Hitachi 3.5-INCH HDS725050KLA360 User manual

Seemingly Infinite Enterprise Storage
Highlights
> Up to 500 GB of capacity with SATA 3.0Gb/s
> 1,000,000 hour MTBF reliability4
> Native Command Queuing (NCQ) for
superior performance
> Rotational Vibration Safeguard for high
density storage configurations
> Iridium Manganese Chromium head
sensor technology for high reliability
> Low-power mode
Feature / Function Benefits
Capacity 500GB &400GB models High capacity storage solutions
Cache 16 MB Buffer Improved transfer performance
Performance High interface transfer rates Faster system boot-up
SATA 3.0 Gb/s interface 300MB/s burst data rate for faster data access
Rotational Vibration Safeguard Optimum performance in multi-drive systems
Reliability ECC and CRC protection Dataintegrityenhancedthroughoutcircuits
Low-powermode Reducessystemheat/coolingrequirements
Load / unload ramp Protects user data when power is removed
Internal termal sensor Improves data integrity at high temperatures
500GB & 400GB |7200 RPM |Serial ATA 3.0Gb/s
Hitachi Deskstar® E7K500
3.5-INCH HARD DISK DRIVES
Features and Benefits
www.hitachigst.com
*Actual storage may vary depending on the compression rate applied.
Applications
> Nearline storage
> Disk-to-disk back-up
> Digital video surveillance
> RAID arrays
> Tiered storage
Rotational Vibration Safeguard
(RVS) Feature
The Deskstar E7K500 hard drive is optimized
for use in nearline/low duty cycle enterprise
environments with capabilities such as
Rotational Vibration Safeguard (RVS), which
maintains the hard drive’s performance in high
rotational vibration environments where
multiple drives reside in a single enclosure.
Advanced Serial ATA 3.0Gb/s Support
>3.0 Gb/s (300 MB/s) interface data rate
> NCQ (native command queuing)
>Staggered (delayed) spin-up
>Hot-swap capability
The E7K500 provides all of these enhancements
to enable faster data access, better power
management to the system and higher
performance.
Hitachi 5-year Warranty Provides Superior Quality and Service
The Hitachi Deskstar E7K500 extends the company’s long-standing tradition of performance
and reliability leadership. Hitachi’s enterprise features for storage applications enable high
capacity, fast transfers, low power and high reliability. These features combine to make the
Deskstar E7K500 ideal for nearline/low duty cycle, disk-to-disk back-up and other enterprise
storage solutions.
The Deskstar E7K500 carries the industry’s most comprehensive 5-year warranty with
product replacement values throughout the life of the warranty that exceed those
available from other hard drive suppliers.

Hitachi Deskstar®E7K500
Product Deskstar E7K500
Model numbers HDS725050KLA360
HDS725050KLA361
Specifications
Configuration
Interface SATA 3.0Gb/s
Capacity (GB)1500; 400
Disks / heads 5 / 10
Performance
Data buffer2(MB) 16
Rotational speed (RPM) 7,200
Media transfer rate (max. Mbits/sec) 817
Interface transfer rate (max. MB/sec) 300
Sustained data rate (MB/sec) 64.8 - 31 (zone 0 - 29)
Seek time, average (read, typical (ms))38.5
Reliability
Error rate (non-recoverable) 1 in 10E14
Start/stops (at 40° C) 50,000
Availability424x7
MTBF41,000,000 hours
Acoustic
Idle (Bels) 3.1
Power
Requirement +5 VDC (+/- 5%)
+12 VDC (+10 %/-8%)
Dissipation
Startup current (max. A) 2.0 (+12V) &1.2 (+5V)
Idle (W) 9.6
Physical Size
Height (mm) 25.4
Width (mm) 101.6
Depth (mm) 146
Weight (max. g) 700
Environmental Characteristics
Operating
Ambient temperature 5° to 55° C
Relative humidity (non-condensing) 8% to 90%
Shock (half sine wave, 2ms) (G) 55
Vibration (random (RMS)) (G) 0.67 for horizontal
0.56 for vertical
Non-operating
Ambient temperature -40° to 65° C
Relative humidity (non-condensing) 5% to 95%
Shock (half sine wave, 2ms) (G) 225
Vibration (random (RMS)) (G) 1.04 (XYZ)
RoHS compliant5Yes
1GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2Buffer capacity includes 271 KB used for drive firmware.
3Includes 0.3ms command overhead.
4Low duty cycle, non mission-critical applications in PC, nearline and consumer electronics customer environments
are different from application to application. An MTBF measurement is based on a sample population and is estimated
by statistical measurements and acceleration algorithms under nearline / low duty cycle workload. MTBF ratings are
not intended to predict an individual drive’s reliability. MTBF is not a warranty measurement.
5 RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in
electrical and electronic equipment.
© 2006 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
3403 Yerba Buena Road
San Jose, CA 95135
Produced in the United States 8/06, rev. 10/06
All rights reserved.
Deskstar® is a trademark of Hitachi Global Storage Technologies.
References in this publication to Hitachi Global Storage
Technologies products, programs or services, do not imply that
Hitachi Global Storage Technologies intends to make these
available in all countries in which it operates.
Product specifications provided are sample specifications and
do not constitute a warranty. Information is true as of the date of
publication and is subject to change. Actual specifications for
unique part numbers may vary. Please visit the Support section
of our website, www.hitachigst.com/support , for additional
information on product specifications. Photographs may show
design models.
For more information:
Internet:
>www.hitachigst.com (Main Web site)
>www.hitachigst.com/vpp (Reseller Web site)
Technical Support E-mail:
>[email protected] (N. America)
>[email protected] (Asia Pacific)
>[email protected] (EMEA and UK)
Technical Support Phone Numbers:
>1 888 426-5214 (N. America)
>65 6840 9595 (Asia Pacific)
>44 20 7133 0032 (EMEA and UK)
>49 6929 993601 (Germany)
How to Read the Deskstar Model Number
Example:
HDS725050KLA360 = 500GB/16MB
H= Hitachi
D= Deskstar
S= Standard (vs T for Two-disk for example)
72= 7200 RPM
50= full capacity = 500GB
50= model capacity = 500GB (unless 1 in last position)
K= generation code
L= height
A3= SATA 3.0Gb/s
6= 16MB buffer
0= 500GB model (1=400GB mode
Specific application environments such as temperature and duty cycle will affect the overall reliability rates. For specific
application environment reliability rates, please consult Hitachi technical support.