Western Digital Enterprise WD RE4 Operation manual

WD RE4
Enterprise SATA Hard Drives
Ideal for servers, video surveillance, and other demanding
write-intensive applications, WD RE4 7200 RPM Enterprise
SATA hard drives offer up to 2 TB capacity, 64 MB cache,
4th generation vibration tolerance and 5-year limited
warranty.
INTERFACE
SATA 3 Gb/s
WIDTH/HEIGHT
3.5-inch/1-inch
ROTATIONAL SPEED
7200 RPM
CAPACITIES
250 GB to 2 TB
MODEL NUMBERS
WD2003FYYS WD5003ABYX
WD1003FBYX WD2503ABYX
Note: Not all products may be
available in all regions of the
world.
Massive capacity
WD RE4 Enterprise SATA drives are
available with up to 2 TB of cavernous
capacity.
Dual processor
With double the processing power,
WD RE4 boasts the highest performance
of any drive in the WD RE family.
RAFF™
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 the
previous generation of drives.
Dual actuator technology
A head positioning system with two
actuators that improves positional
accuracy over the data track(s). The
primary actuator provides coarse
displacement using conventional
electromagnetic actuator principles. The
secondary actuator uses piezoelectric
motion to fine tune the head positioning
to a higher degree of accuracy. (2 TB
only)
StableTrac™
The motor shaft is secured at both ends
to reduce system-induced vibration and
stabilize platters for accurate tracking
during read and write operations. (1 TB
and larger drives only)
IntelliSeek™
Calculates optimum seek speeds to lower
power consumption, noise, and vibration.
Multi-axis shock sensor
Automatically detects the subtlest shock
events and compensates to protect the
data.
RAID-specific, time-limited error
recovery (TLER)
Prevents drive fallout caused by the
extended hard drive error-recovery
processes common to desktop drives.
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.
Thermal extended burn-in test
Each drive is put through extended burn-
in testing with thermal cycling to ensure
reliable operation.
Third generation dynamic fly
height
Each read-write head’s fly height is
adjusted in real time for optimum
reliability.
24x7 reliability
With 1.2 million hours MTBF (tested at
100% duty cycle), these drives have the
highest available reliability rating on a
high-capacity drive.
Product Benefits
Applications
Ideal for servers, storage arrays, video surveillance, and other demanding applications.

WD RE4
Specifications12 TB 1 TB 500 GB 250 GB
Model number WD2003FYYS WD1003FBYX WD5003ABYX WD2503ABYX
Interface SATA 3 Gb/s SATA 3 Gb/s SATA 3 Gb/s SATA 3 Gb/s
Formatted capacity 2 TB 1 TB 500 GB 251 GB
User sectors per drive 3,907,029,168 1,953,525,168 976,773,168 490,350,672
Native command queuing Yes Yes Yes Yes
SATA latching connector Yes Yes Yes Yes
Form factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch
Performance
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
3 Gb/s
138 MB/s
3 Gb/s
128 MB/s
3 Gb/s
128 MB/s
3 Gb/s
128 MB/s
Cache (MB) 64 64 64 64
Rotational speed (RPM) 7200 7200 7200 7200
Average drive ready time (sec) 21 18 14 14
Configuration/Organization
Heads/disks 8/4 4/2 2/1 1/1
Bytes per sector (STD) 512 512 512 512
Reliability/Data Integrity
Load/unload cycles2600,000 600,000 600,000 600,000
Non-recoverable read errors per bits read <1 in 1015 <1 in 1015 <1 in 1015 <1 in 1015
Limited warranty (years)35555
Power Management
12VDC (A, max) 1.8 1.6 2.25 2.25
Average power requirements (W)
Read/Write
Idle
Standby
Sleep
10.7
8.2
1.3
1.3
7.9
5.9
0.7
0.7
6.4
4.5
0.8
0.8
6.4
4.5
0.8
0.8
Environmental Specifications4
Temperature (°C)
Operating
Non-operating
5 to 55
-40 to 70
5 to 55
-40 to 70
5 to 55
-40 to 70
5 to 55
-40 to 70
Shock (Gs)
Operating (2 ms, read/write)
Operating (2 ms, read)
Non-operating (2 ms)
30
65
300
30
65
300
30
65
350
30
65
350
Average acoustics (dBA)5
Idle mode
Performance seek mode
Quiet seek mode
29
34
30
28
33
29
27
30
29
27
30
29
Physical Dimensions
Height (in./mm, max) 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
Width (in./mm, ± .01 in.) 4/101.6 4/101.6 4/101.6 4/101.6
Weight (lb./kg, ± 10%) 1.66/0.75 1.49/0.68 0.99/0.45 0.99/0.45
1As 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 3 Gb/s transfer rate calculated according to the Serial ATA specification published by the SATA-
IO organization as of the date of this specification sheet. Visit www.sata-io.org for details.
2Controlled unload at ambient condition
3The term of the limited warranty may vary by region. Visit support.wdc.com/warranty for details.
4No non-recoverable errors during operating tests or after non-operating tests.
5Sound power level.
Canada ICES-003 Class B / NMB-003 Classe B
Western Digital
3355 Michelson Drive, Suite 100
Irvine, California 92612
U.S.A.
For service and literature:
http://support.wdc.com
www.westerndigital.com
800.ASK.4WDC North America
800.832.4778 Spanish
+800.6008.6008 Asia Pacific
00800.27549338 Europe
(toll free where available)
+31.880062100 Europe/Middle East/Africa
Western Digital, WD, the WD logo, and Put Your Life On It are registered trademarks in the U.S. and other countries; and NoTouch, IntelliSeek, StableTrac, RAFF, 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.
© 2011 Western Digital Technologies, Inc. All rights reserved.
2879-701338-A06 Sep 2011