Western Digital WD1500ADFD - Raptor 150 GB Hard Drive, WD1500ADFDRTL - Raptor 150 GB SATA Hard Drive, Raptor WD740ADFD, WD740GDRTL - 74GB 10, 000 RPM SATA Raptor Hard Drive Product Specifications
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WD Raptor
Enterprise Hard Drives
Killer Speed
Unsurpassed Reliability
Optimum Value
®
Enterprise Hard Drives
Interface
SATA
Width/Height
3.5-inch/1-inch
Rotational Speed
10,000 RPM
Capacities
36 to 150 GB
Model Numbers
WD360ADFD
WD740ADFD
WD1500ADFD
Note: Not all products
may be available in all
regions of the world.
Some hard drive companies design desktop-class drives with the SATA
interface. To meet the demands of enterprise storage, WD is going one better.
WD is the only company combining a 10,000 RPM enterprise-class
mechanical platform with the SATA interface to meet all the demands of the
enterprise environment—reliability, performance, and reduced cost.
Product Benefits
WD produces the world’s most reliable SATA drives. With 1.2 million hours MTBF, enterprise
duty cycle, 5-year warranty, next-generation SATA technology, and state-of-the-art vibration
tolerance, WD Raptor drives offer the best combination of reliability, high capacity, and
performance for enterprise applications.
Product Features
Reliable — designed and manufactured to enterprise-class standards to provide enterprise
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.
Fast — with a next-generation SATA interface, 1.5 Gb/s data transfer rate, native command
queuing (NCQ), and 16 MB cache, these drives deliver optimum performance.
RAID-specific, time-limited error recovery (TLER) — a feature unique to WD, prevents
drive fallout caused by the extended hard drive error-recovery processes common to desktop
drives.
™
Rotary Acceleration Feed Forward (RAFF
) — optimizes operation and performance
when the drives are used in vibration-prone, multidrive systems such as rack-mounted servers
or network storage.
FlexPower
™
— connector technology that accepts power from either industry-standard or
new SATA power supplies.
5-year warranty
Applications
Servers, network attached storage, scientific computing, video surveillance, enterprise backup,
document and image management, digital video.
The WD Promise
WD understands the importance of the information you save to your hard
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drive and we are committed to protecting that data with exceptionally reliable
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products, advanced data protection technology, and superior customer support.
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No one does more to safeguard your data than WD.
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WD Raptor
Enterprise Hard Drives
Drive Specifications
Formatted capacity
User sectors per drive 72,303,840 145,226,112 293,046,768
WD model number WD360ADFD WD740ADFD WD1500ADFD
SATA latching connector Yes
Bytes per sector (STD) 512
Form factor 3.5-inch
Interface SATA 1.5 Gb/s
RoHS compliant
1
2
Enterprise Hard Drives
36 GB 74 GB 150 GB
37,019 MB 74,356 MB 150,039 MB
Yes
Performance Specifications
Average latency 2.99 ms
Buffer 16 MB
Cache
Read Adaptive
Write Yes
Data transfer rate (buffer to host) 1.5 Gb/s (maximum)
Drive ready time 7.0 sec (average), 10.0 sec (maximum)
Error rate (non-recoverable) <1 in 1015 bits read
LBA support Yes
MTBF 1,200,000 hours
Rotational speed 10,000 RPM
Seek time
Read 4.6 ms (average)
Write 5.2 ms (average)
Track-to-track seek
Read 0.3 ms (average), 0.6 (maximum)
Write 0.4 ms (average), 0.75 (maximum)
Start/stop cycles 20,000 minimum
Limited warranty
1
1 gigabyte (GB)= 1 billion bytes. One terabyte (TB) = one trillion bytes. Total accessible capacity
varies depending on operating environment.
2
WD complies with the Reduction of Hazardous Substances (RoHS) Directive 2002/95/EC of the
European Parliament, which is effective in the EU beginning July 1, 2006. RoHS aims to protect
human health and the environment by restricting the use of certain hazardous substances in new
equipment, and consists of restrictions on lead, mercury, cadmium, and other substances.
3
Maximum burst rate running the specified SATA transfer mode.
4
Five-year limited warranty unless otherwise required by law. For extended warranty information,
visit our Web site at support.wdc.com.
4
5-year
3
For service and literature:
support.wdc.com
www.westerndigital.com
800.ASK.4WDC
949.672.7199 Spanish
+800.6008.6008 Asia Pacific
+31.20.4467651 EMEA
Western Digital and WD Raptor are
registered trademarks; and WD, the WD
logo, FIT Lab, FlexPower, and RAFF are
trademarks of Western Digital
Technologies, Inc. Other marks may be
mentioned herein that belong to other
companies. Product specifications subject
to change without notice.
© 2006 Western Digital Technologies, Inc.
All rights reserved.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630
U.S.A.
2879-001165-A02 Aug 2007
North America
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