Western Digital Computer Drive 7200 User 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  
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 heads 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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