Service Manuals, User Guides, Schematic Diagrams or docs for : Western Digital WD RE4-GP II
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WD RE4-GP
Power-Saving Hard Drives
Available in capacities up to 2 TB, WD RE4-GP SATA hard drives
offer data-hungry organizations massive capacity with significant
power savings and lower cost of ownership compared to
competitors' standard enterprise-class drives. These drives are
designed with WD GreenPower TechnologyTM to deliver power
savings as the primary attribute and are equipped with 64 MB
cache, dual processors, and IntelliPowerTM, a fine-tuned balance
of spin speed, transfer rate, and caching algorithms designed to
deliver both significant power savings and solid performance.
INTERFACE WIDTH/HEIGHT ROTATIONAL SPEED CAPACITIES
SATA 3.5-inch/1-inch IntelliPower 1.5 TB and 2 TB
MODEL NUMBERS Note: Not all products may be
WD2002FYPS available in all regions of the
WD1502FYPS world.
Product Benefits
Faster Improved rotary vibration Lower total cost of ownership 24x7 reliability
Massive 64 MB cache, dual processors, tolerance Large data-hungry financial institutions With 1.2 million hours MTBF, these drives
and increased areal density yield twice Optimized drive mechanics, system and web service providers can save up to have the highest available reliability rating
the processing power which results in up characterization, and process validation $10 savings per drive per year in on a high-capacity drive.
to 25 percent performance improvement yields unmatched performance in high electricity costs (U.S). A large data center
over the previous generation. vibration environments. with 10,000 drives could realize up to
$100,000 in savings per year.
Greener
Improvements in our power-conserving
technologies -- IntelliSeekTM,
IntelliParkTM, and IntelliPowerTM-- deliver
improved power consumption over our
previous generation of WD RE-GP drives.
Product Features
IntelliPower IntelliPark StableTracTM Rotary Acceleration Feed
A fine-tuned balance of spin speed, Delivers lower power consumption by Secures the motor shaft at both ends to Forward (RAFFTM)
transfer rate, and caching algorithms automatically unloading recording heads reduce system-induced vibration and Optimizes operation and performance
designed to deliver both significant power during idle to reduce aerodynamic drag, stabilize platters for accurate tracking when the drives are used in vibration-
savings and solid performance. and by disengaging read/write channel during read and write operations. prone multi-drive systems such as
Additionally, drives with WD GreenPower electronics. rackmounted servers.
Technology consume less current during RAID-specific time-limited error
start up allowing more drives to spin up Active Power Management
simultaneously resulting in faster system recovery (TLER)
readiness. Drives with WD GreenPower Technology Pioneered by WD, this feature prevents
monitor the work load and automatically drive fallout caused by the extended hard
IntelliSeek invoke idle mode whenever possible to drive error-recovery processes common
further reduce unnecessary power to desktop drives.
Calculates optimum seek speeds to lower consumption. Drive recovery time from
unnecessary power consumption, noise, idle mode is less than one second,
and vibration. providing seamless power management
between the drive and the host controller.
WD RE4-GP
Specifications 1
2 TB 1.5 TB
Model number WD2002FYPS WD1502FYPS
Interface SATA 3 Gb/s SATA 3 Gb/s
Formatted capacity 2 TB 1.5 TB
User sectors per drive 3,907,029,168 2,930,277,168
Native command queuing Yes Yes
SATA latching connector Yes Yes
Form factor 3.5-inch 3.5-inch
RoHS compliant2 Yes Yes
Performance
Data transfer rate (max)
Buffer to host 3 Gb/s 3 Gb/s
Host to/from drive (sustained) 110 MB/s 110 MB/s
Cache (MB) 64 64
Rotational speed (RPM) IntelliPower IntelliPower
Average drive ready time (sec) 17 17
Configuration/Organization
Heads/disks 8/4 6/3
Bytes per sector (STD) 512 512
Reliability/Data Integrity
Load/unload cycles3 600,000 600,000
Non-recoverable read errors per bits read <1 in 1015 <1 in 1015
Limited warranty (years)4 5 5
Power Management
12VDC (A, max) 1.8 1.8
Average power requirements (W)
Read/Write 6.8 7.4
Idle 3.7 4.0
Standby 0.8 1.1
Sleep 0.8 1.1
Environmental Specifications5
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