Western Digital RE2 160GB Hard Disc Drive

Overview

With 1.2 million hours MTBF, 5-year limited warranty, 3 Gb/s SATA technology, and enhanced vibration tolerance, WD RE2 drives offer an ideal combination of reliability, high capacity, and optimum performance for enterprise applications.

Key Features

Superior reliability - Designed and manufactured to provide server-class reliability in high duty cycle environments. With 1.2 million hours MTBF, these drives have the highest available reliability rating on a high-capacity drive.

High capacity - Up to 750 GB of storage packed with server-class features and low cost-per-gigabyte value.

Fast - With 3 Gb/s data transfer rate, native command queuing (NCQ), and 16 MB cache, these drives deliver optimum performance.

Low power - Active Power Save delivers best-in-class seek mode power consumption through an advanced WD firmware which conserves power in active seek modes without degrading performance.

RAID-specific, time-limited error recovery (TLER) - Significantly reduces drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.

Rotary Acceleration Feed Forward (RAFF) - Provides enhanced vibration tolerance by optimizing operation and performance when the drives are used in vibration-prone, multi- drive systems such as rack-mounted servers or network storage.

Perpendicular Magnetic Recording (PMR) - WD RE2 drives employ PMR technology to achieve even greater areal density.

5-year limited warranty

Performance Specifications

• Rotational Speed : 7,200 RPM (nominal)
• Buffer Size : 16 MB (average)
• Average Latency : 4.20 ms (nominal)
• Load/Unload Cycles : 50,000 minimum

Seek Times:
• Read Seek Time : 8.9 ms
• Write Seek Time : 8.9 ms (average)
• Track-To-Track Seek Time : 0.6 ms (average)
• Full Stroke Seek : 21.0 ms (average)

Transfer Rates:
• Buffer To Host (Serial ATA) : 3 Gb/s (Max)

• Formatted Capacity : 160,041 MB
• Capacity : 160 GB
• Interface : SATA 3 Gb/s
• Used Sectors Per Drive : 312,581,808

• Height : 25.4 mm (Max)
• Length : 147 mm (Max)
• Width : 101.6 mm
• Weight : 0.73 kg

Shock
• Operating Shock (Read) : 65G, 2 ms
• Non-operating Shock : 250G, 2 ms

Acoustics
• Idle Mode : 28 dBA (average)
• Seek Mode 0 : 33 dBA (average)
• Seek Mode 3 : 29 dBA (average)

Current Requirements
• Read/Write : 450 mA
• Idle : 430 mA
• Standby : 20 mA
• Sleep : 20 mA

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 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.