Western Digital WD RE4-GP User Manual

WD RE4-GP

Power-saving Hard Drives

Faster Performance

Reduced Power Consumption

Lower Cost of Ownership

Enterprise Hard Drives

Faster and Greener.

This new generation of WD RE-GP drives takes advantage of the
performance improvements offered in our WD RE3 family of drives
and adds advanced power management technology to deliver a
faster, greener solution for large-scale data centers.

Ideal for large data centers, web
service providers, commercial
grade surveillance systems and
organizations requiring huge
amounts of storage.

Faster – 64 MB cache, dual processors, and increased areal

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density yield twice the processing power results up to a 25%
performance improvement over the previous generation.

Greener – Improvements in our power-conserving

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technologies — IntelliSeek™, IntelliPark™, and IntelliPower™—
deliver improved power consumption over our previous
generation of WD RE-GP drive.

Improved rotary vibration tolerance – Optimized drive

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mechanics, system characterization, and process validation
yields unmatched performance in high vibration environments.

Lower total cost of ownership – Large data-hungry

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organizations such as financial institutions and web service
providers may realize up to $10 savings per drive per year in
electricity costs (U.S.). A large data center with 10,000 drives
could realize up to $100,000 in saving per year.

WD RE4-GP Power-saving Hard Drives

Key Features Key Specifications

24x7 reliability – With 1.2 million hours MTBF, these drives have

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the highest available reliability rating on a high-capacity drive.

IntelliPower – A fine-tuned balance of spin speed, transfer rate,

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and caching algorithms designed to deliver both significant power
savings and solid performance.

IntelliSeek – Calculates optimum seek speeds to lower

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unnecessary power consumption, noise, and vibration.

IntelliPark – Delivers lower power consumption by automatically

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unloading recording heads during idle to reduce aerodynamic drag,
and by disengaging read/write channel electronics.

Active Power Management – WD drives with GreenPower™

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technology monitor work load and automatically invoke idle
mode whenever possible to further reduce unnecessary power
consumption. Drive recovery time from idle mode is less than one
second, providing seamless power management between the drive
and the host controller.

Interface: SATA
Form Factor: 3.5-inch
MTBF: 1.2 million hours
Limited Warranty: 5-year

Capacities

2 TB

Model Numbers

WD2002FYPS

Enterprise Hard Drives

StableTrac™ – Secures the motor shaft at both ends to reduce

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system-induced vibration and stabilize platters for accurate
tracking, during read and write operations.

RAID-specific time-limited error recovery (TLER) – Pioneered

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by WD, this feature prevents drive fallout caused by the extended
hard drive error-recovery processes common to desktop drives.

Rotary Acceleration Feed Forward (RAFF™) – Optimizes

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operation and performance when the drives are used in
vibration-prone multi-drive systems such as rack mounted servers.

Western Digital, WD, the WD logo, and Put Your Life On It are registered trademarks in the U.S. and other countries; and GreenPower, IntelliPower, IntelliSeek,
IntelliPark, StableTrac, and RAFF are trademarks of Western Digital Technologies, Inc. Other marks may be mentioned herein that belong to other companies.
Pictures shown may vary from actual product. Not all products may be available in all regions of the world. All product and packaging specifications subject to
change without notice. Warranty may vary by region. Visit support.wdc.com/warranty for details.

© 2009 Western Digital Technologies, Inc. All rights reserved.

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 transfer rate or interface, megabyte per second (M B/s) = one million bytes per
second, and gigabit per second (Gb/s) = one billion bits per second.

2178-771113-A00 Apr 2009