CSE-846BE1C-R609JBOD - Disk array Supermicro - Free user manual and instructions

Product Type	Disk Array (JBOD)
Brand	Supermicro
Model	CSE-846BE1C-R609JBOD
Form Factor	4U Rackmount
Drive Bays	24 x 3.5" SAS/SATA (Hot-swap)
Backplane	SAS3 (12Gb/s) expander
Power Supply	Dual Redundant 609W (Platinum)
Cooling	4 x 80mm hot-swap fans
Dimensions (W x H x D)	17.2" x 6.9" x 26.5"
Weight (Empty)	Approx. 35 lbs (15.9 kg)
Interface	1 x Mini-SAS HD (SFF-8644) per I/O module
Expansion	Supports daisy-chaining
LED Indicators	Power, activity, fault per drive
Operating Temperature	0°C to 40°C
Humidity	10% to 85% non-condensing
Maintenance	Tool-less drive trays, fan and PSU hot-swap
Cleaning	Use dry compressed air for dust; avoid liquids
Safety	CE, FCC Class A, RoHS compliant
Spare Parts	Drives, fans, PSUs, backplane, I/O modules
Repairability	Easy to replace hot-swap components

Frequently Asked Questions - CSE-846BE1C-R609JBOD Supermicro

What type of drives does the CSE-846BE1C-R609JBOD support?

It supports 24 x 3.5-inch SAS (12Gb/s) or SATA III (6Gb/s) hot-swappable hard drives.

What is the maximum storage capacity?

Using 24TB drives, maximum raw capacity is 576TB. Actual capacity depends on RAID configuration and controller.

What power supply is included?

The unit comes with dual redundant 609W Platinum power supplies, providing N+1 redundancy.

Can the JBOD be daisy-chained to other enclosures?

Yes, it supports daisy-chaining via the SAS expander to multiple enclosures, allowing expansion of storage capacity.

What interface does it use to connect to a host?

It uses Mini-SAS HD (SFF-8644) connectors. Typically one or two I/O modules provide the connection.

Is the chassis compatible with Supermicro motherboards?

Yes, it is designed for Supermicro servers and can be used with any SAS/SATA controller or HBA.

How do I replace a failed fan or power supply?

Both fans and power supplies are hot-swappable. Simply release the latch, remove the unit, and insert a replacement without powering down.

What are the physical dimensions of the chassis?

Approximately 17.2 inches wide, 6.9 inches high (4U), and 26.5 inches deep.

Does it support 2.5-inch drives?

Officially it supports 3.5-inch drives, but you can use 2.5-inch drives with an adapter tray.

Where can I find the user manual?

The user manual is available for free download in PDF format on notice-facile.com. You can also request a translated version.

USER MANUAL CSE-846BE1C-R609JBOD Supermicro

Isometric line drawing of a server rack unit with ventilation grilles and mounting brackets (no text or symbols)

CSE-846BE1C-R609JBOD CSE-846BE2C-R609JBOD

USER'S MANUAL

Revision 1.0a

The information in this User's Manual has been carefully reviewed and is believed to be accurate. The vendor assumes no responsibility for any inaccuracies that may be contained in this document, makes no commitment to update or to keep current the information in this manual, or to notify any person or organization of the updates. Please Note: For the most up-to-date version of this manual, please see our web site at www.supermicro.com.

Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product described in this manual at any time and without notice. This product, including software and documentation, is the property of Supermicro and/or its licensors, and is supplied only under a license. Any use or reproduction of this product is not allowed, except as expressly permitted by the terms of said license.

IN NO EVENT WILL SUPERMICRO BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, SUPERMICRO SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.

Any disputes arising between manufacturer and customer shall be governed by the laws of Santa Clara County in the State of California, USA. The State of California, County of Santa Clara shall be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all claims will not exceed the price paid for the hardware product.

FCC Statement: This equipment has been tested and found to comply with the limits for a Class A or Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in industrial environment for Class A device or in residential environment for Class B device. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be required to correct the interference at your own expense.

California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. "Perchlorate Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate".

WARNING: This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Manual Revision 1.0a

Release Date: June 04, 2021

mk

Unless you request and receive written permission from Super Micro Computer, Inc., you may not copy any part of this document.

Information in this document is subject to change without notice. Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.

Copyright © 2021 by Super Micro Computer, Inc.

All rights reserved.

Printed in the United States of America

Preface

About this Manual

This manual is written for professional system integrators and PC technicians. It provides information for the installation and use of the chassis. Installation and maintenance should be performed by experienced technicians only.

This document lists compatible parts available when this document was published. Refer to the Supermicro web site for updates on supported parts and configurations

This manual may be periodically updated without notice. Please check the Supermicro Web site for possible updates.

Warnings

Special attention should be given to the following symbols used in this manual.

Warning! Indicates important information given to prevent equipment/property damage or personal injury.

Warning! Indicates high voltage may be encountered when performing a procedure.

Contents

Chapter 1 Introduction....1-1

1-1 Overview 1-1
1-2 Shipping List.... 1-1
1-3 Components....1-2

Drives 1-2
Power Supply 1-2
Cooling 1-2
Control Board 1-2
Mounting Rails 1-2

1-4 Where to get Replacement Components.... 1-2
1-5 Returning Merchandise for Service.... 1-3
1-6 Contacting Supermicro 1-4

Chapter 2 Standardized Warning Statements for AC Systems......2-1

About Standardized Warning Statements.... 2-1
Warning Definition 2-1
Installation Instructions....2-4
Circuit Breaker 2-5
Power Disconnection Warning 2-6
Equipment Installation 2-8
Restricted Area....2-9
Battery Handling 2-10
Redundant Power Supplies 2-12
Backplane Voltage 2-13
Comply with Local and National Electrical Codes 2-14
Product Disposal 2-15
Hot Swap Fan Warning....2-16
Power Cable and AC Adapter 2-18

Chapter 3 System Interface....3-1

3-1 Overview 3-1
3-2 Control Panel Buttons 3-2

Power 3-2

(UID and BMC) Reset Button 3-2

3-3 Control Panel LEDs 3-2

Power 3-2
NIC1 3-2
Information LED 3-3

Power Fail 3-3

Overheating....3-3

3-4 Drive Carrier LEDs.... 3-4

3-5 Power Supply LEDs....3-4

Chapter 4 Chassis Setup and Maintenance....4-1

4-1 Overview 4-1

4-2 Power Up/Power Down Sequences....4-2

Power Up 4-2

First Use or Power Cord Plug-In....4-2

After Normal Shutdown by IPMI or Power Button 4-2

After a Power Loss....4-2

Power Down....4-2

Removing Power from the System 4-3

4-3 Cable Connections....4-3

BMC LAN Connection....4-3

SAS Cables 4-4

Cascading Storage....4-5

4-4 Removing the Chassis Cover 4-7

4-5 Installing Hard Drives....4-8

4-6 System Fans 4-11

4-7 Power Supply 4-13

4-8 Control Board 4-15

4-9 Accessing the Backplane....4-16

Chapter 5 Rack Installation....5-1

5-1 Unpacking the System....5-1

5-2 Preparing for Setup....5-1

Choosing a Setup Location....5-1

5-3 Warnings and Precautions....5-2

Rack Precautions....5-2

General Server Precautions....5-2

Rack Mounting Considerations 5-3

Ambient Operating Temperature 5-3

Sufficient Airflow 5-3

Circuit Overloading....5-3

Reliable Ground 5-3

5-4 Installing the Rails 5-4

Identifying the Rails 5-4

Releasing the Inner Rail 5-5

Installing the Inner Rails on the Chassis 5-6

Installing the Outer Rails onto the Rack....5-8

Installing the Chassis into a Rack....5-9

Removing the Chassis from the Rack 5-10

Chapter 6 CSE-PTJBOD-CB3 Control Board....6-1

6-1 Overview 6-1

6-2 Safety Guidelines....6-1

ESD Safety Guidelines 6-1

General Safety Guidelines 6-2

6-3 Components, Connectors, Jumpers and LEDs 6-2

Component and Connector Definitions 6-3

Jumpers and LED Indicators....6-4

6-4 I²C Cabling to the Backplane....6-6

6-5 JBOD Power Up/Power Down Sequences 6-7

Power Up 6-7

Power Down....6-7

6-6 BMC 6-8

BMC ADMIN User Password 6-8

IP Address....6-8

Appendix A SC846B JBOD Power Supply Specifications ...... A-1

Appendix B BPN-SAS3-846EL Backplane Specifications ...... B-1

Appendix C Compliance...... C-1

Chapter 1

Introduction

1-1 Overview

The SC846B JBOD storage enclosure is designed to scale your Supermicro server storage expansion capacity. In a 4U form factor, it offers twenty-four hot-swap 3.5" SAS/SATA hard drive bays, without compromising superior cooling capabilities. The CSE-846BE2C-R609JBOD model offers two expanders for high availability.

Just install hard drives and use an external SAS cable and connect to a host bus adapter (HBA) on the head node server. The storage capacity can be expanded instantly and reduce the initial investment.

The chassis is equipped with a redundant, efficient power supply for outstanding power savings, with specially designed optimized cooling. Quick release, tool-less slide rails are available for quick installation.

Note: A complete list of safety warnings is provided on the Supermicro web site at www.supermicro.com.

SC846B JBOD Chassis Models
Model HDD Power Supply
CSE-846BE1C-R609JBOD 24x	SAS/SATA	650W redundant(Platinum Level)
CSE-846BE2C-R609JBOD 24x	SAS	650W redundant(Platinum Level)

The following safety models associated with the SC846B JBOD have been certified as compliant with UL or CSA: 846JBOD-6.

1-2 Shipping List

Refer to the Supermicro website for the latest shipping lists and part numbers for your chassis model.

1-3 Components

The SC846B JBOD 4U high-performance chassis includes the following features:

Drives

The chassis supports twenty-four hot-swap 3.5" SAS or SATA hard disk drives in the front. The drives are supported by a backplane.

Power Supply

The chassis features two redundant digital power supplies, each 650 watts with a Platinum 80-Plus efficiency certification level.

Cooling

The chassis includes three hot-plug 80 mm heavy-duty, hot-swap fans and two 80 mm exhaust fans. System fans are powered and controlled by the BMC using 4-pin connectors.

Control Board

The JBOD control board allows the user to remotely control and monitor the chassis resources using the BMC, such as powering on or off, controlling fan speeds and reading temperature data from the backplane.

Mounting Rails

Rack mount rails allow you to mount the chassis in a rack. The rails feature snap-in installation and quick release, and support modern square hole racks. Round hole rack are supported with a conversion kit.

1-4 Where to get Replacement Components

If you need replacement parts for your system, to ensure the highest level of professional service and technical support, purchase exclusively from our Supermicro Authorized Distributors/System Integrators/Resellers. A list can be found at: http://www.supermicro.com. Click the "Where to Buy" link.

1-5 Returning Merchandise for Service

A receipt or copy of your invoice marked with the date of purchase is required before any warranty service will be rendered. You can obtain service by calling your vendor for a Returned Merchandise Authorization (RMA) number. When returning to the manufacturer, the RMA number should be prominently displayed on the outside of the shipping carton, and mailed prepaid or hand-carried. Shipping and handling charges will be applied for all orders that must be mailed when service is complete.

For faster service, RMA authorizations may be requested online (http://www.supermicro.com/support/rma/).

Whenever possible, repack the chassis in the original Supermicro carton, using the original packaging material. If these are no longer available, be sure to pack the chassis securely, using packaging material to surround the chassis so that it does not shift within the carton and become damaged during shipping.

This warranty only covers normal consumer use and does not cover damages incurred in shipping or from failure due to the alteration, misuse, abuse or improper maintenance of products.

During the warranty period, contact your distributor first for any product problems.

1-6 Contacting Supermicro

Headquarters

Address: Super Micro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.

Tel: [phone]

Fax: [phone]

Email: [e-mail] (General Information)

[e-mail] (Technical Support)

Web Site: www.supermicro.com

Europe

Address: Super Micro Computer B.V.

's-Hertogenbosch, The Netherlands

Tel: [phone]

Fax: [phone]

Email: [e-mail] (General Information)

[e-mail] (Technical Support)

[e-mail] (Customer Support)

Web Site: www.supermicro.nl

Asia-Pacific

Address: Super Micro Computer, Inc.

3F, No. 150, Jian 1st Rd.

Zhonghe Dist., New Taipei City 235

Taiwan (R.O.C)

Tel: [phone]

Fax: [phone]

Email: [e-mail]

Web Site: www.supermicro.com.tw

Chapter 2

Standardized Warning Statements for AC Systems

About Standardized Warning Statements

The following statements are industry standard warnings, provided to warn the user of situations which have the potential for bodily injury. Should you have questions or experience difficulty, contact Supermicro's Technical Support department for assistance. Only certified technicians should attempt to install or configure components.

Read this appendix in its entirety before installing or configuring components in the Supermicro chassis.

These warnings may also be found on our web site at http://www.supermicro.com/about/policies/safety_information.cfm.

Warning Definition

Warning!

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents.

警告の定義

この警告サインは危険を意味します。

Installation Instructions

Warning!

Read the installation instructions before connecting the system to the power source.

設置手順書

This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 250 V, 20 A.

サーキット・ブレーカー

Power Disconnection Warning

Warning!

The system must be disconnected from all sources of power and the power cord removed from the power supply module(s) before accessing the chassis interior to install or remove system components.

電源切断の警告

Equipment Installation

Warning!

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

機器の設置

This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. (This warning does not apply to workstations).

アクセス制限区域

There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions

電池の取り扱い

Redundant Power Supplies

Warning!

This unit might have more than one power supply connection. All connections must be removed to de-energize the unit.

冗長電源裝置

Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing.

バックプレーンの電圧

Comply with Local and National Electrical Codes

Warning!

Installation of the equipment must comply with local and national electrical codes.

地方および国の電気規格に準拠

Ultimate disposal of this product should be handled according to all national laws and regulations.

製品の廃棄

Hazardous moving parts. Keep away from moving fan blades. The fans might still be turning when you remove the fan assembly from the chassis. Keep fingers, screwdrivers, and other objects away from the openings in the fan assembly's housing.

ファン・ホットスワップの警告

Power Cable and AC Adapter

Warning!

When installing the product, use the provided or designated connection cables, power cables and AC adaptors. Using any other cables and adaptors could cause a malfunction or a fire. Electrical Appliance and Material Safety Law prohibits the use of UL or CSA-certified cables (that have UL/CSA shown on the code) for any other electrical devices than products designated by Supermicro only.

電源コードとACアダプター

The server includes a control panel on the front that houses power buttons and status monitoring lights. The externally accessible hard drives display status lights. The power supply displays status lights visible from the back of the chassis.

Figure 3-1. Front Control Panel

3-2 Control Panel Buttons

The chassis includes two push-buttons that control power to the system.

Power

The main power switch applies or removes primary power from the power supply to the JBOD Control Board but maintains standby power. To perform most maintenance tasks, unplug the system to remove all power.

UID and BMC Reset Button

• Press briefly to toggle the UID alert light. The blue LED will blink.
• Press and hold 6 seconds to set the BMC IP address to 192.168.1.99. The blue LED will blink.
• Press and hold 12 seconds to restore factory defaults. The blue LED will remain on.

3-3 Control Panel LEDs

There are four LEDs that provide status information about the system.

Power

Indicates power is being supplied to the system power supply units. This LED is illuminated when the system is operating normally.

NIC1

Indicates network activity on GLAN1 when flashing.

Information LED

Alerts operator to several states, as noted in the table below.

Information LED
Status Description
Continuously on and red	An overheat condition has occurred. (This may be caused by cable congestion.)
Blinking red (1Hz) Fan failure	check for an inoperative fan.
Blinking red (0.25Hz) Power	failure, check for a non-operational power supply.
Solid blue	Local UID has been activated. Use this function to locate the server in a rack mount environment.
Blinking blue	Remote UID is on. Use this function to identify the server from a remote location.

Power Fail

Indicates a power supply module has failed.

Overheating

A sensor on the backplane will issue a warning at 45^ C. Overheating is critical at 49^ C. There are several possible responses if the system overheats.

If the server overheats:

1. Use the LEDs to determine the nature of the overheating condition.
2. Confirm that the chassis covers are installed properly.
3. Check the routing of the cables and make sure all fans are present and operating normally.

3-4 Drive Carrier LEDs

The SC846B JBOD chassis uses SAS or SATA drives. Each drive carrier has two LED indicators on the front, one blue and red. The LEDs function as follows:

Blue Drive Carrier LED Indicator
Color Status Description
Blue Steady on Indicates a SAS drive
Blue Off Indicates a SATA drive
Blue Blinking Drive is actively being accessed

Red Drive Carrier LED Indicator
Color Status	Description
Red Steady on	Drive failure
Red Blinking	RAID activity

When the red LED is blinking, it indicates that the system is either building, initializing or rebuilding RAID.

3-5 Power Supply LEDs

On the rear of the power supply module, an LED displays the status.

• Solid Green: When illuminated, indicates that the power supply is on.
• Solid Amber: When illuminated, indicates the power supply is plugged in and turned off, or the system is off but in an abnormal state.
• Blinking Amber: When blinking, this system power supply temperature has reached 63C. The system will automatically power-down when the power supply temperature reaches 70C and restart when the power supply temperature goes below 60C.

Chapter 4

Chassis Setup and Maintenance

4-1 Overview

This chapter covers the steps required to install components and perform maintenance on the chassis. The only tool required is a Phillips screwdriver.

Review the warnings and precautions listed in the manual before setting up or servicing this chassis. These include information in Chapter 2: Warning Statements for AC Systems and the warning/precautions listed in the setup instructions.

Front view of a server rack with multiple drive bays and indicator lights (no visible text or labels)

Control Panel
Figure 4-1. Front View

Technical line drawing of a server rack with front panel, drive bays, and internal components (no text or symbols)

Figure 4-2. Rear View (E2C model shown)

4-2 Power Up/Power Down Sequences

There are several procedures to turn on or off the system with the CB3 JBOD control board.

Power Up

First Use or Power Cord Plug-In

1. Plug the power cords into the rear of the power supplies.

2. Wait until blue Information LED starts to blink.

3. Press the power button once. The JBOD control board initiates the power up sequence in three seconds.

After Normal Shutdown by BMC or Power Button

Press the power button once. The JBOD control board will initiate the power up sequence in three seconds.

After a Power Loss

The system will power up automatically approximately 45 seconds after the power returns.

Power Down

1. Hold down the power button. The blue Information LED will begin blinking. Continue to hold the power button.
2. Release power button after blue LED stops blinking and goes dark.
3. The shutdown sequence will begin and shut down the system within ten seconds

Removing Power from the System

Before performing most setup or maintenance tasks, use the following procedure to ensure that power has been removed from the system.

1. After the system has completely shut-down, carefully grasp the head of the power cord and gently pull it out of the back of the power supply. If your system has dual power supplies, remove the cords from both power supplies.

2. Disconnect the cord from the power strip or wall outlet..

4-3 Cable Connections

BMC LAN Connection

The Control Board offers intelligent management with the baseboard management controller (BMC) providing hardware health monitoring and remote power control. To enable, connect to the storage enclosure using the dedicated BMC LAN connector (Figure 4-2).

For more information on the BMC, see Section 6-6 in this manual.

SAS Cables

This drawing shows connectors for SAS cabling. For primary and secondary, the top two connectors are marked In, and the bottom two connectors are marked In/Out.

Connect two mini-SAS HD cables (SFF-8644) from the head server node host bus adapter (HBA) card to the top two Primary receptacles marked In. If using the E2C model (CSE-846BE2C-R609JBOD) for redundancy, connect two more mini-SAS HD cables to the top two Secondary receptacles also marked In. Cables are described in Appendix B.

To cascade out, connect cables from the two receptacles marked In/Out to the next JBOD storage enclosure. (see Figure 4-4 and 4-5)

Cascading Storage

The following diagram shows a server with a single host bus adapter (HBA) and requires only the primary expander on the backplane. The SC846B JBOD storage enclosure model E1C can accommodate this configuration.

Figure 4-4. Sample Cascading Storage, Single HBA

The following diagram shows a server with dual HBAs and requires the primary and secondary expanders on the backplane. The SC846B JBOD storage enclosure model E2C accommodates this configuration.

Figure 4-5. Sample Cascading Storage, Dual HBAs

4-4 Removing the Chassis Cover

Figure 4-4. Removing the Chassis Cover

Removing the Chassis Cover

1. Power down the system and remove the power cords from the back of the power supplies.
2. Press the release tabs to remove the cover from the locked position. Press both tabs at the same time.
3. Once the top cover is released from the locked position, slide the cover toward the rear of the chassis.
4. Lift the cover off the chassis.

Caution: Except for short periods of time, do not operate the server without the cover in place. The chassis cover provides proper airflow and prevents overheating.

4-5 Installing Hard Drives

The drives are mounted in drive carriers to simplify their installation and removal from the chassis. These carriers also help promote proper airflow for the drive bays.

Caution: Except for short periods of time, such as swapping hard drives, do not operate the server with the hard drive bays empty.

Figure 4-5. Removing a Hard Drive Carrier

Removing Hard Drive Carriers from the Chassis

1. Press the release button on the drive carrier. This extends the drive carrier handle.
2. Use the handle to pull the drive out of the chassis.

Place the drive carrier on a flat surface such as a desk, table or work bench.

Installing a Hard Drive

1. Remove the two screws securing the dummy drive to the drive carrier and remove the dummy drive.
2. Slide the hard drive into the carrier with the printed circuit board side facing down.

Figure 4-6. Removing a Dummy Drive from the Drive Carrier

Figure 4-7. Installing the Hard Drive into the Drive Carrier

1. Carefully align the mounting holes in both the drive carrier and the hard drive.
2. Secure the hard drive to the carrier using six screws.
3. Replace the drive carrier into the chassis. Make sure to close the drive carrier handle to lock the drive carrier into place.

Illustration of a server rack unit with a separate internal component and a directional arrow indicating motion (no text or symbols present)

Figure 4-8. Installing the Hard Drive

4-6 System Fans

Five heavy-duty hot-swap system fans (three mid-chassis and two rear exhaust) provide cooling for the chassis.

Figure 4-9. Mid-chassis Fan

Figure 4-10. Rear Exhaust Fan

Replacing a System Fan

1. If necessary, open the chassis while the power is running to determine which fan has failed. (Do not run the server for an extended time with the chassis open.)
2. Remove the failed fan's power cord from the JBOD control board.
3. Press the fan release tab to lift the failed fan from the chassis and pull it completely from the chassis.
4. Place the new fan into the vacant space in the housing making sure the arrows on the top of the fan, indicating air direction, point in the same direction as the arrows on the other fans.
5. Check that the fan is working properly before replacing the chassis cover.

Isometric technical diagram of a server rack with cooling fans and ventilation slots (no text or labels)

Figure 4-11. Placing a Mid-chassis Fan

4-7 Power Supply

The chassis features redundant power supplies. They are hot-swappable, meaning they can be changed without powering down the system. New units can be ordered directly from Supermicro or authorized distributors.

These power supplies are auto-switching capable. This feature enables them to automatically sense the input voltage and operate at a 100-120v or 180-240v. An amber light will be illuminated on the power supply when the power is off. An illuminated green light indicates that the power supply is operating.

Figure 4-12. Power Supply Release Tab

Changing the Power Supply:

1. Unplug the AC cord from the module to be replaced.

2. Push the release tab on the back of the power supply as illustrated.

3. Pull the power supply out using the handle provided.

4. Replace the failed power module with another of the same model.
5. Push the new power supply module into the power bay until it clicks into the locked position.
6. Plug the AC power cord back into the module.

4-8 Control Board

The JBOD control board (CSE-PTJBOD-CB3) allows the user to remotely control and monitor the chassis resources using the BMC, such as powering on or off, controlling fan speeds and reading temperature data from the backplane. The location is shown in the figure below.

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

Figure 4-13. Control Board Location

4-9 Accessing the Backplane

The chassis backplane is located behind the hard drives and in front of the front system fans. In order to change jumper settings on the backplane, it may be necessary to remove the backplane from the chassis.

Removing the Backplane

1. Power down the system, remove the power cords from the back of the power supplies and remove the chassis cover.
2. Disconnect the cabling to the backplane.
3. On the right side of the chassis, remove the two screws that secure the backplane bracket and set these aside for later use.
4. Remove the four upper screws securing backplane housing to the chassis and set these aside for later use.

Figure 4-14. Removing the Upper Backplane Housing Screws

1. Remove the five lower screws securing the backplane housing to the chassis floor and set these aside for later use.

Figure 4-15. Removing the Lower Backplane Housing Screws

1. Gently ease the backplane up and out of the chassis.

Figure 4-16. Removing the Backplane from the Chassis

Installing the Backplane

1. Gently slide the backplane and its housing back into position in the chassis.

Figure 4-17. Slide the Backplane into the Chassis

1. Install the five lower screws which secure the backplane housing to the chassis floor.

Figure 4-18. Installing the Lower Screws

Figure 4-19. Installing the Upper Screws

1. Install the four upper screws which secure the backplane housing to the chassis.
2. Install the two screws on the right side of the chassis to secure the backplane bracket.
3. Reconnect the cabling to the backplane.

Notes

Chapter 5

Rack Installation

This chapter provides instructions for preparing and mounting your chassis in a rack.

5-1 Unpacking the System

You should inspect the box the chassis was shipped in and note if it was damaged in any way. If the chassis itself shows damage, file a damage claim with the carrier who delivered it.

5-2 Preparing for Setup

Decide on a suitable location for the rack unit that will hold your chassis. It should be a clean, dust-free area that is well ventilated. Avoid areas where heat, electrical noise and electromagnetic fields are generated. A nearby grounded power outlet. is required

The box your chassis was shipped in should include two sets of rail assemblies, two rail mounting brackets and the mounting screws to mount the system into the rack. Please read this chapter in its entirety before beginning the installation procedure.

Choosing a Setup Location

• Leave at least 25 inches clearance in front of the rack to open the front door completely.
• Leave approximately 30 inches of clearance in the back of the rack to allow for sufficient airflow and access for servicing.
• It should be a restricted access location, such as a dedicated equipment room or a service closet.

5-3 Warnings and Precautions

Rack Precautions

• Ensure that the leveling jacks on the bottom of the rack are fully extended to the floor with the full weight of the rack resting on them.
  • In single rack installations, stabilizers should be attached to the rack.
• In multiple rack installations, the racks should be coupled together.
• Always make sure that the rack is stable before extending a component from the rack.
• Only one chassis should be extended from the rack at a time. Extending two or more chassis simultaneously may cause the rack to become unstable.
• When initially installing the server to a rack, test that the rail locking tabs engage to prevent the server from being overextended. Have a rack lift in place as a precaution in case the test fails.
• In any instance of pulling the system from the rack, always use a rack lift and follow all associated safety precautions.

General Server Precautions

• Review the electrical and general safety precautions that came with the components you are adding to your chassis.
• Determine the placement of each component in the rack before you install the rails.
• Install the heaviest server components on the bottom of the rack first, and then work upward.
• Use a regulating uninterruptible power supply (UPS) to protect the server from power surges, voltage spikes and to keep your system operating in case of a power failure.
• Allow the hot-swappable hard drives and power supply modules to cool before touching them.
• Always keep the rack's front door and all panels and components on the servers closed when not servicing to maintain proper cooling.

Rack Mounting Considerations

Ambient Operating Temperature

If installed in a closed or multi-unit rack assembly, the ambient operating temperature of the rack environment may be greater than the ambient temperature of the room. Therefore, consideration should be given to installing the equipment in an environment compatible with the manufacturer's maximum rated ambient temperature (TMRA).

Sufficient Airflow

Equipment should be mounted into a rack so that the amount of airflow required for safe operation is not compromised.

Circuit Overloading

Consideration should be given to the connection of the equipment to the power supply circuitry and the effect that any possible overloading of circuits might have on overcurrent protection and power supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

Reliable Ground

A reliable ground must be maintained at all times. To ensure this, the rack itself should be grounded. Particular attention should be given to power supply connections other than the direct connections to the branch circuit (i.e. the use of power strips, etc.).

Warning: To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.
• Slide rail mounted equipment is not to be used as a shelf or a work space.

5-4 Installing the Rails

There are a variety of rack units on the market, and some may require a slightly different assembly procedure. The following is a basic guideline for installing the system into a rack with the provided rack rails. Also refer to the installation instructions that came with the specific rack you are using.

This rail set fits a rack between 26.5" and 36.4" deep. Do not use a two post "telco" type rack.

Identifying the Rails

The chassis package includes two rail assemblies. Each assembly consists of three sections: An inner rail that secures directly to the chassis, an outer rail that secures to the rack, and a middle rail which extends from the outer rail. These assemblies are specifically designed for the left and right side of the chassis and labeled.

Figure 5-1. Identifying the Outer Rail, Middle Rail (Left Rail Assembly Shown)

Rail

Note: Both front chassis rails and the rack rails have a locking tab, which serves two functions. First, it locks the server into place when installed and pushed fully into the rack (its normal operating position. In addition, these tabs lock the server in place when fully extended from the rack. This prevents the server from coming completely out of the rack when pulled out for servicing.

Releasing the Inner Rail

Each inner rail has a locking latch. This latch prevents the server from coming completely out of the rack when when the chassis is pulled out for servicing.

To mount the rail onto the chassis, first release the inner rail from the outer rails.

1. Pull the inner rail out of the outer rail until it is fully extended as illustrated below.
2. Press the locking tab down to release the inner rail.
3. Pull the inner rail all the way out.

Figure 5-2. Extending and Releasing the Inner Rail

Installing the Inner Rails on the Chassis

Figure 5-3. Installing the Inner Rails

Installing the Inner Rails

1. Identify the left and right side inner rails. Place the correct inner rail on the side of the chassis, aligning the hooks of the chassis with the inner rail holes. Make sure the rail faces "outward" so that it will fit with the rack's mounting bracket.

2. Slide the rail toward the front of the chassis to hook the inner rail onto the side of the chassis.

3. If desired, secure the rail with two flat head M4 x 4mm screws as illustrated.

4. Repeat for the other inner rail.

Warning: Do not pick up the server by the front handles. They are designed to pull the system from a rack only.

Installing the Outer Rails onto the Rack

Installing the Outer Rails

1. Press upward on the locking tab at the rear end of the middle rail.

2. Push the middle rail back into the outer rail.

3. Hang the hooks on the front of the outer rail onto the square holes on the front of the rack. If desired, use screws to secure the outer rails to the rack.

4. Pull out the rear of the outer rail, adjusting the length until it just fits within the posts of the rack.

5. Hang the hooks of the rear section of the outer rail onto the square holes on the rear of the rack. Take care that the proper holes are used so the rails are level. If desired, use screws to secure the rear of the outer rail to the rear of the rack.

6. Repeat for the other outer rail.

Figure 5-4. Extending and Mounting the Outer Rails

Stability hazard. The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before you slide the unit out for servicing. Failure to stabilize the rack can cause the rack to tip over.

Do not use a two post "telco" type rack.

Installing the Chassis into a Rack

Installing the Chassis into a Rack:

1. Align the chassis rails (A) with the front of the rack rails (B).
2. Slide the chassis rails into the rack rails, keeping the pressure even on both both sides. You may have to depress the locking tabs while inserting. When the server has been pushed completely into the rack, the locking tabs should "click" into the locked position.
3. If screws are used, tighten the screws on the front and rear of the outer rails.
4. (Optional) Insert and tighten the thumbscrews that hold the front of the server to the rack.

Figure 5-5. Installing the Chassis into a Rack

Note: Figures are for illustrative purposes only. Always install servers into racks from the bottom up.

Removing the Chassis from the Rack

Caution! It is dangerous for a single person to off-load the heavy chassis from the rack without assistance. Be sure to have sufficient assistance supporting the chassis when removing it from the rack. Use a lift.

Technical line drawing of a server rack with labeled component (no text or symbols beyond label)

Figure 5-6. Removing the Chassis From the Rack

Removing the Chassis from the Rack

1. Pull the chassis forward out the front of the rack until it stops.
2. Press the release latches on each of the inner rails downward simultaneously and move the chassis forward in the rack.

Chapter 6

CSE-PTJBOD-CB3 Control Board

6-1 Overview

The CSE-PTJBOD-CB3 model JBOD control board allows the user to remotely control and monitor the chassis resources using the BMC, such as powering on or off, controlling fan speeds and reading temperature data from the backplane. It has been designed to utilize the most up-to-date technology available, providing your system with reliable, high-quality performance.

This manual reflects the revision 1.02 JBOD control board, the most current release available at the time of publication. Refer to the Supermicro web site at www.supermicro.com for the latest updates, compatible parts and supported configurations.

6-2 Safety Guidelines

ESD Safety Guidelines

Electrostatic Discharge (ESD) can damage electronic components. To prevent damage to your system, it is important to handle it very carefully. The following measures are generally sufficient to protect your equipment from ESD.

• Use a grounded wrist strap designed to prevent static discharge.
• Touch a grounded metal object before removing a component from the antistatic bag.
• Handle the control board by its edges only; do not touch its components, peripheral chips, memory modules or gold contacts.
• When handling chips or modules, avoid touching their pins.
• Put the control board and peripherals back into their antistatic bags when not in use.

General Safety Guidelines

• Always disconnect power cables before installing or removing any components from the computer, including the control board.
• Disconnect the power cable before installing or removing any cables from the control board.
• Make sure that the control board is securely and properly installed in the chassis to prevent damage to the system due to power shortage.

6-3 Components, Connectors, Jumpers and LEDs

Component and Connector Locations

Figure 6-1. Components and Connectors on the CSE-PTJBOD-CB3

Components and Connectors

1. BMC Chip
2. SAS2/SAS3 I ^2 C Connectors JP1-JP4
3. Manufacturing Test Connector: J3
4. Manufacturer's USB Test Connector: FB1

5. BMC LAN LED Header: JP6

6. BMC LAN Connector: J8

7. (SC847D only) SAS2 I²C Connectors: J4 - J7

8. Control Panel Connector: JF1

9. PMBus Connector: JPI ^2 C1

10. Fan Connectors: FAN1 - FAN10

11. ATX Power Connector: JPW1

Component and Connector Definitions

1. BMC Chip

The Baseboard Management Controller (BMC) chip monitors the physical state of a system and provides communication with the system administrator through an independent connection.

2. PC Connectors

These connectors (JP1-JP4) accept cables for up to four SAS2/SAS3 backplanes that carry management data between the the backplane and the control board.

3 and 4. Manufacturing Test Connectors

Connectors J3 and FB1 are for Supermicro manufacturing use only.

5. BMC LAN LED Header

This connector is designated JP6 and is used to connect to the LED indicators on the chassis using cable CBL-NTWK-0584 or CBL-NTWK-0587.

6. BMC LAN Connector

The baseboard management controller (BMC) LAN connector is designated J8 and supports connectivity with a local network using cable CBL-NTWK-0584 or CBL-NTWK-0587.

7. SC847D SAS2 I²C Connectors

(Used for SC847D only) The backplane connectors, designated J4-J7, accept internal cables to connect to up to four SC847D expanders.

8. Control Panel Connector

This connector is designated JF1 and connects to the control panel on the chassis. See Chapter 3 for additional control panel information.

9. PMBus Connector

This connector is designated JPI2C1 and connects the power distributor to the Power Management Bus (PMBus).

10. Fan Connectors

The fan connectors supply power to the fans and are designated FAN1-FAN10.

11. ATX Power Connector

The ATX power connector is designated JPW1.

Jumpers and LED Indicators

Figure 6-2. Jumpers

SAS2/SAS3 Jumpers
Jumper Description
JP7	Pins 1-2: Obsolete, do not usePins 2-3: User mode (static/DHCP, default)
JP5	Pins 1-2: SAS3 enabledPins 2-3: SAS2 enabled and SC847D

To enable SAS2 or SAS3 functionality on the I²C connectors, set the JP5 jumper as noted.

Figure 6-3. LED Indicators

LED Indicators
LED Description
LE1 Heartbeat LED: A blinking LED indicates BMC activity
LE2 Power LED: DC power indicator

6-4 I²C Cabling to the Backplane

This JBOD storage enclosure is pre-configured with the internal cables connected. Use this section for reference if a cable becomes disconnected during maintenance. Ensure that the JP5 jumper on the JBOD control board is set according to the table in the section, Jumpers and LED Indicators.

When enabling SAS2/SAS3 functionality, connect the I²C connectors on the JBOD control board (Figure CB3-1) to the proper connector on the backplane. Refer to the table below and the backplane documentation to determine the correct connector.

Figure 6-4. SAS I²C Cabling (except SC847D)

Connections for SC846B JBOD Chassis

Specific ^C connectors (JP1-JP4) on the JBOD control board are connected to the backplane.

graph TD
    JP1 --> A["Component 1"]
    JP2 --> B["Component 2"]
    JP3 --> C["Component 3"]
    JP4 --> D["Component 4"]

I^2C Cable Connections for SC846B JBOD
Control Board	BPN-SAS3-216EL Backplane
JP1	SMB connector

6-5 JBOD Power Up/Power Down Sequences

There are several procedures to turn on or off the system with the CB3 JBOD control board.

Power Up

First Use or Power Cord Plug-In

1. Plug the power cords into the rear of the power supplies.

2. Wait until blue Information LED starts to blink.

3. Press the power button once. The JBOD control board initiates the power up sequence in three seconds.

After Normal Shutdown by BMC or Power Button

Press the power button once. The JBOD control board will initiate the power up sequence in three seconds.

After a Power Loss

The system will power up automatically approximately 45 seconds after the power returns.

Power Down

1. Hold down the power button. The blue Information LED will begin blinking. Continue to hold the power button.
2. Release power button after blue LED stops blinking and goes dark.
3. The shutdown sequence will begin and shut down the system within ten seconds

6-6 BMC

The control board provides remote access, monitoring and management through the baseboard management controller (BMC) and other management controllers distributed among different system modules. There are several BIOS settings that are related to BMC. For general documentation and information on BMC, visit our website at:

www.supermicro.com/en/solutions/management-software/bmc-resources

BMC ADMIN User Password

For security, each system is assigned a unique default BMC password for the ADMIN user. This can be found on a sticker on the chassis and a sticker on the control board. The sticker also displays the BMC MAC address.

Figure 6-5. BMC Password Label

IP Address

The default IP address configuration mode is Dynamic Host and Configuration Protocol (DHCP). When connected to the network, you can find the IP address assigned to this system from the DHCP server. (See below for an additional method to identify the assigned IP address.) This allows you to log in to the BMC.

Note: The IP configuration mode can be reset to Static IP mode for troubleshooting. Press and hold the UID/reset button on the front Control panel for 6-8 seconds to change to static IP mode with the default IP address as shown below. Return the IP configuration mode back to DHCP using the BMC.

Simple setup configuration:

BMC default IP: 192.168.1.99

User name: ADMIN

Password: Unique password, as noted on sticker (details above)

Finding BMC IP Address Using SAS In-band (Linux)

An alternate method of finding the IP address:

1. Identify the JBOD enclosure name, for example /dev/sg4.
2. Use the vpd command to view the IP address.

[root@hdmaster user]# sg_vpd -p 0x85 /dev/sg4

Management network addresses VPD page:

Target device that contains addressed lu, Service type: unspecified

172.31.40.150

[root@hdmaster user]#

Notes

Appendix A

SC846B JBOD Power Supply Specifications

This appendix lists power supply specifications for your chassis system.

650W (Redundant)
Supermicro Part #	PWS-609P-1R2 with PDB
AC Input	100-240 V, 4.5-11 Amp, 50-60 Hz
DC Output +12V	600W (100p127Vac) 50A650W (200-240V) 54A
+5V standby	4 Amp

Appendix B

BPN-SAS3-846EL Backplane Specifications

This appendix provides details about the backplanes used in the SC846B JBOD chassis.

Chassis Model Backplane Feature
SC846BE1C-R1K03JBOD BPN-SAS3-846EL1 Single SAS expander
SC846BE2C-R1K03JBOD BPN-SAS3-846EL2 Dual SAS expanders

B-1 Safety Guidelines

ESD Safety

Electrostatic Discharge (ESD) can damage electronic components. To prevent damage to your system, it is important to handle it very carefully. The following measures are generally sufficient to protect your equipment from ESD.

• Use a grounded wrist strap designed to prevent static discharge.
• Touch a grounded metal object before removing a component from the antistatic bag.
• Handle the backplane by its edges only; do not touch its components, peripheral chips, memory modules or gold contacts.
• When handling chips or modules, avoid touching their pins.
• Put the card and peripherals back into their antistatic bags when not in use.

General Safety

• Always disconnect power cables before installing or removing any components from the computer, including the backplane.
• Disconnect the power cable before installing or removing any cables from the backplane.
• Make sure that the backplane is securely and properly installed on the motherboard to prevent damage to the system due to power shortage.

B-2 Version Information

The BPN-SAS3-846EL backplane has been designed to utilize the most up-to-date technology available, providing your system with reliable, high-quality performance.

This manual reflects BPN-SAS3-846EL Revision 1.01, the most current release available at the time of publication. All images and layouts shown in this guide are based upon the latest backplane revision available at the time of publishing. Always refer to the Supermicro Web site at www.supermicro.com for the latest updates, compatible parts and supported configurations.

B-3 Rear Connectors and Jumpers

The following connectors are on the side of the backplane that faces the rear of the chassis. They are marked by silkscreen labels.

Figure B-1. Rear Connectors and Jumpers

Rear Connectors

1. Primary Expander Chip
2. Secondary Expander Chip (not present on EL1 single port backplanes)
3. Backplane Power Connectors: PWR1 through PWR6
4. Primary SAS Ports: J49, J50
5. Secondary SAS Ports: J51, J52. (not present on EL1 single port backplanes)

6. Primary UART Connector: PRI-UART (J30) for manufacturer's use only

7. Secondary UART Connector: SEE-UART(J24) for manufacturer's use only, not present on EL1 backplanes

8. Primary SDB Connector: PRI-SDB (J31), for manufacturer's use only
9. Secondary SDB Connector: SEE-SDB (J29), for manufacturer's use only, not present on EL1 backplanes
10. I²C Connector: EXP I2C0 (J48) and EXP I2C4 (J47)
11. JP3 P_MDIO and JP4 P_MDIO: Primary and secondary management data in/out. For manufacturer's use only.

B-4 Rear Connector and Pin Definitions

1-2. Primary and Secondary Expander Chips

The primary and secondary expander chips allow the backplane to support dual port, cascading, and failover configurations.

3. Backplane Power Connectors

The 4-pin connectors, designated PWR1 to PWR6 provide power to the backplane. See the table on the right for pin definitions.

BackplaneMain Power4-Pin Connector
Pin#	Definition
1	+12V
2 and 3 Ground
4 +5V

4-5. Primary and Secondary SAS Ports

The primary SAS connectors are designated J49 and J50. The secondary SAS Ports are designated J51 through J52 and are not present on EL1 single port backplanes.

6-9. Primary and Secondary UART Connectors and SDB Connectors

For manufacturer's diagnostic purposes only.

10. I²C Connectors

The I ^2 C connectors accept cables to the JBOD Control Board.

11. Management Data Port

For manufacturer's use only. JP3 P_MDIO and JP4 P_MDIO are primary and secondary management data in and out.

B-5 Rear Jumper Locations and Pin Definitions

Figure B-2. Rear Jumpers

Jumper	Jumper Settings	Note
LED Testing Only ACTLED	Open: Disabled (Default) Closed: Enabled	Activity LED test.

Explanation of Jumpers

To modify the operation of the backplane, jumpers can be used to choose between optional settings. Jumpers create shorts between two pins to change the function of the connector. Pin 1 is identified with a square solder pad on the printed circuit board. Note: On two pin jumpers, "Closed" means the jumper is on and "Open" means the jumper is off the pins.

B-6 Rear LED Indicators

Figure B-3. Rear LEDs

Rear LEDs
LED	Normal State	Abnormal State	Specification
12V_LED1 On Off 12V power status.
12V_LED2 Blinking		Steady on, or off	Primary expander heartbeat indicator.
5V_LED1 On Off 5V power status.
5V_LED2 Blinking		Steady on, or off	Secondary expander heartbeat indicator (not present on BPN-SAS3-846EL1 backplanes).
OVERHEATFAIL1 Off On System overheat/failure LED.

B-7 Front Components, Connectors and LED Indicators

graph TD
    A["SAS #0 J0"] --> B["ACT0 FAIL0"]
    C["SAS #1 J1"] --> D["ACT1 FAIL1"]
    E["SAS #2 J2"] --> F["ACT2 FAIL2"]
    G["SAS #3 J3"] --> H["ACT3 FAIL3"]
    I["SAS #4 J4"] --> J["SAS #10 J10"]
    K["SAS #5 J5"] --> L["SAS #11 J11"]
    M["SAS #6 J7"] --> N["SAS #7 J8"]
    O["SAS #7 J8"] --> P["SAS #8 J9"]
    Q["SAS #8 J10"] --> R["SAS #9 J9"]
    S["SAS #9 J10"] --> T["SAS #10 FAIL10"]
    U["SAS #10 FAIL10"] --> V["SAS #11 FAIL11"]
    W["SAS #11 FAIL11"] --> X["SAS #12 FAIL6"]
    Y["SAS #12 FAIL6"] --> Z["SAS #13 J13"]
    AA["SAS #13 FAIL6"] --> AB["SAS #14 J14"]
    AC["SAS #14 FAIL6"] --> AD["SAS #15 J15"]
    AE["SAS #15 FAIL6"] --> AF["SAS #16 J16"]
    AG["SAS #16 FAIL6"] --> AH["SAS #17 J17"]
    AI["SAS #17 FAIL6"] --> AJ["SAS #18 J18"]
    AK["SAS #18 FAIL6"] --> AL["SAS #19 J19"]
    AM["SAS #19 FAIL6"] --> AN["SAS #20 J20"]
    AO["SAS #20 FAIL6"] --> AP["SAS #21 J21"]
    AQ["SAS #21 FAIL6"] --> AR["SAS #22 J22"]
    AS["SAS #22 FAIL6"] --> AT["SAS #23 J23"]
    AU["SAS #23 FAIL6"] --> AV["SAS #24 J24"]
    AW["SAS #24 FAIL6"] --> AX["SAS #25 J25"]
    AY["SAS #0 J0"] --> AZ["SAS #0 FAIL0"]
    BA["SAS #0"] --> BB["SAS #0 FAIL0"]
    BC["SAS #0"] --> BD["SAS #0 FAIL0"]
    BE["SAS #0"] --> BF["SAS #0 FAIL0"]
    BG["SAS #0"] --> BH["SAS #0 FAIL0"]
    BI["SAS #0"] --> BJ["SAS #0 FAIL0"]
    BK["SAS #0"] --> BL["SAS #0 FAIL0"]

Figure B-4. Front Connectors

Front SAS/SATA Connectors and LED Indicators
Drive Number Label		HDD Activity LED (blue)	Failure LED (red)
SAS #0 J0 ACT0 FAIL0
SAS #1 J1 ACT1 FAIL1
SAS #2 J2 ACT 2 FAIL2
SAS #3 J3 ACT3 FAIL3
SAS #4 J4 ACT4 FAIL4
SAS #5 J5 ACT5 FAIL5
SAS #6 J6 ACT6 FAIL6
SAS #7 J7 ACT7 FAIL7
SAS #8 J8 ACT8 FAIL8
SAS #9 J9 ACT 9 FAIL9
SAS #10 J10 ACT10 FAIL10
SAS #11 J11 ACT11 FAIL11
SAS #12 J12 ACT12		FAIL12
SAS #13 J13 ACT13		FAIL13
SAS #14 J14 ACT14 FAIL14
SAS #15 J15 ACT15 FAIL15
SAS #16 J16 ACT16		FAIL16
SAS #17 J17 ACT17 FAIL17
SAS #18 J18 ACT18 FAIL18
SAS #19 J19 ACT19 FAIL19
SAS #20 J20 ACT20 FAIL20
SAS #21 J21 ACT21 FAIL21
SAS #22 J22 ACT22 FAIL22
SAS #23 J23 ACT23 FAIL23

Dual Port and Cascading Configurations

B-8 Single and Dual Port Expanders

SAS primary connectors J49 to J50 and secondary connectors J51 to J52 are bidirectional and can be treated as input or output.

Single Ports

BPN-SAS3-846EL1 backplanes have a single port expander that accesses all of the drives and supports cascading.

Figure B-5. BBPN-SAS3-846EL1 Single Port Configuration

Dual Ports

BPN-SAS3-846EL2 model backplanes have dual-port expanders that access all of the hard drives. These dual-port expanders support cascading, failover, and recovery.

Figure B-6. BPN-SAS3-846EL2 Dual Port Configuration

Connecting an Internal HBA to the Backplane

This section shows connections and cables that connect an internal HBA to the backplane. Note: Not applicable for the SC846B JBOD chassis.

Figure B-11. Single Internal Host Bus Adapter

Figure B-12. Dual Internal Host Bus Adapter

Supported Internal HBA Cables

Use the following cables to create connections between the internal HBA and BPN-SAS3-846EL backplane. The cables required depend upon the HBA connector.

Cable Name: Internal iPass (Mini-SAS) to HD (Mini-SAS)

Part #: CBL-SAST-0508-01 Length: 50 cm (19 inches)

Part #: CBL-SAST-0507-01 Length: 80 cm (31 inches)

Description: This cable has an iPass (SFF-8087/Mini-SAS) connector (36-pin) at one end and a Mini-SAS HD (SFF-8643) connector at the other end. It connects from the SAS2 HBA to the BPN-SAS3-846EL backplane.

Cable name: Internal HD (Mini-SAS) to HD (Mini-SAS)

Part #: CBL-SAST-0568 Length: 35 cm (13 inches)

Part #: CBL-SAST-0593 Length: 60 cm (23 inches)

Part #: CBL-SAST-0531 Length: 80 cm (31 inches)

Description: This cable has a Mini-SAS HD (SFF-8643) connector at both ends. It connects from the SAS3 HBA to the BPN-SAS3-846EL backplane.

B-9 Failover

The BPN-SAS3-846EL2 model backplane has two expanders which enable effective failover and recovery.

Single Host Bus Adapter

In a single host bus configuration, the backplane connects to one host bus adapter.

Figure B-7. Single HBA

Single Host Bus Adapter Failover

If the expander or data path in Port A fails, the system automatically switches to Port B with application software or failover support.

Figure B-8. Single HBA Failover

Failover with RAID Cards and Multiple HBAs

The BPN-SAS3-846EL backplane may be configured for failover with multiple HBAs using either RAID controllers or HBAs to achieve failover protection.

RAID Controllers: If RAID controllers are used, then the failover is accomplished through port failover on the same RAID card.

HBAs: If multiple HBAs are used to achieve failover protection and load balancing, Linux MPIO software must be installed and correctly configured to perform the load balancing and failover tasks.

Dual Host Bus Adapter

In a dual host bus configuration, the backplane connects to two HBAs.

Figure B-9. Dual HBA

Dual Host Bus Adapter Failover

If the expander or data path in Port A fails, the system automatically switches to Port B. This maintains a full connection to all drives.

graph TD
    A["SAS HBA"] --> B["Port B Expander 2"]
    C["SAS HBA"] --> D["Port A Expander 1"]
    E["SEC"] --> F["J52"]
    E --> G["J51"]
    H["PRI"] --> I["J50"]
    H --> J["J49"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    style E fill:#ccf,stroke:#333
    style F fill:#cfc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#fcc,stroke:#333
    style I fill:#fcc,stroke:#333

Figure B-10 Dual HBA Failover

IMPORTANT: For RAID controllers, redundancy is achieved through port failover. For multiple HBAs MPIO software is required to achieve failover protection.

B-12 JBOD Control Board

In a cascaded configuration, the first chassis includes a motherboard and at least one host bus adapter (HBA). Other storage enclosures in the system must be equipped with a JBOD control board. This board controls power and provides some management over the chassis components. For more information, see Appendix C in this manual, or the Supermicro web site at www.supermicro.com.

The SC846B JBOD chassis includes the JBOD control board.

Figure B-11. SAS I²C Cabling

B-13 Connecting an External HBA to the Backplane

This backplane supports external host bus adapters. In this configuration, the HBA and the backplane are in different physical chassis. This allows adding a JBOD storage enclosure to an existing system.

Single External Host Bus Adapter

Figure B-13. Single External Host Adapter

Dual External Host Bus Adapter

Figure B-14. Dual External Host Bus Adapter

IMPORTANT: See Failover with RAID Cards and Multiple HBAs, in this manual for important information on supported configurations.

Single HBA Configuration Cables

Coiled brown cable with yellow connectors, lying on a plain blue background (no text or symbols visible)

Figure B-16. External Mini-SAS HD to External Mini-SAS HD Cable

Cable Name: 1 Meter External Mini-SAS HD to External Mini-SAS HD Cable

Part #: CBL-SAST-0573

Ports: Single

Placement: External Cable

Description: External cascading cable, connects ports between servers and JBODs.

Electronic device with two Ethernet ports and a green network card (no visible text or symbols)

Figure B-17. Mini-SAS HD Internal to External Adapter

Cable Name: 16-port Mini-SAS HD Internal to External Cable Adapter

Part #: AOM-SAS3-16I16E

Ports: Four wide ports (sixteen ports total)

Placement: Internal cable with adapter

Description: Internal cable, connects the SAS3 backplane to external ports.

Connecting Multiple Backplanes in a Single Channel Environment

This section describes the cables used when cascading from a single HBA. These connections use CBL-SAST-0531 internal cables and CBL-SAST-0573 external cables.

graph TD
    subgraph HBA
        A["Port B Expander 2"] --> B["Port A Expander 1"]
        B --> C["CBL-SAST-0531 Internal Cable"]
        B --> D["Mini-SAS HD Internal to External Adapter AOM-SAS3-16I16E-LP"]
        E["Port B Expander 2"] --> F["Port A Expander 1"]
        F --> G["CBL-SAST-0573 External Cable"]
    end
    HBA -->|J50 J49| B
    HBA -->|J50 J49| F
    HBA -->|J50 J49| B
    style HBA fill:#f9f,stroke:#333
    style Port B fill:#ccf,stroke:#333
    style Port A fill:#ccf,stroke:#333
    style CBL-SAST-0531 fill:#dfd,stroke:#333
    style Mini-SAS HD fill:#dfd,stroke:#333
    style Port B fill:#dfd,stroke:#333
    style Port A fill:#dfd,stroke:#333

Figure B-15. Single HBA Configuration

Connecting Multiple Backplanes in a Dual Channel Environment

This section describes the cables used when cascading from dual HBAs. These connections use CBL-SAST-0531 internal cables and CBL-SAST-0573 external cables.

graph TD
    subgraph_Port_A_Expander_1["Port A Expander 1"]
        A1["Port B Expander 2"] -->|HBA| B1["SEC J52 J51"]
        A1 -->|HBA| B2["PRI J50 J49"]
    end
    subgraph_Port_B_Expander_2["Port B Expander 2"]
        B1 -->|J52| C1["SEC J52 J51"]
        B1 -->|J52| C2["PRI J50 J49"]
    end
    subgraph_CBL_SAST_0531_External_Cable["CBL-SAST-0531 Internal Cable"]
        C1 --> D1["External Cable"]
        C2 --> D2["External Cable"]
    end
    A1 -->|J50| B1
    A1 -->|J49| B2
    B1 -->|J50| C1
    B1 -->|J49| C2
    C1 --> D1
    C2 --> D2
    D1 --> E["External Cable"]
    D2 --> E

Figure B-18. Dual HBA Configuration

IMPORTANT: See Section B-10 of this manual, Failover with RAID Cards and Multiple HBAs for important information on supported configurations.

Appendix C

Compliance

Regulatory Compliance

FCC, ICES, CE, UKCA, VCCI, RCM, NRTL, CB

Applied Directives, Standards

EMC/EMI: 2014/30/EU (EMC Directive)

Electromagnetic Compatibility Regulations 2016

FCC Part 15 Subpart B

ICES-003

VCCI-CISPR 32

AS/NZS CISPR 32

BS/EN55032

BS/EN55035

CISPR 32

CISPR 24/CISPR 35

BS/EN 61000-3-2

BS/EN 61000-3-3

BS/EN 61000-4-2

BS/EN 61000-4-3

BS/EN 61000-4-4

BS/EN 61000-4-5

BS/EN 61000-4-6

BS/EN 61000-4-8

BS/EN 61000-4-11

Environment:

2011/65/EU (RoHS Directive)

EC 1907/2006 (REACH)

2012/19/EU (WEEE Directive)

California Proposition 65

Product Safety: 2014/35/EU (LVD Directive)

UL/CSA 62368-1 (USA and Canada)

Electrical Equipment (Safety) Regulations 2016

IEC/BS/EN 62368-1

Perchlorate Warning

California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. "Perchlorate Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate"

Disclaimer (cont.)

The products sold by Supermicro are not intended for and will not be used in life support systems, medical equipment, nuclear facilities or systems, aircraft, aircraft devices, aircraft/emergency communication devices or other critical systems whose failure to perform be reasonably expected to result in significant injury or loss of life or catastrophic property damage. Accordingly, Supermicro disclaims any and all liability, and should buyer use or sell such products for use in such ultra-hazardous applications, it does so entirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend and hold Supermicro harmless for and against any and all claims, demands, actions, litigation, and proceedings of any kind arising out of or related to such ultra-hazardous use or sale.