Western Digital Caviar WD2000JD Operation manual

1.5 Gb/s

(Serial ATA 1.0)

3.5-inch/1-inch

40 to 250 GB

WD400JD

WD800JD

WD1200JD

WD1600JD

WD2000JD

WD2500JD

Note: All products may

not be available in all

regions of the world.

Carrying on the heritage of WD Caviar SE hard drives as industry-leading performers, Western

Digital offers WD Caviar SE Serial ATA (SATA) hard drives which feature capacities as large as

250 GB and an 8 MB buffer, to fill acute demand in market segments such as high-end PC,

workstation, and entry-level servers. Designers of enterprise storage systems and servers are

increasingly using desktop-class, large-capacity SATA hard drives because of the advantages

provided by the SATA interface. Benefits include a data transfer rate of 150 MB/s and

improved cabling that enables greater system design flexibility.

Product Benefits

!8 MB cache – fast data transfer from a cache four times larger than the

industry-standard 2 MB size.

!7200 RPM – high-performance rotational speed for high-capacity hard drives.

!Data Lifeguard Tools™– software utility that works in conjunction with the embedded

Data Lifeguard™features (including shock protection, an environmental protection

system, and embedded error detection and repair features)to make hard drive installation,

management, and diagnostics simple and worry-free.

!SecureConnect™– provides a 500 percent stronger cable-to-drive connection than

first-generation SATA hard drives and cables; ensures backward compatibility with legacy

SATA cables and backplanes.

Note: Western Digital's SerialATA cable with SecureConnectis recommendedfor use with

all Western Digital Serial ATA hard drives.

!FlexPower™– connector technology that accepts power from both industry-standard and

new SATA power supplies.

!Point-to-point bus configuration – utilizes the full bandwidth of each drive interface in a

networked environment.

!Hot plug support – allows swapping of hard drives without having to power down the

system or reboot; promotes system design flexibility, data availability, and serviceability.

!Backplane compatibility – promotes expandability and flexibility in system architecture.

The Western Digital Promise

Western Digital understands the importance of the data stored on our hard drives. We are

committed to providing our customers with reliable, high-performance storage products and

superior customer support and services.

7200 RPM

Physical Specifications

40 GB 80 GB 120 GB 160 GB 200 GB 250 GB

Modelnumber WD400JD WD800JD WD1200JD WD1600JD WD2000JD WD2500JD

Interface 1.5 Gb/s 1.5 Gb/s 1.5 Gb/s 1.5 Gb/s 1.5 Gb/s 1.5 Gb/s

(Serial ATA1.0) (Serial ATA 1.0) (Serial ATA 1.0) (Serial ATA 1.0) (Serial ATA 1.0) (Serial ATA 1.0)

Form factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch

Formatted capacity140,020 MB 80,026 MB 120,034 MB 160,041 MB 200,049 MB 250,059 MB

User sectors per drive 78,165,360 156,301,488 234,441,648 312,581,808 390,721,968 488,397,168

Bytes per sector (STD) 512 512 512 512 512 512

Dedicatedlanding zone Yes Yes Yes Yes Yes Yes

Actuator latch/auto park Yes Yes Yes Yes Yes Yes

Warranty23-year 3-year 3-year 3-year 3-year 3-year

For service and literature:

support.wdc.com

www.westerndigital.com

WesternDigital, the Western Digitallogo,and

WD Caviar are registered trademarks, and

Data Lifeguard, Data Lifeguard Tools,

SecureConnect, FlexPower, and

FIT Lab are trademarks of Western Digital

Technologies, Inc. Other marks may be

mentioned herein that belong to other

companies. Product specifications subject to

change withoutnotice.

Western Digital

20511 Lake Forest Drive

Lake Forest, California 92630 U.S.A.

2879-001081-003 02/04

800.ASK.4WDC U.S.A.

+31.20.4467651 Europe

Performance Specifications

Read seek 8.9 ms (average)

Data Transfer Rate

-Buffer to host3150 MB/s

-Buffer to disk 748 Mbits/s max

Track-to-track seek42.0 ms (average)

Full stroke read seek421ms (average)

Average latency 4.2 ms

Rotational speed 7200 RPM

Read cache Adaptive

Write cache Yes

Buffer 8 MB

Drive ready time 9.0 sec average

Start/stopcycles 50,000min

LBA support Yes

Error rate

(non-recoverable) <1 in 1014 bits read

1 Western Digital defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes. Someoperating systems use

the binary numbering system which results in a lower reported capacity.

2 Three-year standard warranty on bulk WD Caviar SE Serial ATA hard drives. This standard warranty may be subject to variations

imposed by local law or regulations.

3 Effective maximum transfer rate running Serial ATA 1.0.

4 On reads and writes.

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