Red Pro WD181KFGX - Hard Drive WESTERN DIGITAL - Free user manual and instructions

Product Type	Hard Drive
Brand	Western Digital
Model	Red Pro WD181KFGX
Capacity	18 TB
Form Factor	3.5-inch
Interface	SATA 6 Gb/s
Rotational Speed	7200 RPM
Cache	512 MB
Dimensions (L x W x H)	147 x 101.6 x 26.1 mm
Weight	670 g
Power Consumption (Read/Write)	7.5 W
Power Consumption (Idle)	6.5 W
Operating Temperature	0°C to 65°C
Non-Operating Temperature	-40°C to 70°C
MTBF	1,000,000 hours
Warranty	5 years limited
Maintenance and Cleaning	Do not disassemble; use compressed air for dust removal; avoid liquids.
Safety Information	Handle with care; avoid shocks; ensure proper ventilation; use anti-static precautions.
Spare Parts and Repairability	No user-serviceable parts; contact WD support for replacement.
General Information	Designed for NAS systems with up to 24 bays; supports RAID configurations.

Frequently Asked Questions - Red Pro WD181KFGX WESTERN DIGITAL

What is the capacity of the Western Digital Red Pro WD181KFGX?

The WD181KFGX has a capacity of 18 TB.

Is the WD Red Pro WD181KFGX suitable for NAS systems?

Yes, it is specifically designed for NAS systems with up to 24 bays and supports RAID configurations.

What is the rotational speed of this drive?

The drive spins at 7200 RPM, providing fast data access.

What interface does the WD181KFGX use?

It uses SATA 6 Gb/s interface, backward compatible with SATA 3 Gb/s.

How much cache does the WD Red Pro have?

It features 512 MB of cache for improved performance.

What are the operating temperature limits?

Operating temperature range is 0°C to 65°C; non-operating is -40°C to 70°C.

How to clean and maintain the hard drive?

Do not disassemble; clean exterior with a dry cloth, use compressed air for vents, and avoid liquids.

What is the warranty period for the WD Red Pro?

Western Digital offers a 5-year limited warranty for this model.

What is the power consumption of this drive?

Typical power consumption is 7.5 W during read/write and 6.5 W at idle.

Can I use this drive in a desktop PC?

Yes, it can be used in desktops, but it is optimized for 24/7 NAS operation with RAID compatibility.

USER MANUAL Red Pro WD181KFGX WESTERN DIGITAL

Product Highlights

• Available in capacities ranging from 2-18TB with support for up to 24 bays
• Supports up to 300 TB/yr workload rate
- Enhanced reliability with 3D Active Balance™ Plus technology and error recovery controls with NASware™ 3.0 technology
- Extended drive testing to ensure each drive is tested for extended reliable operation
• 5-year limited warranty

Desktop Drives vs. WD Red™ Pro

Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS:

• Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance.
• Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren't typically designed and tested under those conditions like WD Red™ Pro drives are.
• Error Recovery Controls: WD Red Pro NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system.
• Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red Pro drives are designed to thrive in multi-bay NAS system environments.

For the Demands of Big Business

Designed specifically with medium or large scale business customers in mind, WD Red ^™ Pro drives are available for up to 24-bay NAS systems. Engineered to handle high-intensity workloads in 24×7 environments, WD Red Pro is ideal for archiving and sharing, as well as RAID array rebuilding on extended operating systems such as ZFS or other file systems. These drives add value to your business by enabling your employees to quickly share their files and back-up folders reliably in your NAS solution.

Exclusive NASware™ 3.0 Technology

Our exclusive advanced firmware technology, NASware™ 3.0, enables seamless integration, robust data protection and optimal performance for NAS systems operating under heavy demand. Built into every WD Red Pro hard drive, NASware 3.0's advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability.

Built for Optimum NAS Compatibility

WD Red Pro drives with NASware technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red Pro drive is one of the most compatible drives available for NAS enclosures. But don't take our word for it. WD Red Pro drives are a reflection of extensive NAS partner technology engagement and compatibility-testing.

Larger NAS Bay Shock Protection

WD Red Pro drives are equipped with a multi-axis shock sensor that automatically detects subtle shock events and dynamic fly height technology which adjusts each read-write function to compensate and protect the data. This combination of technology further protects the drives in larger 24-bay NAS environments and helps increase hard drive reliability.

3D Active Balance Plus

Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time.

Error Recovery Prevention

Built specifically for RAID and NAS environments, WD Red Pro drives come equipped with error recovery controls as part of NASware 3.0 technology to help reduce drive fallout in RAID applications.

Extended Drive Testing

A NAS environment that has up to 24 bays is very demanding on a hard drive with added vibration and heat. This is why every WD Red Pro drive is shipped with extended thermal cycle burn-in testing to help ensure each drive is tested for extended reliable operation.

Longer Warranty Coverage

WD Red Pro drives comes with a 5-year limited warranty for an even greater peace of mind.

PRODUCT BRIEF

NAS HARD DRIVES

Specifications

	18TB	16TB	14TB	12TB	10TB
Model Number1	WD181KFGX	WD161KFGX	WD141KFGX	WD121KFBX	WD102KFBX
Recording Technology CMR CMR CMR CMR CMR
Interface SATA 6 Go/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s
Formatted capacity2	18TB	16TB	14TB	12TB	10TB
Form factor 3.5 inch 3.5 inch 3.5 inch 3.5 inch
Native command queuing	Yes	Yes	Yes	Yes	Yes
Advanced Format (AF)	Yes	Yes	Yes	Yes	Yes
RoHS compliant3	Yes	Yes	Yes	Yes	Yes
Performance
Interface Transfer Rate (max) Interface Speed	6 Gb/s	6 Gb/s	6 Gb/s	6 Gb/s	6 Gb/s
Interface Transfer Rate (max) Internal Transfer Rate	272 MB/s	259 MB/s	255 MB/s	240 MB/s	265 MB/s
Cache (MB)5	512	512	512	256	256
RPM	7200	7200	7200	7200	7200
Reliability/Data Integrity
Load/unload cycles6	600,000	600,000	600,000	600,000	600,000
Non-recoverable errors per bits read	<10 in 10a	<10 in 10b	<10 in 10c	<10 in 10d	<10 in 10e
MTBF (hours)f	1,000,000	1,000,000	1,000,000	1,000,000	1,000,000
Workload Rate (TB/year)g	300	300	300	300	300
Limited warranty (years)h	5	5	5	5	5
Power Management
12VDC ±5% (A, peak)			1.85	1.8	1.75
5VDC ±5% (A, peak)	1.80	1.80
Average power requirements (W)
Read/Write	6.1	6.1	6.2	6.0	8.4
Idle	3.6	3.6	3.0	2.8	4.6
Standby and Sleep	0.9	0.9	0.8	0.6	0.5
Environmental Specifications10
Temperature (°C)
Operating	0 to 65	0 to 65	0 to 65	0 to 65	0 to 65
Non-operating	-40 to 70	-40 to 70	-40 to 70	-40 to 70	-40 to 70
Shock (Gs)
Operating, (2 ms, read/write)	30	30	30	30	30
Operating, (2 ms, read)	50	50	65	65	65
Non-operating (2 ms)	250	250	300	300	250
Acoustics (dBA)10
Idle	20	20	20	20	34
Seek (average)	36	36	36	36	38
Physical Dimensions
Height (in./mm, max)	1.028/26.1	1.028/26.1	1.028/26.1	1.028/26.1	1.028/26.1
Length (in./mm, max)	5.787/147	5.787/147	5.787/147	5.787/147	5.787/147
Width (in./mm, ± .01 in.)	4/101.6	4/101.6	4/101.6	4/101.6	4/101.6
Weight (lb/kg, ± 10%)	1.52/0.69	1.52/0.69	1.52/0.69	1.46/0.66	1.65/0.75

PRODUCT BRIEF

NAS HARD DRIVES

Specifications

	10TB	8TB	6TB	4TB	2TB
Model Number1	WD101KFBX	WD8003FFBX	WD6003FFBX	WD4003FFBX	WD2002FFSX
Recording Technology CMR CMR CMR CMR CMR
Interface SATA 6 Go/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s
Formatted capacity2	10TB	8TB	6TB	4TB	2TB
Form factor	3.5 inch	3.5 inch	3.5 inch	3.5 inch	3.5 inch
Native command queuing	Yes	Yes	Yes	Yes	Yes
Advanced Format (AF)	Yes	Yes	Yes	Yes	Yes
RoHS compliant3	Yes	Yes	Yes	Yes	Yes
Performance
Interface Transfer Rate (max) Interface Speed	6 Gb/s	6 Gb/s	6 Gb/s	6 Gb/s	6 Gb/s
Interface Transfer Rate (max) Internal Transfer Rate	240 MB/s	235 MB/s	238 MB/s	217 MB/s	164 MB/s
Cache (MB)5	256	256	256	256	64
RPM	7200	7200	7200	7200	7200
Reliability/Data Integrity
Load/unload cycles6	600,000	600,000	600,000	600,000	600,000
Non-recoverable errors per bits read	<10 in 10^4	<10 in 10^16	<10 in 10^16	<10 in 10^9	<10 in 10^16
MTBF (hours)7	1,000,000	1,000,000	1,000,000	1,000,000	1,000,000
Workload Rate (TB/year)8	300 300	300	300 300
Limited warranty (years)9	5	5	5	5	5
Power Management
12VDC 15% (A, peak)	1.80	2.08	1.79	1.79	1.90
5VDC ±5% (A, peak)
Average power requirements (W)
Read/Write	5.7	8.8	7.2	7.2	7.8
Idle	2.8	4.6	3.7	3.7	6.0
Standby and Sleep	0.5	0.7	0.4	0.4	1.4
Environmental Specifications10
Temperature (°C)
Operating	0 to 65	0 to 65	0 to 65	0 to 65	0 to 65
Non-operating	-40 to 70	-40 to 70	-40 to 70	-40 to 70	-40 to 70
Shock (Gs)
Operating, (2 ms, read/write)	30	30	30	30	30
Operating, (2 ms, read)	65	65	65	65	65
Non-operating (2 ms)	300	300	300	300	300
Acoustics (dBA)
Idle	20	29	29	29	29
Seek (average)	36	36	36	36	31
Physical Dimensions
Height (in./mm, max)	1.028/26.1	1.028/26.1	1.028/26.1	1.028/26.1	1.028/26.1
Length (in./mm, max)	5.787/147	5.787/147	5.787/147	5.787/147	5.787/147
Width (in./mm, ± .01 in.)	4/101.6	4/101.6	4/101.6	4/101.6	4/101.6
Weight (lb/kg, ± 10%)	1.43/0.65	1.58/0.72	1.58/0.72	1.58/0.72	1.58/0.72

Specifications subject to change without notice.
Not all products may be available in all regions of the word
^2 As used for storage capacity, one gigabyte (GB) = one billion bytes and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment.
^3 WID hard drive products manufactures and sold worldwide after June 8, 2011, meet or exceed Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the RoHS Directive 2011/65/EU
^4 Up to stated speed. As used for transfer rate, 1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.
^5 As used for cache, one megabyte (MB) = 1,048,576 bytes
^6 Controlled unload at ambient condition.

Western Digital.

5601 Great Oaks Parkway

San Jose, CA 95119, USA

www.westerndigital.com

^7 MTBF specifications are based upon internal testing using a 40°C base casting temperature. MTBF is based on a sample population and is estimated by statistical measurements and acceleration algorithms. MTBF does not predict an individual drive's reliability and does not constitute a warranty,
^6 Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is announced (18 transferred x (8/50 / recorded power on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
* See http://support.wd.com/warranty for regionally specific warranty details.
^12 Power measurements at room-ambient temperature

© 2020 Western Digital Corporation or its affiliates. All rights reserved. Western Digital, the Western Digital Logo, NASware and WD Red are registered trademarks or trademarks of Western Digital Corporation or its affiliates in the U.S. and/or other countries. All other marks are the property of their respective owners. Pictures shown may vary from actual products. Product specifications subject to change without notice.