functional when a Single-Controller fails in the system. The EonPath driver is a must on the application servers. The driver communicates with system firmware and performs load balance and automated distribution of I/O's across preferred paths (Active IDs on data paths). TPGS (Target Port Group Service) is supported so that I/O's are routed to the preferred paths.

Switched Fabric Connection (Single-Controller)

graph TD
    subgraph_HBA_0["HBA 0"]
        A1["CH0 A112"] --> B1["EonPath"]
        A2["CH1 A112"] --> B1
        A3["CH0 A115"] --> B1
    end
    subgraph_HBA_1["HBA 1"]
        A4["CH0 B114"] --> B2["EonPath"]
        A5["CH0 B113"] --> B2
        A6["CH1 B114"] --> B2
        A7["CH0 A115"] --> B3["CH0 CH1 CH2 CH3"]
    end
    B1 --> C["Terminal Block"]
    B2 --> C
    B3 --> D["Terminal Block"]
    C --> E["Ch0 A112"]
    C --> F["Ch0 B114"]
    C --> G["Ch1 A112"]
    C --> H["Ch0 B113"]
    C --> I["Ch0 A115"]
    C --> J["Ch0 B113"]
    C --> K["Ch0 A115"]
    L["Terminal Block"] --> M["Ch0 A112"]
    L --> N["Ch0 B114"]
    L --> O["Ch1 A112"]
    L --> P["Ch0 B113"]
    L --> Q["Ch0 A115"]

LD0 LD1

Channels	Controller A
Host	CH0, CH1, CH2, CH3
Configuration Information
RAID controller		1
Host server		4
Data path connection		Data paths are attached to one or more FC switches. SAN management measures, such as switch zoning and port binding, should be taken to avoid multiple servers from accessing the same LUN.
Host channel bandwidth		3200 MB/s

Above is the sample drawing showing connections with each SFP port connected to FC switches and then to host adapters. See logical associations in the drawing for LUN mapping details.

Use Enclosure-specific spares to prevent a spare drive from participating in the rebuild of a logical drive on another enclosure.

You can refer to the ID tags on the host links to see the related LUN mapping and cable links routing paths.

Each logical partition is mapped to a single host channel ID. If you prefer path redundancy, you can map a logical partition to IDs residing on two different channels. You will then need the EonPath driver to manage access through two different HBA ports. The driver communicates with system firmware and performs load balance and automated distribution of I/O.

If multiple servers can “see” a mapped volume, you will need to avoid access contention using file locking software, port binding, or zoning feature by FC switches, which limits the access from host to a specific LUN. If you have two servers in a clustered configuration, access control will be performed by the clustering software.

SAS-Host RAID Connections

Please contact your vendor to purchase compatible host-link cables.

SAS cables (28AWG x 8 pairs) are characterized by 100ohm, black colors, UL-approved, lead-free, 50, 120 or 170cm cable lengths; connectors can be secured to chassis receptacle using latching mechanism.

WARNING

All SAS cables are sensitive and must be handled with care. To prevent interference within a rack system, the cable routing path must be carefully planned and the cables must not be bent.

DAS (Direct-Attached Storage) Connection with Redundant Host Path

graph TD
    subgraph_EonPath_E["OnPath E"]
        HBA0["HBA 0"] --> EonPathE["EonPath E"]
        HBA1["HBA 1"] --> EonPathE["EonPath E"]
        CH0AID["CH0 AID"] --> EonPathE["EonPath E"]
        CH1AID["CH1 AID"] --> EonPathE["EonPath E"]
        CH1BID["CH1 BID"] --> EonPathE["EonPath E"]
        CH0BID["CH0 BID"] --> EonPathE["EonPath E"]
    end

    subgraph_LV["LV"]
        CH0AID["CH0 AID"] --> LV["LV"]
        CH0BID["CH0 BID"] --> LV["LV"]
        CH1AID["CH1 AID"] --> LV["LV"]
        CH1BID["CH1 BID"] --> LV["LV"]
        CH1AID["CH1 AID"] --> LV["LV"]
        CH0BID["CH0 BID"] --> LV["LV"]
        CH0AID["CH0 BID"] --> LV["LV"]
    end

    subgraph_RAID["RAID"]
        LDLD["LD LD"] --> RAID["RAID"]
        RAID["RAID"] --> RAID1["RAID"]
        RAID1["RAID"] --> RAID2["RAID"]
    end

Dual-Controller models

graph TD
    subgraph EonPath
        HBA0["HBA 0"] --> A["Computer"]
        HBA1["HBA 1"] --> A
        A --> CH0AID["CH0 AID"]
        CH0AID --> CH1AID["CH1 AID"]
        CH1AID --> A
    end
    subgraph CH0AID
        CH0AID --> LV["LV"]
        CH1AID --> LV
    end
    subgraph LD
        LD["LD"]
        LD --> RAID["RAID"]
    end

Single-Controller models

With more hard drives over SAS expansion links, you can create more logical groups of drives. Avail these logical partitions using more LUN numbers.

NOTE

EonPath multipath software or Linux Device Mapper is necessary for controlling and optimizing the access to logical drives via multiple data paths.

DAS (Direct-Attached Storage) Connection to Two Servers

graph TD
    subgraph_CH0_AID["CH0 AID CH1 AID"]
        A1["Computer"] --> A2["Device"]
        A3["Computer"] --> A4["Device"]
        A5["Computer"] --> A6["Device"]
    end
    subgraph_CH1_AID["CH1 AID"]
        B1["Computer"] --> B2["Device"]
        B3["Computer"] --> B4["Device"]
        B5["Computer"] --> B6["Device"]
    end
    A1 --> C["Device"]
    A2 --> C
    A3 --> C
    A4 --> C
    A5 --> C
    A6 --> C
    B1 --> D["LV"]
    B2 --> E["LV"]
    B3 --> F["LV"]
    B4 --> G["LV"]
    B5 --> H["LV"]
    B6 --> I["LV"]
    D --> J["LD"]
    E --> K["LD"]
    F --> L["LD"]
    G --> M["LD"]
    H --> N["LD"]
    I --> O["LD"]
    J --> P["Storage Unit"]
    K --> Q["Storage Unit"]
    L --> R["Storage Unit"]
    M --> S["Storage Unit"]

RAID

NOTE

If you would like a LUN (a logical partition) to be accessed by multiple hosts, file locking or multipath access control will be necessary.

iSCSI-Host RAID Connections

Ethernet cable requirements:

• Ethernet cables are user-supplied. Cat5e shielded STP type network cables or better performance types (important for meeting the requirements imposed by emission standards).
• Straight-through Ethernet cables with RJ-45 plugs.
• Use of cross-over cables can also be automatically detected and re-routed for a valid connection.

Connection types:

• Directly to iSCSI initiators (software or hardware) or via Gigabit Ethernet switches.
• To servers equipped with iSCSI HBA – preferably a hardware TOE (TCP/IP Offload Engine) card, and then to client stations with an Ethernet NIC or iSCSI HBA.
• The system presents its logical volumes through SCSI-like IDs and LUNs. These RAID volumes then appear as iSCSI targets through the network.

NOTE

Even though iSCSI initiator software is a cost-effective way of building an iSCSI SAN, software initiator adds additional workload to the server CPU. It is recommended to apply iSCSI HBAs that come with TCP/IP offload engines in order to reduce overhead.

Network & Host Connection Topologies

The iSCSI host ports connect to Ethernet network devices and iSCSI initiators that comply with the IETF iSCSI standard (RFC 3720). Network connection of the iSCSI ports is flexible. The use of network connecting devices, subnet, Name Servers, or iSCSI management software can vary from case to case. In the following sections, configuration diagrams will be provided to illustrate the possible uses of the EonStor GS system in an iSCSI network.

Note that host NIC ports and the storage system's iSCSI host ports must be configured into the same subnet.

Please note the following:

• Use the Ethernet management port for management purposes only, i.e., EonOne or telnet console. This Ethernet management port is not used for I/O transactions.
• Configurations such as subnet or Virtual LAN can separate iSCSI host links, decrease overhead, and eliminate the impact of link failure.
• Multiple arrays or logical partitions can be created and made available separately through different IDs or LUN numbers on the host ports. Usually, a RAID5 logical drive of eight (8) members often brings optimal array performance.

NOTE

If you are using Microsoft's software initiator, please de-select the embedded MPIO function when installing the software, as the MPIO selection creates conflicts with EonPath driver.

Software Update Installation Wizard Microsoft iSCSI Initiator Installation Microsoft iSCSI Initiator will be upgraded from 2.0x Installation Options ✓ Initial For Close ✓ Initiator Service ✓ Software Initiator ✓ Microsoft MPI0 Multipathing Support for iSCSI < Back Next > Cancel

High Availability IP SAN with Redundant RAID Controller

graph TD
    subgraph HBA
        HBA1["Computer"] -->|HBA| VLAN0["VLAN 0"]
        HBA2["Computer"] -->|HBA| VLAN0
        HBA3["Computer"] -->|HBA| VLAN0
        HBA4["Computer"] -->|HBA| VLAN0
    end

    subgraph_CH0_AID_1["CH0 AID* CH1 AID* CH2 BID* CH3 BID*"]
        CH0_1["CH0"] --> VLAN1["VLAN 1"]
        CH0_2["CH1"] --> VLAN1
        CH0_3["CH2"] --> VLAN1
        CH0_4["CH3"] --> VLAN1
    end

    subgraph_CH0_AID_2["CH0 AID* CH1 AID* CH2 BID* CH3 BID*"]
        CH0_2["CH0"] --> VLAN1
        CH0_3["CH1"] --> VLAN1
        CH0_4["CH2"] --> VLAN1
        CH0_5["CH3"] --> VLAN1
    end

    subgraph_CH3_AID["CH3 AID"]
        CH3_AID_1["LD 0 LD 1 LD 2 LD 3"]
        CH3_AID_2["LD 0 LD 2 LD 3"]
        CH3_AID_3["LD 0 LD 3 LD 4"]
        CH3_AID_4["LD 0 LD 4 LD 5"]
    end

    VLAN0 --> VLAN1
    VLAN1 --> VLAN0
    style VLAN0 fill:#f9f,stroke:#333
    style VLAN1 fill:#ccf,stroke:#333

Component	Description
RAID system	iSCSI RAID managed by redundant RAID controllers, with a total of 8 host ports
HBA	iSCSI initiators, preferably PCI-E TCP/IP offload engine (TOE) capable cards
GbE cables	GbE network cables
GbE switch	Ports divided into 2 virtual LANs to separate access from host to targets.
Software	EonPath to manage the fault-tolerant paths with failover/failback and load balance capabilities. Use EonPath multipath software so that your operating system can identify alternate paths to the same logical drive.
RAID configuration	Remote replication functionality is not supported using this configuration. For remote replicationsetup, please refer to “High Availability IP SAN(Remote Replication Enabled) or “High Availability IPSAN with Port Trunk (Remote Replication Enabled)".4 logical drives (each has 4 member drives; for better performance, you can include drives from JBOD)LD0 mapped to CH0 AID and CH0 BID; LD assigned to controller ALD1 mapped to CH1 AID and CH1 BID; LD assigned to controller ALD2 mapped to CH2 AID and CH2 BID; LD assigned to controller BLD3 mapped to CH3 AID and CH3 BID; LD assigned to controller B
*	LD assignment

NOTE

In the event of Single-Controller failure, a logical drive is accessed through the host IDs managed by the alternate RAID controller. Host IDs and port IPs do not fail-over to the surviving controller. Therefore, the EonPath multipath driver is necessary for path redundancy and controller failover.

Single-Controller with Fault-Tolerant Path

graph TD
    subgraph "RAID + JBOD"
        A["LV"] --> B["LD"]
        C["LV"] --> D["LD"]
        B --> E["LV"]
        D --> E
    end

    subgraph "VLAN1 VLAN2"
        F["GBE switch"] --> G["Ch0 ID0 CH1 ID0 CH0 ID1 CH1 ID1"]
        F --> H["Ch0 ID0 CH1 ID0 CH0 ID1 CH1 ID1"]
        F --> I["Ch0 ID0 CH1 ID0 CH0 ID1 CH1 ID1"]
    end

    subgraph "HBA 1HRA 0"
        J["EonPath"] --> K["HBA 1HRA 3"]
        J --> L["HBA 1HRA 0"]
        K --> M["EonPath"]
        L --> M
        M --> N["Ch2 ID0 CH3 ID0 CH2 ID1 CH3 ID1"]
        M --> O["Ch2 ID0 CH3 ID0 CH2 ID1 CH3 ID1"]
    end

    subgraph "HBA 1HRA 3" --> P["EonPath"]
        Q["EonPath"] --> R["HBA 1HRA 0"]
    end

    style A fill:#d4edda,stroke:#333
    style C fill:#d4edda,stroke:#333
    style D fill:#d4edda,stroke:#333
    style E fill:#e6f7ff,stroke:#333
    style F fill:#e6f7ff,stroke:#333
    style J fill:#e6f7ff,stroke:#333
    style Q fill:#e6f7ff,stroke:#333
    style M fill:#e6f7ff,stroke:#333
    style N fill:#e6f7ff,stroke:#333
    style O fill:#e6f7ff,stroke:#333
    style P fill:#e6f7ff,stroke:#333
    style Q fill:#e6f7ff,stroke:#333
    style R fill:#e6f7ff,stroke:#333
    style S fill:#e6f7ff,stroke:#333
    style T fill:#e6f7ff,stroke:#333
    style U fill:#d4edda,stroke:#333
    style V fill:#d4edda,stroke:#333
    style W fill:#d4edda,stroke:#333
    style X fill:#d4edda,stroke:#333
    style Y fill:#d4edda,stroke:#333
    style Z fill:#d4edda,stroke:#333

Component	Description
RAID system	Single-Controller 4-port iSCSI RAID
HBA or NIC	iSCSI initiators, preferably PCI-E TCP/IP offload engine (TOE) capable cards
GbE cables	GbE network cables
Software	EonPath to manage the fault-tolerant paths with failover/failback and load balance
RAID configuration	4 logical partitions (created from 2 logical volumes)2 Logical Volumes (each contains a logical drive)2 Logical Drives* Each logical partition appears on two different host links for the purpose of fault tolerance. Use EonPath multipath software so that your operating system can identify alternate paths to the same logical drive.

High Availability IP SAN (Recommended Cabling Method for Remote Replication)

graph TD
    subgraph EonPath_EonPath
        HBA["HBA"] --> VLAN0["VLAN 0"]
        HBA --> VLAN1["VLAN 1"]
        VLAN0 --> CH0["CH0"]
        VLAN0 --> CH1["CH1"]
        VLAN0 --> CH2["CH2"]
        VLAN0 --> CH3["CH3"]
        VLAN1 --> CH0a["CH0"]
        VLAN1 --> CH1b["CH1"]
        VLAN1 --> CH2b["CH2"]
        VLAN1 --> CH3b["CH3"]
    end

    subgraph VLAN 0
        CH0a["CH0"] --> LD0["LD 0 LD 1"]
        CH1a["CH1"] --> LD0
        CH2a["CH2"] --> LD0
        CH3a["CH3"] --> LD0
    end

    subgraph VLAN 1
        CH0b["CH0"] --> LD0
        CH1b["CH1"] --> LD0
        CH2b["CH2"] --> LD0
        CH3b["CH3"] --> LD0
    end

    HBA -.-> VLAN 0
    HBA -.-> VLAN 1
    VLAN 0 -.-> LD0
    VLAN 1 -.-> LD0

    style EonPath_EonPath fill:#4CAF50,stroke:#388E3C
    style VLAN 0 fill:#4CAF50,stroke:#388E3C
    style VLAN 1 fill:#4CAF50,stroke:#388E3C

    subgraph VLAN 0
        CH0a["AID*"] --> LD0
    end

    subgraph VLAN 1
        CH1a["BID*"] --> LD0
    end

    subgraph VLAN 0
        CH2a["AID*"] --> LD0
    end

    subgraph VLAN 1
        CH3a["BID*"] --> LD0
    end

    subgraph VLAN 0
        CH0b["AID"] --> LD0
    end

    subgraph VLAN 1
        CH1b["BID"] --> LD0
    end

    subgraph VLAN 0
        CH2b["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3b["BID"] --> LD0
    end

    subgraph VLAN 0
        CH0c["AID*"] --> LD0
    end

    subgraph VLAN 1
        CH1c["BID"] --> LD0
    end

    subgraph VLAN 0
        CH2c["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3c["BID"] --> LD0
    end

    subgraph VLAN 0
        CH0d["AID*"] --> LD0
    end

    subgraph VLAN 1
        CH1d["BID"] --> LD0
    end

    subgraph VLAN 0
        CH2d["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3d["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3e["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3eB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3f["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3fB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3g["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3gB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3h["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3hB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3i["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3iB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3j["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3jB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3k["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3kB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3l["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3lB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3m["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3mB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3n["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3nB["BID"] --> LD0
    end

    subgraph VLAN 0
        CH3nA["AID"] --> LD0
    end

    subgraph VLAN 1
        CH3nB["BID"] --> LD0
    end

Component	Description
RAID system	iSCSI RAID managed by redundant RAID controllers, with a total of 8 host ports.
HBA	iSCSI initiators, preferably PCI-E TCP/IP offload engine (TOE) capable cards.
GbE cables	GbE network cables
GbE switch	Ports divided into 2 virtual LANs; both controllers are linked to both virtual LAN zones.
Software	EonPath to manage the fault-tolerant paths with failover/failback and load balance. Use EonPath multipath software so that your operating system can identifyalternate paths to the same logical drive.
RAID configuration	2 logical drives (each has 8 member drives). More logical drives can be created from drives in JBOD.LD0 mapped to CH0 AID, CH1 BID, CH2 AID and CH3 BID; LD has to be assigned to both controllers A and B to enable remote replication.LD1 mapped to CH1 BID, CH0 AID CH3 BID and CH2 AID; LD has to be assigned to both controllers A and B to enable remote replication.

NOTE

In the event of Single-Controller failure, a logical drive is accessed through the host IDs managed by the alternate RAID controller. Host IDs and port IPs do not fail-over to the surviving controller. Therefore, the EonPath multipath driver is necessary for path redundancy and controller failover.

High Availability IP SAN with Port Trunk (Remote Replication Enabled)

graph TD
    subgraph EonPath_EonPath
        HBA["HBA"] --> VLAN0["VLAN 0"]
        HBA --> VLAN1["VLAN 1"]
    end
    subgraph VLAN0
        CH0["CH0"] --> VLAN1
        CH1["CH1"] --> VLAN1
        CH2["CH2"] --> VLAN1
        CH3["CH3"] --> VLAN1
    end
    subgraph VLAN1
        CH0A["CH0 AID"] --> VLAN1A["LD 0 LD 1"]
        CH1A["CH1 BID"] --> VLAN1A
        CH0B["Ch0 AID"] --> VLAN1B["LD 0 LD 1"]
        CH1B["Ch1 BID"] --> VLAN1B
    end
    HBA -.-> VLAN0
    HBA -.-> VLAN1
    HBA -.-> VLAN0
    HBA -.-> VLAN1
    HBA -.-> VLAN0
    HBA -.-> VLAN1
    HBA -.-> VLAN0
    HBA -.-> VLAN1
    HBA -.-> VLAN0
    HBA -.-> VLAN1
    HBA -.-> VLAN0
    HBA -.-> VLAN1
    HBA -.-> VLAN0
    HBA -.-> VLAN1
    HPA["HBA"] --> VLAN0
    HPA --> VLAN1
    HPA --> VLAN0
    HPA --> VLAN1
    HPA --> VLAN0
    HPA --> VLAN1

Component	Description
RAID system	iSCSI RAID managed by redundant RAID controllers, with a total of 8 host ports
HBA	iSCSI initiators, preferably PCI-E TOE cards
GbE cables	GbE network cables; port-trunking indicated by the blue circles
GbE switch	Ports divided into 2 virtual LANs; both controllers are linked to both virtual LAN zones
Software	EonPath to manage the fault-tolerant paths with failover/failback and load balance. Use EonPath multipath software so that your operating system can identify alternate paths to the same logical drive.
RAID	2 logical drives (each has 8 member drives). More
configuration	logical drives can be created from drives in JBOD.LD0 mapped to CH0 AID and CH1 BID; LD has to be assigned to both controllers A and B to enable remote replicationLD1 mapped to CH1 BID and CH0 AID; LD has to be assigned to both controllers A and B to enable remote replication

Hybrid Host Connections

For hybrid systems that feature two additional iSCSI ports, they can be used for remote replication or be used for host LUN mapping if users wish to do so.

Single Hybrid Unit Connected to FC/iSCSI Hosts

graph TD
    subgraph Layer 1
        A["PC"] --> B["EC"]
        C["NIC"] --> D["EonPath"]
        E["HBA 0"] --> F["FC"]
        G["HBA 1"] --> F
        H["HBA 0"] --> F
        I["HBA 1"] --> F
        J["EonPath"] --> K["FC"]
        L["NIC"] --> M["EonPath"]
        N["HBA 0"] --> M
        O["HBA 1"] --> P["FC"]
        Q["EonPath"] --> R["FC"]
        S["HBA 0"] --> R
        T["HBA 1"] --> U["FC"]
        V["EonPath"] --> W["FC"]
    end
    subgraph Layer 2
        X["NIC"] --> Y["EonPath"]
        Z["HBA 0"] --> Y
        AA["HBA 1"] --> Y
        AB["EonPath"] --> AC["FC"]
        AD["HBA 0"] --> AC
        AE["HBA 1"] --> AC
        AF["EonPath"] --> AG["FC"]
        AH["HBA 0"] --> AG
        AI["HBA 1"] --> AJ["FC"]
        AK["EonPath"] --> AL["FC"]
    end
    subgraph Layer 3
        AM["Ch0 FC"] --> AN["FC"]
        AO["CH1 FC"] --> AP["FC"]
        AQ["CH4 iSCSI"] --> AR["FC"]
        AS["CH5 iSCSI"] --> AT["FC"]
        AU["Ethernet"] --> AV["FC"]
    end

When connected to both FC host and iSCSI host, the connections will work in their respective speeds. It maximizes the number of connections while keeping the optimum performance gained by the high speed FC link and FC switch (FC).

NOTE

To gain optimum performance, make sure the LAN switch (1) for the management station (2), the LAN switch for the systems, and the iSCSI switch (3) for iSCSI host link are separated.

Otherwise, the host might consider the iSCSI connection as part of host connection and might use it for data I/O, even if the iSCSI ports are not mapped to the host. As a result, the data transaction speed will slow down to the level of iSCSI connection and the fast FC connection bandwidth will be wasted.

Utilizing Hybrid iSCSI ports for Data Replication

graph TD
    A["RAID RAID"] --> B["Switch"]
    B --> C["Switch"]
    C --> D["ICSI 0"]
    C --> E["ICSI 1"]
    C --> F["ICSI 2"]
    C --> G["LAN"]
    B --> H["Switch"]
    H --> I["ICSI 0"]
    H --> J["ICSI 1"]
    H --> K["ICSI 2"]
    H --> L["FC #1"]
    H --> M["FC #2"]
    H --> N["iSCSI #1"]
    H --> O["iSCSI #2"]
    H --> P["LAN"]

The above diagram demonstrates how to utilize the iSCSI host ports for remote data replication.

The two hybrid systems, a source system (1) and a target system (2) reside within the same virtual pool but are physically apart. You want to create a volume copy/mirror pair for data protection, but do not want to rely on slow management LAN cable connections. In such case, you may link the hybrid systems using iSCSI host ports. If the distances between the enclosures are far, additional iSCSI switches (3) might be required in between.

The illustration above demonstrates how you can enjoy the full benefits of high-speed FC host link and management LAN connection, as well as a robust link for data protection (volume copy/mirror).

The EonOne software suite, on which you configure the volume copy/mirror settings, will automatically detect the iSCSI data connection and will use it for data replication.

JBOD Connections

A SAS host link cable is included per JBOD. If you need to purchase other cables or if you need other cable(s) of different length, please contact your vendor.

WARNING

All SAS cables are sensitive and must be handled with care. To prevent interference within a rack system, the cable routing path must be carefully planned and the cables must not be bent.

Please contact your vendor for a list of compatible components!

JBOD SAS Expansion Configuration

The SAS expansion port connects to expansion JBOD enclosures. For

Dual-Controller systems, each expansion port connects a RAID controller to a corresponding JBOD controller making fault-tolerant links to different SAS domains.

The following principles apply to RAID and JBOD connections:

• Dual-Controller RAID connects to Dual-Controller JBODs.
• Single-Controller RAID connects to Single-Controller JBODs.
• A longer cable is available for making expansion links with a Dual-Controller configuration. A longer cable is required if connections to JBODs are made from two opposite directions. Routing through two different connections can avoid loss of data links if one enclosure fails in between.

There is a rotary ID switch on every expansion enclosure that is manually configured using a flat blade screwdriver.

Configuring enclosure IDs:

Diagram showing a rotary dial with numbered positions and an external remote control panel, illustrating the function of rotation.

- The configurable IDs for JBODs are from 1 to 15. Usually the

numbering starts from the one closest to the managing RAID enclosure.

- Make sure a unique ID is configured on each JBOD so that the SAS WWN addresses of disk drives can be properly assigned. RAID system firmware automatically manages these addresses.

Configuration Rules

How to connect SAS interfaces across RAID and JBOD enclosures:

• Fault-tolerant links in a Dual-Controller combinations: Corresponding to SAS drives' dual-ported interface, two physical links are available from each disk drive, routed across the backplane board, each through a SAS expander, and then interfaced through a 4x wide external SAS port.
• With data paths through separate SAS domains, access to disk drives can be continued in the event of a cable link or SAS JBOD controller failure.

Designation	Description	Designation	Description
1	RAID controller A	5	Dual-ported SAS drives
2	RAID controller B	6	Expander
3	JBOD controller A	7	To another JBOD
4	JBOD controller B

graph TD
    A["①"] --> B["6"]
    C["②"] --> D["6"]
    B --> E["③"]
    D --> F["④"]
    B --> G["⑦"]
    D --> H["⑦"]
    B --> I["⑤"]
    D --> J["⑤"]
    B --> K["..."]
    D --> L["..."]
    B --> M["..."]
    D --> N["..."]
    style B fill:#99ccff,stroke:#333
    style D fill:#99ccff,stroke:#333
    style B fill:#99ccff,stroke:#333
    style D fill:#99ccff,stroke:#333
    style B fill:#99ccff,stroke:#333
    style D fill:#99ccff,stroke:#333
    style B fill:#99ccff,stroke:#333
    style D fill:#99ccff,stroke:#333
    style B stroke:#000,stroke-width:2px
    style D stroke:#000,stroke-width:2px
    style B stroke:#000,stroke-width:2px
    style D stroke:#000,stroke-width:2px
    style B stroke:#000,stroke-width:2px
    style D stroke:#000,stroke-width:2px
    style B stroke:#000,stroke-width:2px
    style D stroke:#000,stroke-width:2px

• Fault-tolerant Links to SAS disk Drives
- SAS expansion cables will be available with the JBODs. Note that if many JBODs are connected, a longer SAS external cable (e.g., a 120cm cable) may be necessary for connecting a JBOD from the opposite direction offering high redundancy.

• One expansion link connects JBODs from RAID to the nearest JBOD, and then to the farthest JBOD. Another expansion link connects to the farthest JBOD from the opposite direction and then to the nearest JBOD.
• Each expander controller on the SAS JBOD controls a “SAS Domain” that connects one of the alternative interfaces on all of the disk drives in the enclosure. For example, one expander unit controls Domain A, and the other controls Domain B. In a fault-tolerant topology, the SAS external links always connect to the SAS ports on the same SAS Domain.
• The SAS Domains can be identified by the expanders' locations, i.e., upper controller slot (Controller A/Slot A) or the lower controller slot (Controller B/Slot B).
• On the RAID system, each RAID controller can be considered as managing a separate SAS Domain. With the help of the port selector mechanism on the MUX boards, the idea of SAS Domain applies even when SATA drives are used in a Dual-Controller JBOD.

Dual-Controller Expansion Connection

• RAID system top left SAS exp. IN -> 1st JBOD top SAS exp. OUT
• RAID system top right SAS exp. IN -> 2nd JBOD top SAS exp. OUT
• 1^st JBOD top SAS exp. IN 3^rd JBOD top SAS exp. OUT
• 2^nd JBOD top SAS exp. IN -> 4^th JBOD top SAS exp. OUT
• 2^nd last JBOD bottom SAS exp. OUT -> Bottom RAID left SAS exp. IN
• Last JBOD bottom SAS exp. OUT -> Bottom RAID right SAS exp. IN

graph TD
    A["Server Rack"] --> B["In Line"]
    A --> C["OutLine"]
    D["JBOD 1"] --> E["JP0"]
    F["JBOD 2"] --> G["JP1"]
    H["JBOD 3"] --> I["JP2"]
    J["JBOD 4"] --> K["JP3"]
    L["JBOD 5"] --> M["JP4"]
    N["Last JBOD"] --> O["JP5"]
    style A fill:#f9f,stroke:#333
    style D fill:#ccf,stroke:#333
    style F fill:#ccf,stroke:#333
    style H fill:#ccf,stroke:#333
    style J fill:#ccf,stroke:#333
    style L fill:#ccf,stroke:#333
    style N fill:#ccf,stroke:#333
    style B fill:#fff,stroke:#333
    style C fill:#fff,stroke:#333
    style G fill:#fff,stroke:#333
    style I fill:#fff,stroke:#333
    style K fill:#fff,stroke:#333
    style M fill:#fff,stroke:#333
    style O fill:#fff,stroke:#333

NOTE

To ensure redundancy, Dual-Controller SAS expansion must be connected to the opposite ends of daisy-chained JBODs (e.g. first JBOD and last JBOD).

Single-Controller Expansion Connections

• RAID system top left SAS exp. IN -> 1st JBOD top SAS exp. OUT
• RAID system top right SAS exp. IN -> 2nd JBOD top SAS exp. OUT
• 1^st JBOD top SAS exp. IN 3^rd JBOD top SAS exp. OUT
• 2^nd JBOD top SAS exp. IN -> 4^th JBOD top SAS exp. OUT

.... and so forth!

graph TD
    A["In In"] --> B["JBOD 1"]
    A --> C["JBOD 2"]
    A --> D["OUTIN"]
    E["JBOD 3"] --> F["JBOD 5"]
    G["JBOD 4"] --> H["JBOD 6"]
    I["JBOD 5"] --> F
    J["JBOD 6"] --> H

Management Console Connections

Designation	Description	Designation	Description
1	Serial port (for Telnet access)	4	Local area network
2	DB9 to mini USB	5	EonOne/ telnet console
3	CAT5e LAN cable

graph TD
    A["Network Equipment"] -->|1| B["Rear"]
    B -->|2| C["Router"]
    C -->|3| D["Rear"]
    D -->|4| E["LAN"]
    E -->|5| F["Router"]

DB9 to mini USB cable management connection

Connecting RAID system to external consoles

Serial port (mini USB): Use the cable supplied with the system to connect to mini USB port. Ethernet port: An Ethernet cable should be supplied by the user.

NOTE

• ALWAYS connect to the primary controller.
• A null modem may be required if you are using a 3 ^rd party cable.

The serial port's defaults are:

Baud Rate	38400
Data Bit	8
Parity	None
Stop Bit	1
Flow Control	Hardware

For TCP/IP connection and firewall configuration please refer to EonOne online help or User's Manual. If your network environment is not running DHCP server protocols, a default IP, <10.10.1.1> can be used if you are accessing for the first time.

Power Connections

Once all hard drives have been properly installed and the I/O ports or management interfaces have been connected, the system can be powered on.

Checklist

BEFORE powering on the system, please check the following:

• Hard drives: Hard drives are correctly installed in the drive trays.
• Drive trays: All the drive trays, whether or not they contain a hard drive, have been installed into the system.
• Cable connections: The system has been correctly connected to host computer(s), management computers, or external networking devices.
• Ambient temperature: Make sure the surrounding environment temperature is not higher 35 degrees Celsius (with CBM).

NOTE

Make sure you use the power cables provided that are at least 1.2 meters in length. DO NOT use extension cables as the power cables are designed to connect ONLY and DIRECTLY to relocatable power taps (RPTs) on server cabinets.

Power Cords Connections

Use the included cables. Connect them to the power sockets (in blue) for all PSUs.

Technical diagram of a circular fan or electrical connector with internal components and mounting points (no text or symbols)

Power On Procedure

Before you power on the RAID system, please power on the expansion enclosure JBOD first if your network configuration has multiple arrays.

To power on the system please follow the procedures below.

Turn on the power switches to the "on" position for every PSUs' power switches (shown in blue).

Technical line drawing of a circular mechanical or electrical component with mounting holes and internal components (no text or symbols)

Front view of a server rack unit with multiple front panels and ports (no visible text or labels)

Power switch location

1. Power on the networking devices, e.g. switches.

2. Power on the host computers. The host computers should be the last devices that are turned on. Please refer to the documentation that came with your host computers to see their power on procedures.

NOTE

Make sure all power supply modules' switches are turned on!

Power On Status Check

As a general rule, once the system has been powered on, there should NOT be LED(s) that light up red / amber nor should you hear an audible alarm from the system. You may verifying system statuses via the following monitoring interfaces:

- LEDs on rear chassis, including controller module, PSUs, and cooling modules (refer to System Monitoring).

Controller LEDs:

1.	Ctrl Status LED: On (green)	3.	C_Dirty LED: Off
2.	CBM Status LED: On (green) or Off (if not installed)	4.	Hst Bsy LED: On (green)

Diagram of an Ethernet rack with labeled ports and connectors, showing numbered connection points.

PSU & Cooling Module LEDs:

PSU LED: On (green)

Green

Power Off Procedure

If you wish to power down the system, please follow these steps:

NOTE

If you wish to power down the system, please ensure that no time-consuming processes, like “Regenerate Logical Drive Parity” or a “Media Scan,” are taking place.

1. Stop I/O access to the system

Close your applications running on the host computers to stop all I/O access to the system.

2. Flush the cache

Locate the C_Dirty LED (refer to Controller LED for RAID Models) on the controller module to check if there is still cached data in the DRAM (if the LED is lid up in amber).

1. Use the Shutdown Controller function to flush all cached data (please refer to the EonOne manual)
2. Once the cache has been flushed, you may proceed to power down the system.

System Monitoring

The EonStor GS series is equipped with a variety of self-monitoring features that help keep system managers aware of system operation statuses.

Monitoring Features

You may monitor the system through the following features:

- Firmware: The RAID controller in the system is managed by a pre-installed firmware, which is accessible in a terminal program via the serial port. For more details, see the Firmware manual in the CD-ROM.

Sat Nov 24 14:25:22 2007 Cache Status: Clean EXIT MENU Quick Installation view and edit Logical drives view and edit Logical Volumes view and edit Host luns view and edit Drives view and edit channels view and edit Configuration parameters view and edit Peripheral devices View Peripheral Device Status Set Peripheral Devices Entry Adjust LCD Contrast Controller Peripheral ITEM STATUS LOCATION I2C Peripheral Device Operational Device SET ID Power Supply Cooling Fan Temperature Sensor Voltage Sensor Drive Failure Output Definition Device Set Descriptor

SAT NOV 24 14:30:56 2007 Cache Status: Clean BAT: NONE < Main Menu > Quick installation view and edit Logical drives view and edit Logical Volumes view and edit Host luns view and edit Drives view and edit channels view and edit Configuration parameters view and edit Peripheral devices View Peripheral Device Status Set Peripheral Device Entry Adjust LCD Contrast Controller Peripheral Device Configuration View Peripheral Device Status Voltage and Temperature Parameters ITEM VALUE STATUS +3.3V Value 3.384 V Operation Normal +5V Value 5.099 V Operation Normal +12V Value 12.564 V Operation Normal CPU Temp Sensor 51.5 (C) within Safe Range Board1 Temp Sensor 37.0 (C) within Safe Range Board2 Temp Sensor 40.5 (C) within Safe Range

- EonOne: EonOne is a browser-based Graphical User Interface (GUI) that can to monitor and manage the system locally or remotely over

TCP/IP network, via the Ethernet Management port. The management session is conducted using the Ethernet management port. For more details, see the EonOne manual in the CD-ROM.

- LEDs: LED indicators notify users of system status, events, and failures. LEDs are located on both the front and rear panel of the chassis. For details, see and subsequent sections.

- Audible alarm: Audible alarm will be triggered in case of system failures. For details, see PSU / Cooling Module LEDs.

LED Panel

1 2 3 4 5 6 Service

RAID System

Name	Color	Status
1. Service	White	White indicates that the system is being serviced or is requiring services.OFF indicates that the system is not being serviced nor is requiring services.
2. Power	Green/Amber	Green indicates that the system is powered properly.Amber indicates that there is a power failure in the system.
3. Cooling fan	Green/Amber	Green indicates that the cooling fan is operating properly.Amber indicates that the there is a cooling fan failure in the system.
4. Thermal	Green/Amber	Green indicates that the internal temperature is within the safety threshold.Amber indicates that the internal temperature has gone over the safety threshold.
5. System fault	Green/Amber	Green indicates that the system is operating normally.Amber indicates that the system has encountered abnormal conditions:
6. Mute/ service button	N/A	Pressing less than one second mutes the audible alarm.Pressing more than two seconds sends a service notification to the host computer.

When lid amber to indicate failure, please check the corresponding module(s). For example, if the Thermal LED lights up amber, please check if there are faults on the system cooling modules (built within the PSU) or the drawer fans.

Drive Tray LED

Two LED indicators are located on the right side of each drive tray or at the bottom of the front panel of a SFF (Small Form Factor) enclosure (2.5 inch hard drive trays). When notified by a drive failure message, you should check the drive tray indicators to find the correct location of the failed drive.

① ② ③

3.5 inch

1 2 3

2.5 inch

Name	Color	Status
2. Drive Busy	Blue	Flashing Blue indicates data is being written to or read from the drive. The drive is busy.Steady Blue indicates that a hard drive is plugged-in but there is no activity on the disk drive.
3. Power Status	Green / Red	Green indicates that the drive bay is populated and is working normally.RED indicates that the disk drive has failed, or a connection problem occurred.

Controller LED

Controller LED for RAID Models

Diagram of an internal network device with labeled ports and connectors, showing numbered annotations for identification.

Name	Color	Status
1. Ctrl Status	Green/Amber	Green indicates that a RAID controller is operating healthily.Amber indicates that a component failure has occurred, or inappropriate RAID configurations have caused system faults. It is also lit during the initialization process.
2. CBM Status	Green/Amber	Green steady on indicates the CBM module is ready. Both a BBU and flash modules are present.Amber steady on indicates CBM failure, meaning either super capacitor or flash has failed. When lit, it also indicates either super capacitor or a flash is missing.Blinking means the super capacitor is being charged.
3. C_Dirty	Amber	Amber indicates the following:- Cache Memory is dirty.- Data in flash backup module is being flushed to cache.- Errors occurred with cache memory (ECC errors).- Data is being flushed from flash backup module todrive (when power is restored).- Super capacitor temperature reading is abnormal (out of the 0 to 35°C range).- Super capacitor is not present.OFF indicates that the cache is clean, and that the Super capacitor is capable of sustaining memory in case of power loss.Blinking Amber indicates cached data is being transferred to the flash module after the occurrence of a power outage. Once the transfer is done, all LEDs will turn off.This signal is local to each controller.
4. Hst Bsy	Green	Blinking Green to indicate traffic on the host bus.

Controller LED for 12 Gb/s SAS JBOD Models

Link Speed OUT 12 8 A 3

Name	Color	Status
Link	Green	Steady green indicates all 4 PHYs are validly linked to external devices.Blinking green indicates one of the 4 PHYs links has failed.OFF indicates all 4 PHYs are offline.
Speed	Green / Amber	Green indicates 12Gbps link speed.Amber indicates 6 / 3Gbps link speed.OFF indicates no connection.
	Green / Amber	Green indicates the controller is operating normally.Amber indicates a component failure has occurred.It is also lit during the initialization process.

iSCSI / Ethernet Management Port LEDs

Technical diagram of an electronic device with labeled components and highlighted areas

Name	Status	Status
1. Speed status LED	Green	Green indicates 1Gb connection established.
	Off	Off indicates 10/100Mb connection established or no connection established.
2. Link / activity	Amber	Steady amber indicates a connection has been established.Flashing amber indicates data I/O.
		Off indicates connection not established.

NOTE

The Ethernet management port supports only 100Mbs and 1000Mbs (1Gbs) speeds.

10 Gb iSCSI Host Port LEDs (Fibre)

CH0 CH1

LED status	Color	Status
Steady ON	Green	Steady green indicates a link has been established.
Flashing	Green	Flashing green indicates an active link.
Off	Off	Off indicates a link has not been established.

10 Gb iSCSI Host Port LEDs (RJ45)

1 2

No.	Item	Status
1.	Speed LED	Green indicates 10Gb connection establishedAmber indicates 1Gb connection establishedOff indicates 10/100 connection established
2.	Link Status LED	Green indicates connection establishedFlashing green indicates data activityOff indicates connection not established

8 Gb Fibre-Host Port LEDs

① ②

Each controller module houses Fibre channel host ports. Each of these ports has two LEDs for displaying the operating status.

Name	Color	Status
1. Link	Green	Green indicates an established link, Off means a link is broken.
2. 8/4/2G	Green / Amber / Off	Green indicates 8Gbps connection.
		Amber indicates 4Gbps connection.
		OFF indicates 2Gbps speed or no connection.

For systems that come with 8 Gb Fibre channel host ports. They deliver fast I/O performance for Storage Area Network (SAN) applications. Optical cables can be used over distances and have been shown to be more reliable. Due to the demands of high transfer rates, optical cables are preferred for 8/4Gbps fiber connectivity. Optical cables are not susceptible to EMI.

16 Gb Fibre Channel Host Port LEDs

1 2

No.	Item	Status
1.	Link Status LED	Green indicates connection establishedFlashing green indicates data activityOff indicates connection not established
2.	Speed LED	Green indicates 16Gb connection establishedYellow indicates 8Gb connection establishedOff indicates 4Gb or slower connection established

6G SAS-Host Port LEDs

graph TD
    A["Component ①"] --> B["Central Unit"]
    C["Component ②"] --> B
    B --> D["Output"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333

Name	Color	Status
1. SAS Link Status	Green	Steady Green indicates that all 4 PHYs are validly linked to external devices.
		Blinking indicates less than 4 PHYs links are connected (at least one 1 of the 4 PHYs links has failed).
		OFF indicates all 4 PHYs links are offline.
2. SAS Speed Status	Green / Amber	Green indicates a 6Gbps link.
		Amber indicates a 3Gbps link.
		OFF indicates that there is no connection.

12G SAS-Host Port LEDs

graph TD
    A["Server Rack"] -->|1| B["Central Unit"]
    A -->|2| C["Grid Layout"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333

Name	Color	Status
1. SAS Link Status	Green	Steady Green indicates that all 4 PHYs are validly linked to external devices.
		Blinking indicates less than 4 PHY links are connected (at least one 1 of the 4 PHYs links has failed).
		OFF indicates all 4 PHYs links are offline.
2. SAS Speed Status	Green / Amber	Green indicates a 12Gbps link connection.
		Amber indicates a 6Gbps link connection.
		OFF indicates a 3Gbps link connection or there is no connection.

PSU & Built-in Cooling Module LEDs

The PSU (Power Supply Unit) contains the LEDs for the PSU and the cooling module statuses. When either of the unit fails, you need to replace the PSU as soon as possible. For details, please refer to Replacing the Power Supply Module.

Technical line drawing of a circular fan or vent with internal components and mounting points (no text or symbols)

Technical line drawing of a mechanical component with mounting holes and a green circular detail (no text or symbols)

PSU & Cooling Module Status LED

Status	Description
Flashing (Green)	The system is connected to power supply but the power switch has not turned on.
On (Green)	The PSU / cooling module is operating normally.
On (Red)	The PSU / cooling module is faulty.

WARNING

HAZARDOUS MOVING PARTS!

KEEP FINGERS AND OTHER BODY PARTS AWAY!

Alarms and I2C Bus

Other monitoring schemes include audible alarms and I²C bus.

Audible Alarms

If any of the following components fails, the audible alarm will be triggered:

• Cooling fan modules
• PSU modules
• CBM module
• Hard disk drives

- Sensors or presence detection circuitries

If an alarm rings out, the administrator must read the error message on the terminal or EonOne screen to determine what has triggered the alarm, and then take appropriate actions to rectify the problem. The alarm can be turned off using the mute button on the front panel and the Alarm beep pattern is described in the Troubleshooting Guide included in the CD-ROM.

NOTE

When temperature exceeds a preset threshold, the controller's charger circuits will stop charging. You will then receive a message that reads "Thermal Shutdown/Enter Sleep Mode." When the temperature falls back within normal range, the super capacitor will resume charging.

I^2C

The operating status of PSU and cooling fan modules are collected through an I ^2 C serial bus. If either of those modules fails, the failure will be detected and you will be notified through the same methods as in the audible alarms.

Restoring Default System Settings

NOTE

Restoring default settings is a last-resort function. All configurations, such as parameters and host LUN mappings, will be erased.

You may need to restore default settings in the following cases:

• When the firmware update procedure requires it.
• When you need to reset the password to access the RAID system.

Restoring Default Settings

To restore default settings for Dual-Controller models, follow these steps.

1. Stop all host I/Os.
2. Save the current configuration using the "Export NVRAM" function.
3. You may also want to make a list of the existing ID/LUN mapping information because the default restoration will erase the ID/LUN mapping associations (e.g., which logical drive is associated with which host ID/LUN)
4. Remove Controller B from the chassis. Please refer to Removing the RAID Controller.
5. Power off the RAID system.
6. Press and hold the Restore Default button on Controller A. You may use a straightened paper clip to press the button. While pressing the Restore Default button down, power on the RAID system.
7. When the "Restore Def." LED (indicated by the black arrow) lights up and the "Default Restored" firmware event message appear, you may release the Restore Default button (the system default has been restored).
8. Restore previous settings using the "Import NVRAM from reserve space" or "Restore NVRAM from Files" in the firmware. ID/LUN mapping will be restored.
   *The Single-Controller system's restore default procedure is complete and for Dual-Controller systems, please continue with the following procedures.

9. Power off the system.

10. Replace Controller A with Controller B (Controller B will be inserted into Controller A's slot) While leaving Controller B slot empty with Controller B in slot A, perform the above steps 1 to 8 to restore Controller B to default settings.

11. Put both Controller A and Controller B into their original positions and power up the system.

System Maintenance

WARNING

Do not remove a failed component from the system until you have a replacement on hand. If you remove a failed component without immediate replacement, it will disrupt the internal airflow.

Qualified engineers who are familiar with the system should be the only ones who make component replacements.

When inserting a removable module, do not use excessive force. Forcing or slamming a module can damage the connector pins either on the module itself or on the backplane.

The following components can be replaced:

• Controller module (please refer to Replacing the Controller Module)
• Memory module (please refer to Replacing the Memory Module for RAID Models)
• CBM module (please refer to Replacing the CBM for RAID Models)
• Host board (please refer to Replacing the Controller Host Board)
• PSU module (please refer to Replacing the Power Supply Module)
• Hard drive (please refer to Replacing the Hard Disk Drive)

Replacing the Controller Module(s): Single / Dual /

Simultaneous Upgrade

WARNING

Controller firmware MUST be identical for proper functionality.

DO NOT mix controller modules from different models. Each controller has a unique ID which is applied to host port names. As the result, you may encounter SAN problems with identical port names on multiple systems.

When removing a RAID controller from a Single-Controller system, ensure that your applications have been shut down beforehand.

Controller firmware MUST match so before you replace a controller in a dual-controller system, please check if the firmware of the operational controller matches the replacement controller sent to you. The replacement controller sent to you will state its firmware version with a label on the packaging. To find out the firmware version of your operating controller, use Storage Manager > Information > Enclosure View in EonOne (please refer to the EonOne Manual for details).

To update the firmware, please refer to the following:

a. EonStor GS EonOne User Manual on Upgrading the Firmware
b. Firmware Manual on System Functions: Upgrading Firmware

1. Prepare a clean, static-free work pad or container to place the controller.

2. (Replacing Single-Controller models or both controllers simultaneously)

Shut the system down. Stop all I/O access to the system and make sure all cached writes have been distributed to disk drives using firmware's Main Menu -> System Functions > Shutdown controller function. Power off the system and turn off the power switches and unplug the power cords from PSUs.

Thu Nov 29 22:25:16 2007 Cache Status: Clean BAT: NONE < Main Menu > Quick installation view and edit Logical drives view and edit Logical Volumes view and edit Host luns view and edit Drives view and edit channels view and edit Configuration parameters view and edit Peripheral devices system Functions Mute beeper change Password Reset controller Shutdown controller Controller maintenance Arrow Keys:Move Cursor Enter:Select Esc:Exit Ctrl+L:Refresh Screen

1. Disconnect all cables that are connected to the controller module.

2. Loosen the screw that secures the control module's ejection levers.

Technical diagram of a mechanical device with labeled components and a tool, showing alignment and measurement lines.

1. Push the ejection levers downwards (indicated by the blue arrows). The controller module will automatically ease out of the controller module bay.

Pure technical diagram of a mechanical or electrical component with no text, numbers, or symbols

1. Insert the new controller module. Carefully push the controller until you feel the contact resistance when the board edge connectors are engaging the backplane. Push the ejection levers upward (indicated by the blue arrows) and fasten the retention screw on the ejection levers.

Technical line drawing of an internal computer drive chassis showing fan and power connections (no text or labels)

1. Reattach all the cables.

2. For Single-Controller models or when replacing both controllers simultaneously, power up the system. Check system message on the LCD screen, EonOne, or firmware menu-driven utility. When the replacement controller is successfully brought online, the Power On Status LEDs should turn on properly.

3. For Single-Controller models or replacing both controllers simultaneously, Restoring NVRAM data. To restore previous ID/LUN mapping settings, users may use the following options:

- Use the "Restore NVRAM from Disks" or "Restore NVRAM from Files" functions in the firmware. ID/LUN mapping will be restored.

Replacing the Host Board

To replace the existing host board, loosen the thumb screw and push the release lever to detach the host board from the controller.

Technical line drawing of an electronic device with multiple ports and connectors (no text or symbols)

Thumb screw

Technical diagram of an electronic device showing internal components and a close-up view with a blue arrow indicating a component (no text or labels present)

Release lever

By holding onto the edges of the PCB and using the guide pin (shown below in blue) for positioning, lower the replacement host board into the controller. Tighten the thumb screw to complete the installation. Reinsert the controller back into the system.

Technical line drawing of an electronic device chassis with multiple ports and connectors (no text or symbols)

Replacing the Memory Module on RAID Systems

The RAID controller comes with pre-installed DRAM module(s). You may upgrade it or replace it when the original module malfunctions (shown as the "NVRAM failure" event in EonOne). If you have two modules installed, please identify correctly which one has failed before proceeding with the replacement procedure!

WARNING

If you are installing only one or replacing just one DRAM module, with the I/O ports pointing at you, always install to the DRAM slot on the right (blue slot).

Follow the ESD Precautions (refer to ESD Precautions).

Contact your system vendor for selecting a compatible DRAM module.

Reusing the DRAM module removed from a failed controller is not recommended unless you have a similar RAID system to test its integrity.

Installing the DIMM Module

1. Remove the controller module (refer to Replacing the Controller Module).
2. Wait for one minute for the remaining electricity on the main board to disperse.
3. Push down the clips on the sides of the DIMM socket (indicated by the blue circle). The DIMM will eject automatically from the socket.

Diagram of a mechanical component with directional arrows indicating motion (no text or symbols)

1. Insert the replacement module. Make sure the side clips are in the open positions. Align the DIMM module with the socket and firmly push the DIMM module into the socket. The side clips will close automatically and secure the DIMM module into the socket.

Diagram of a mechanical assembly with rotating components and directional arrows indicating motion (no text or symbols)

1. (If applicable) Reinstall the BBU module (refer to Replacing the BBU).

2. Reinstall the controller module into the chassis (refer to Replacing the Controller Module).

Replacing the CBM for RAID Models

WARNING

Make sure you have the replacement module(s) on-hand before you attempt to replace the CBM.

Replacing the Flash Backup Module

Upgradeable / replaceable component is listed below:

- Flash Backup Module (FBM): In the event of a power failure, the combination of super capacitor + FBM (non-volatile flash storage) can store the data, indefinitely.

WARNING

Make sure you have the replacement module(s) on-hand before you attempt the replacement procedure.

Make sure the flash backup module has been installed before installing the super capacitor. Please refer to procedures mentioned in Installing the BBU section.

The super capacitor and flash backup module can sustain and transfer cached data to a flash backup module in the event of a power outage or in the unlikely event of both PSUs failing for permanent storage.

The super capacitor and flash backup module might be optional for some models and in various sales regions.

Super Capacitor Fault Conditions and Precautions

If a super capacitor leaks, gives off a bad odor, generates heat, becomes discolored or deformed, or in any way appears abnormal during use, recharging or storage, immediately remove it from the system and stop using it. Here are some of the conditions that might trigger super capacitor fault.

• The temperature sensor on the system's charger circuit reports a temperature reading exceeding the pre-set threshold. The charger circuits will enter a low-power and self-protection state.
• A super capacitor module has been charged for more than 10 minutes. A timer is embedded with the charger. When this occurs, the charger will enter a timer fault state. Charging will resume automatically after you remove/re-install the super capacitor module or reset the system.

Follow these precautions when you install the super capacitor.

• Use the replacement super capacitor supplied by your distributor. Use of capacitors provided otherwise will void your warranty.
• Dispose of used super capacitor at authorized battery disposal sites only.
• Do not place a super capacitor near a heat source.
• Do not immerse the super capacitor in water or expose it to other forms of liquids.
• Do not disassemble or modify the super capacitor.
• Do not pierce the super capacitor with a sharp object, strike it with a hammer, exert pressure on it, or throw it.

Replacing Flash Backup Module (coupled with SuperCap)

Up to two flash backup modules can be installed. If there are two host boards installed, to gain access to the FBMs will require the user to remove the second host board. Once the second host board has been removed, please read the following instructions to replace the flash backup module:

1. Remove the controller module (refer to Replacing the Controller Module).

2. Loosen the screw at the end of flash backup module and remove the flash backup module.

Technical line drawing of an electronic device internal structure, showing top and side views with no visible text or symbols.

1. Insert the replacement flash backup module on a 45 degree angle, gently lower the other end of the SSD and secure it with the original screw.

SSD

Replacing the Power Supply Module / Cooling Module

The power supply units (PSU) are configured in a redundant configuration with each PSU housed in a robust steel canister.

Detecting a Failed PSU

If a PSU module fails, the system notifies you through the following indicators:

• PSU status LED locations

Technical line drawing of a mechanical fan or electrical component with no visible text or symbols

• Audible alarm (refer to Audible Alarms)
- Firmware utility (refer to Firmware User Manual in the CD-ROM for details)
- EonOne manager software (refer to EonOne User Manual in the CD-ROM for details)

Replacing Power Supply Unit

A failed PSU should be replaced as soon as possible, but only when you have a replacement module in your hand. Contact your vendor for more details (refer to Contact Information).

WARNING

Although the system can operate with a failed PSU in a system, it is not recommended to run the system with a failed PSU for an extended period of time. The failed spare redundant PSU should be replaced as soon as possible!

To replace a PSU, follow these steps:

1. Unplug the power cord, turn the switch to the off position.

Technical line drawing of a fan or fan assembly with mounting holes and internal components (no text or symbols)

1. Loosen the retention screw that secures the extraction handle to the chassis.

Technical line drawing of a circular fan or fan assembly with mounting bracket and control panel (no text or symbols)

1. To remove the PSU module, pull the extraction handle downwards to disconnect the PSU from the backplane connectors. Once dislodged, gently pull the PSU out of the system. If the system is mounted in a rackmount rack, use another hand to support its weight while removing the module.

Technical line drawing of a computer power supply unit with visible internal components and mounting holes (no text or symbols)

1. Insert the replacement module. Make sure the extraction handle is pointing outwards. Push the replacement PSU into the chassis, and when you feel the contact resistance, push the extraction handle towards the PSU module and it should engage the back-end connectors.

Technical line drawing of a server rack with ventilation fans and drive bays (no text or symbols)

1. Fasten the thumb screw.
2. Reconnect the power cord.
3. Power on the PSU module.

NOTE:

Should a cooling fan fail within a PSU, the whole PSU module will need to be replaced! For PSU cooling fan IDs, please refer to this section.

Replacing a Hard Drive

WARNING

Keep a replacement on hand before replacing the hard drive. Do not leave the drive tray open for an extended period of time or the internal airflow will be disrupted.

Handle the hard drives with extreme care. Carry them only by the edges and avoid touching their circuits part and interface connectors.

To replace a hard drive, follow these steps.

1. Identify the drive tray. Use the firmware utility, EonOne, or the LED on the drive tray to identify faulty hard drive(s). The drive bays are numbered from left to right and from top to bottom.

2. Open the drive tray. Press the button. The spring handle will pop out.

Illustration of a hand holding a device with a sensor icon, no text or symbols present

1. Remove the drive tray. Pull the tray one inch away from the enclosure. Wait for at least 30 seconds for the disk drive to spin down, and then gently withdraw the drive tray from the chassis.

2. Remove four retention screws (two on each side). The screws secure the hard drive to the drive tray.

2.5 inch SATA HDD 2.5 inch SAS HDD 2.5 inch SATA HDD 2.5 inch SAS HDD

3.5 inch HDD tray

2.5 inch SATA HDD 2.5 inch SAS HDD 2.5 inch SAS HDD 2.5 inch SATA HDD

2.5 inch HDD tray

1. Replace the drive. After swapping the drive, fasten the retention screws back. Refer to screw locations in the previous step.

2. Insert the drive tray back into the enclosure. Install the drive tray with the front bezel open. When fully inserted, close the front bezel.

Technical line drawing of a server rack with multiple drive bays and mounting hardware (no text or symbols)

3.5 inch

Technical line drawing of a device rear panel with internal components and mounting holes (no text or symbols)

2.5 inch

1. Check for drive error. Make sure that there is no more error reported.

NOTE

The picture showing the installation of the hard drive might show a different design of the HDD tray than the HDD tray you currently use. The general procedure to install the tray is the same.

Appendix

Technical Specifications

Host Board Interface

Fibre/iSCSI hybrid-host RAID models
Host Interface	8Gbps / 16Gbps Fibre
Drive Interface / channel	Supports 12 / 16 / 24 channels of 3 / 6 / 12 Gbps SAS, SATA-II/SATA-III,Near-line SAS series
Host Interface	8Gbps / 16Gbps Fibre + 2iSCSI (onboard)
SAS/iSCSI hybrid-host RAID models
Host O/S Compatibility	Host O/S independent
Host Interface	3Gbps / 6Gbps / 12Gbps Multi-lane SAS
Host Channels	Multiple SAS PHYs logically combined into 2 host channels per controller
Drive Interface / channel	Supports 12 / 16 / 24 channels of 3 / 6 / 12 Gbps SAS, SATA-II/SATA-III,Near-line SAS series
iSCSI-host RAID models
Host O/S Compatibility	Host O/S independent / iSCSI offload utilities and hardware
Host Interface	RJ-45 Gigabit Ethernet / RJ-45 10Gb Ethernet / 10Gb FCOE
Drive Interface / channel	Supports 12 / 16 / 24 channels of 3 / 6 / 12 Gbps SAS, SATA-II/SATA-III,Near-line SAS series
JBOD models
SAS Interface	Eight SMP PHYs interfaced through two / three 12Gb SAS ports
Drive Interface / channel	Supports up to 12 / 16 / 24 / 60 channels of 3 / 6 / 12 Gbps SAS,SATA-II/SATA-III, Near-line series

*Host board interface and specifications are subject to change without prior notice. For the latest specifications and information, please refer to the official EonStor GS website.

RAID Configurations for RAID Models

RAID Levels	0, 1(0 + 1), 3, 5, 6, 10, 30, 50, 60, and non-RAID disk spanning
Cache Mode	All drive channels are pre-configured and cannot be changed
Cache Memory	Write-through, write-back, and adaptive write policy
Number of LUNs	Pre-installed DRAM module with ECC, registered; in two DIMM sockets
Multiple Target IDs/Host Channel	Up to 32 per host ID, for a total of 1024 on all host channels
Aliases for Target IDs	Yes
Firmware on Flash Memory	Yes
DIMM Slot	Two DRAM module slot(s)
Hardware XOR	Yes
Real-time Clock	For event messages with time record and task scheduling
Configuration	Text-based firmware-embedded utility over RS-232C through the serial cableTelnet via an established network connectionThe EonOne Manager program using in-band or Ethernet connection
Performance Monitoring	Yes
Remote Control and Monitoring	Yes
Event Broadcast/Alert	Yes, via Java-based EonOne Manager
Event Notification	Yes, via the EonOne manager
Hardware Connection	In-band over Fibre, SAS, or other host link types, out-of-band via Ethernet or RS-232C
Configuration on Disk	Configuration data stored on disks so that logical drive assemblies exist after controller replacement.
Failure Indicator	Faults are indicated via alarm, module LED indicators, LCD panel, EonOne Manager, or terminal emulation.

Fault Tolerance for RAID models

Drive S.M.A.R.T Support	Yes, with user-configurable detect-only, clone and replace, and perpetual clone functions.
CBM (Cache Backup Module)	Yes (R models only, optional accessory for Single-Controller models)
ISEMS (Infortrend Simple Enclosure Management Service) via I^2C interface	Yes
Automatic Drive Failure Detection	Yes
Automatic Rebuild on Spare Drives	Yes
Regenerate Logical Drive Parity	Yes
Bad Block Reassignment	Yes
Manual and Automatic Rebuild upon Failed Drive Replacement	Yes
Manual Clone of Suspected Failed Drive	Yes
Concurrent Rebuild on Multiple Drives in a RAID (0 + 1) Logical Drive	Yes
Salvage the 2^nd Temporary Failed Drive in a RAID 1, 3, 5 or 6 Logical Drive	Yes
Salvage the 1^st Temporary Failed Drive in a RAID 0 Logical Drive	Yes

Power Supply

Input Voltage	Dual-Controller model:100VAC @ 10A240VAC @ 5A with PFC (auto-switching)
	Single-Controller model:100VAC @ 10A240VAC @ 5A with PFC (auto-switching)
Frequency	50 to 60Hz
Power rating	530W
DC Output	12.0V: 38A (Max.)5.0VSB: 2A (Max.)
Input Frequency	50 to 60Hz
AC Input	100VAC @ 10A or 240VAC @ 5A with PFC
Power Factor Correction	Yes
Hold-up Time	At least 12ms at 115/230VAC full load after a loss of AC input
Over-temperature Protection	Auto shutdown when lost cooling or exceeded ambient temperature;over-voltage protection is also available.

*PSU specifications described above are general measurements and do not represent all models. For details, please refer to specific model specifications.

Dimensions

2U series

Dimensions	Without chassis ears & protrusions
Height	88mm
Width	446mm
Length	514mm

3U series

Dimensions	Without chassis ears & protrusions
Height	130mm
Width	445mm
Length	514.04mm

Environment

Humidity	5 to 95% (non condensing – operating and non-operating)
Temperature	Operating:a. With Cache Backup Module 0^ to 35^ b. Without Cache Backup Module 0^ to 40^ Non-operating: -40^ to 60^
Altitude	Operating: Sea level to 12,000ftPackaged: Sea level to 40,000ft
Shock (Half-sine)	Operating: 5G, half-sine, 11ms pulse widthNon-operating: 15G, half-sine, 11ms pulse width
Vibration	(Random)Operating: 5 to 500Hz, 0.25Grms, X/Y/Z, 30minNon-operating: 5 to 500Hz, 1.0Grms, X/Y/Z, 30min(Sine)Operating: 5 to 500Hz, 0.2Grms, X/Y/Z Sine, 1hr/sweepNon-operating: 5 to 500Hz, 1.0Grms, X/Y/Z Sine, 1hr/sweep
Acoustic Noise	65dBA boundary, 60dBA normal

Certifications

Summary

Safety	UL (60950-1 2'nd)BSMI CNS 14336: 2005CB IEC 60950-1, 2'nd EditionGOST-R GOST R 60950-1-2005
EMC	CE EN 55022: 2006/A1:2007 / EN 61000-3-2: 2006 / EN61000-3-3: 1995/A1: 2001 /A2: 2005 / EN 55024: 1998/A1:2001/A2: 2003IEC 61000-4-2:1995/A2:2000IEC 61000-4-3:1995/A2:2006IEC 61000-4-4:2004IEC 61000-4-5:2005IEC 61000-4-6:2003/A1:2004/A2:2006IEC 61000-4-8:1993/A1:2000,IEC 61000-4-11: 2004IEC 61000-3-2, IEC61000-3-3BSMI (CNS 13438)FCC (FCC Part 15,subpart B )
Environment	IEC 60068-2MIL-STD-810E/883EISTAASTM-D3332IPC-TM-650
Others	ISO7779/3744RoHSMicrosoft WHQL-Windows Server 2003

警告使用者：

The table is categorized into model numbers in alphabetical / numeric order so users can fast locate the corresponding slide rail kit for their respective enclosure.

Slide Rail Kits

If you are unable to locate clear instructions on installing your enclosure, please contact Technical Support!

Enclosure Installation Prerequisites

To ensure proper installation and functionality of the RAID system, please observe the following warnings:

• Cross check all components have been received against the "Unpacking List". Contact your vendor immediately if anything is missing
• Install the enclosure as-is out of the packaging; install hard drives and optional modules (FBM / super capacitor) after the enclosure has been mounted
• Wear an anti-static wristband before and during the installation procedure
• It is recommended to plug the system into two different power sources (e.g. into a power outlet and another into a UPS)
• Ensure the rack which the enclosure will be mounted onto has proper grounding and over-current protection
• Do not obstruct ventilation openings; provide 20cm of free space at the front and back of the enclosure for air circulation; keep the ambient temperature below 35 degrees Celsius

Unpacking the System

Use the "Unpacking List" to cross check all components have been received. The basic contents include one GUI CD pack, Quick Installation Guide and RAID Enclosure Installation Guide. For details on each slide rail kit contents, please refer to specific kit installation details in this manual.

Component Installation Procedure

Please install components in the following order:

1. Rackmount rails onto the enclosure / rack / cabinet
2. Enclosure onto the slide rail and into the cabinet
3. Hard drives into drive trays and then into the enclosure.
4. Drive trays (with or without hard drives) into the enclosure
5. If super capacitor / FBM were purchased as an optional component, the controller must be removed from the enclosure for installation.

NOTE

For detail procedures from step 3 and onwards, please refer to the earlier sections in this hardware manual.

Tools Required

For each of the slide rail installation procedures, you will need the following tools:

• One medium sized Phillips screwdriver
• One small sized Phillips screwdriver
• One medium size flat blade screwdriver

Rackmount Slide Rail Kits

Rack Ear Mount Kit

The following table shows all accessories that came with the rack ear mount kit.

Kit Contents

Item	Description	Quantity
01	Mounting bracket assembly, left-side	1
02	Mounting bracket assembly, right-side	1
03	Hexagon washer screws #6-32mm	8
04	Truss head screws M5 x 9.0mm	4
05	M5 cage nuts	4
06	M5 x 25mm	4
07	M6 x 25mm	4
08	#10-32 x 25.4mm	4

Technical line drawing of two parallel metal beams with flanges, labeled ① and ② (no text or symbols on the beams themselves)

③
④
5

⑥7 8

Installation Procedure

1. The installation begins with determining the installation position and M5 cage nut (5) insertion location.

graph TD
    A["Unit boundary"] --> B["3U"]
    B --> C["2U"]
    C --> D["1U"]
    D --> E["Unit boundary"]
    F["Unit boundary"] --> G["1"]
    G --> H["2"]
    H --> I["3"]
    I --> J["4"]
    J --> K["5"]
    K --> L["6"]
    L --> M["7"]
    M --> N["8"]
    N --> O["9"]
    P["3/4U, M5 cage nut position"] --> Q["05"]
    R["2U, M5 cage nut position"] --> S["05"]

Rear rack posts

3U 1 2 3 4 2U 5 6 7 1U 8 9 ①04 M5 x 9.0mm

1. Install the fixed rack ear mount to the rear posts and secure them using truss head screws (4)

M5 x 9.0mm ④

1. With the assistance of another person holding the enclosure at the installation height, the other person can place two M5 x 25mm (7) at the front of the enclosure and eight #6-32 screws (3), four on each side, to secure the enclosure into the rack.

③ #6-32 ⑦ M5 x 25mm ⑦ M5 x 25mm

Slide Rail Kit

The following table shows all accessories that came with the slide rail kit.

Kit Contents

Item	Description	Quantity
01	Mounting bracket assembly, left-side	1
02	Mounting bracket assembly, right-side	1
03	Inner glides	2
04	Flathead screws #6-32 L4	6
05	Truss head screws M5 x9.0mm	8
06	M5 cage nuts	4
07	M5 x 25mm	4
08	M6 x 25mm	4
09	#10-32 x 25.4mm	4

1. The installation begins with determining the installation position (front and rear rack positions) and M5 cage nut (5) insertion location.

graph TD
    A["Unit boundary"] --> B["3U"]
    B --> C["2U"]
    C --> D["1U"]
    D --> E["Unit boundary"]
    F["Unit boundary"] --> G["3/4U, M5 cage nut position"]
    H["Unit boundary"] --> I["2U, M5 cage nut position"]
    J["Unit boundary"] --> K["3/4U, M5 cage nut position"]
    L["Unit boundary"] --> M["2U, M5 cage nut position"]

Rear rack posts

3U 1 2 3 4 2U 5 6 7 1U 8 9 M5 x 9.0mm

1. Adjust the length by loosening the four screws on the slide rail. Secure the slide rails to front and rear posts using truss head screws. Tighten the four screws on the slide to fix the length.

M5 x 9.0mm Inner glide rail M5 x 9.0mm

1. Attach the inner glides to BOTH sides of the enclosure using flathead screws #6-32 (8)

08 #6-32

1. With the assistance of another person, lift and insert the enclosure onto the slide rail. Make sure the inner glides on both sides of the enclosure meets the inner glide rail. Secure the enclosure with M5 or M6 screws from the front.

2. To insert the enclosure into the rack, with at least three people lifting the enclosure, align the end of the enclosure slide rail to the opening of the rack slide rail and gently insert it into the rack. You should hear a "click" sound when the enclosure slide rail engages the rack slide rail at the release lever.

3. From here, to fully insert the enclosure into the rack, place your left index finger on the left release lever and push downwards; place your right index finger under the right release lever and push upwards to allow the slide rail to fully retract back into the rack.

Diagram illustrating the step-by-step assembly of a mechanical component, showing hand positioning and adjustment with arrows.

1. Secure the system enclosure onto the rack post by opening the side chassis ears to expose the screw-holes, secure using two 20mm screws and cage nuts from the accessory box as shown in the illustration below.

Technical diagram of a mechanical assembly with labeled components and directional arrows indicating motion or assembly.

Once Mounted

Once the enclosure has been mounted, you may refer to the User's Manual that came with your system for further instructions on completing the hardware installation process. The User's Manual will go on to explain details on installation / maintenance of hard drives, controllers, optional modules (super capacitor, CBM, etc.), cooling modules, power supplies, cable connections, topology configurations, etc.

Safety Reminders

If you must relocate the enclosure after installation

• Cease all input / output transactions, shutdown the system, disconnect all the cables (please refer to the User Manual for details)
• Empty all drive bays (hard drives + hard drive trays) and transport them separately in safe packaging
• Modules came installed within the enclosure need not be removed

When the system is in operation

• Module and drive bays must not be empty! They must have a dummy cover / plate in place to stabilized internal airflow!
• Should a module fail, leave it in its place until you have the replacement item on-hand to take its place
• Allow at least 18\~20cm of clearance space at the rear of the enclosure for ventilation
• Avoid touching the PCB and gold-finger connections.