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
WIDTH/HEIGHT
ROTATIONAL SPEED
CAPACITIES
SATA 3 Gb/s
3.5-inch/1-inch
7200 RPM
250 GB to 2 TB
MODEL NUMBERS
Note: Not all products may be
available in all regions of the
world.
WD2003FYYS
WD1003FBYX
WD5003ABYX
WD2503ABYX
Product Benefits
Massive capacity
Dual actuator technology
Multi-axis shock sensor
Thermal extended burn-in test
WD RE4 Enterprise SATA drives are
available with up to 2 TB of cavernous
capacity.
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)
Automatically detects the subtlest shock
events and compensates to protect the
data.
Each drive is put through extended burn-
in testing with thermal cycling to ensure
reliable operation.
Dual processor
With double the processing power,
WD RE4 boasts the highest performance
of any drive in the WD RE family.
RAID-specific, time-limited error Third generation dynamic fly
recovery (TLER)
Prevents drive fallout caused by the
extended hard drive error-recovery
processes common to desktop drives.
height
Each read-write head’s fly height is
adjusted in real time for optimum
reliability.
RAFF™
StableTrac™
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.
24x7 reliability
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.
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)
With 1.2 million hours MTBF (tested at
100% duty cycle), these drives have the
highest available reliability rating on a
high-capacity drive.
IntelliSeek™
Calculates optimum seek speeds to lower
power consumption, noise, and vibration.
Applications
Ideal for servers, storage arrays, video surveillance, and other demanding applications.
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