WD WD2503ABYZ User Manual
™
WD Re
Datacenter Capacity HDD
Performance-optimized high-capacity storage
for high-intensity applications.
With advanced technology that delivers consistent high performance
in a multitude of applications, and with up to ten times the workload
capability of desktop drives, the WD Re drive is the workhorse of
WD’s datacenter portfolio. The WD Re drive is perfect for high-availability
storage arrays that demand a robust storage device, and the drive’s
high performance, capacity and reliability make it ideal for data
warehousing/mining and high-performance computing. The WD Re is
available with a SATA interface for maximum flexibility and compatibility.
INTERFACE
SATA 6 Gb/s
MODEL NUMBERS
WD1003FBYZ
WD5003ABYZ
WD2503ABYZ
Product Benefits
High capacity nearline drive
Massive capacities up to 6 TB
suit even the most demanding
datacenter, enterprise server,
or cloud storage needs.
Designed for high-intensity
applications
Designed to handle workloads up
to 550 TB per year – among the
highest workload capability of any
3.5-inch hard drive – delivering both
performance and reliability to any
datacenter environment.
Multi-axis shock sensor
Automatically detects the subtlest
shock events and compensates
to protect the data.
WIDTH/HEIGHT
3.5-inch/1-inch
Vibration Protection
Enhanced RAFF™ technology
includes sophisticated electronics
to monitor the drive and correct
both linear and rotational vibration
in real time. The result is a significant
performance improvement in
high vibration environments
over desktop drives.
RAID-specific, time-limited error
recovery (TLER)
Reduces drive fallout caused by the
extended hard drive error-recovery
processes common to desktop drives.
ROTATIONAL SPEED
7200 RPM
Designed for quality and reliability
With 1.2 million hours MTBF, these
drives ensure one of the highest level
reliability ratings for high-capacity
enterprise storage needs.
NoTouch™ ramp load technology
The recording head never
touches the disk media ensuring
significantly less wear to the
recording head and media as well
as better drive protection in transit.
CAPACITIES
250 GB to 1 TB
Thermal extended burn-in test
Each drive is put through extended
burn-in testing with thermal cycling
to ensure reliable operation.
Dynamic fly height technology
Each read-write head’s fly height
is adjusted in real time for
optimum reliability.
Applications
Online Analytical Processing (OLAP), data warehousing/mining, high-performance computing, high-end NAS /SAN and surveillance systems, and high-availability
cloud storage arrays.
The WD Advantage
WD puts our datacenter products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch. This testing ensures our products consistently
meet the high quality and reliability standards of the WD brand. Following a FIT test the Enterprise System Group (ESG) testing validates interoperability with HBAs,
operating systems and drivers to ensure an even greater level of quality, reliability and peace of mind.
WD also has a detailed Knowledge Base with helpful articles and software utilities. Our customer support lines have long operational hours to ensure you get the
help you need when you need it. Our toll-free customer support lines are here to help or you can access our WD Support site for additional details.
WD Re
™
Specifications 1 TB 500 GB 250 GB
512 native model number
Interface SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s
Formatted capacity
1
2
User sectors per drive 1,953,525,168 976,773,168 490,350,672
Native command queuing Yes Yes Yes
Form factor 3.5-inch 3.5-inch 3.5-inch
RoHS compliant
3
Performance
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
Cache (MB) 64 64 64
Rotational speed (RPM) 7200 7200 7200
Reliability/Data Integrity
Load/unload cycles
Non-recoverable read errors per bits read <1 in 10
MTBF (hours)
5
AFR (%)
Limited warranty (years)
4
5
6
Power Management
Average power requirements (W)
Sequential read
Sequential write
Random read/write
Idle
Environmental Specifications
Temperature (°C)
Operating
Non-operating
Shock (Gs)
Operating (2 ms, read/write)
Operating (2 ms, read)
Non-operating (2 ms)
Acoustics (dBA)
Idle
Seek (average)
8
7
Physical Dimensions
Height (in./mm, max) 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
Width (in./mm, ± .01 in.) 4/101.6 4/101.6 4/101.6
Weight (lb./kg, ± 10%) 1.49/0.68 0.99/0.45 0.99/0.45
WD1003FBYZ WD5003ABYZ WD2503ABYZ
1 TB 500 GB 251 GB
Yes Yes Yes
6 Gb/s
128 MB/s
600,000 600,000 600,000
15
6 Gb/s
128 MB/s
6 Gb/s
128 MB/s
<1 in 1015 <1 in 10
15
1,200,000 1,200,000 1,200,000
0.73 0.73 0.73
5 5 5
8.2
8.3
8.6
5.9
5 to 55
-40 to 70
30
65
300
28
33
6.5
6.4
6.3
4.4
5 to 55
-40 to 70
30
65
350
27
30
6.5
6.4
6.3
4.4
5 to 55
-40 to 70
30
65
350
27
30
1
Not all products may be available in all regions of the world.
2
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate
or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second. Effective maximum SATA 6 Gb/s transfer rate calculated according to the Serial ATA specication published by the SATA-IO organization as of the date of this specication sheet. Visit
www.sata-io.org for details.
3
WD hard drive products manufactured 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
Controlled unload at ambient condition.
5
Product MTBF and AFR specications are based upon a 40°C base casting temperature and system workload of 550 TB/year (workload is dened as the amount of user data transferred to or from the hard drive).
6
See http://support.wd.com/warranty for regional specic warranty details.
7
No non-recoverable errors during operating tests or after non-operating tests.
8
Sound power level.
Western Digital Technologies, Inc.
3355 Michelson Drive, Suite 100
Irvine, California 92612
U.S.A.
For service and literature:
http://support.wd.com
www.wd.com
800.ASK.4WDC
(800.275.4932)
800.832.4778 Spanish
+86.21.2603.7560 Asia Pacific
00800.27549338 Europe
+31.880062100 Europe/Middle East/
North America
(toll free where available)
Africa
CAN ICES-3 (B) / NMB-3 (B)
Western Digital, WD, and the WD logo are registered trademarks in the U.S. and other
countries; and WD Re, RAFF, NoTouch, StableTrac, and FIT Lab are trademarks of
Western Digital Technologies, Inc. Other marks may be mentioned herein that belong
to other companies. Product specifications subject to change without notice.
© 2015 Western Digital Technologies, Inc. All rights reserved.
2879-800044-A03 Aug 2015
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