Hitachi Deskstar HDS721075KLA330 User manual

www.hitachiGST.com
DATA SHEET
An industry first, the Hitachi Deskstar 7K1000 hard disk drive delivers up to one terabyte of
storage capacity for demanding consumer and commercial computing products. It leverages
the industry’s most reliable perpendicular magnetic recording (PMR) techniques and the latest
advancements in silent acoustics, shock protection, and head technology to maximize capac-
ity, performance and field reliability. Best-in-class power management and thermal emissions
help manufacturers meet energy compliance targets and extend drive life.
Proven PMR technology
Field-proven in 2.5-in. drives, Hitachi’s PMR implementation continues to demonstrate
reliability equal to or exceeding conventional longitudinal technology. The Deskstar 7K1000’s
second-generation PMR head and media technology improves noise characteristics and
thermal stability.
Reduced power idle modes
Unique to Hitachi drives, the Deskstar 7K1000 features three advanced low-power idle
modes—active, unload and low-power. Together, they reduce power consumption at the drive
level up to 20%, optimize non-operational latency and lower drive temperature for cooler
system operation.
Outstanding shock resistance and power efficiency
Through a patented ramp load/unload design disk heads (in non-operating modes) are
unloaded to a ramp outside the disk where they rest in a low-power ‘unload idle’ state until
activated. In low RPM drives, this can reduce power by up to 50%. Ramp load/ unload
provides tangible benefits for the drive and host product. It greatly minimizes the risk of shock
damage by eliminating direct contact between the heads and disks. Reduced wear and heat
improve overall drive reliability. In the event of power loss to the drive, heads are unloaded
using energy extracted from the spinning disks. This patented power-saving feature helps to
reduce overall maintenance costs and extends the drive service life.
Another contributor to Deskstar 7K1000’s exceptional shock performance and power savings
is the use of compact, low-mass femto air-bearing sliders.
Extended field reliability
An integrated thermal sensor monitors operating temperature, enabling the host processor to
intelligently adjust airflow as needed for cooling. Sensor integration reduces component cost
and increases reliability.
Deskstar 7K1000’s thermal fly-height control (TFC) uses an integrated heating element to
precisely maintain a constant fly-height throughout read and write operations. This reduces
raw soft error rate and, in turn, improves overall data integrity, drive performance and reliability.
Deskstar 7K1000’s iridium-manganese-chromium (IrMnCr) read head sensor technology offers
better performance and reliability in harsh conditions.
Hitachi Design Studios
Located around the world, Hitachi Design Studios assist customers with all aspects of integrat-
ing hard drives into consumer electronic devices. Their services focus on drive selection,
evaluation and optimization, integration and design-in consulting, software compatibility
assessment, performance profiling, problem analysis and reliability consulting.
Industry’s first terabyte hard disk drive for consumer
and commercial computing applications
Deskstar™7K1000
3.5-INCH HARD DISK DRIVES
Highlights
Storage capacities up to 1TB
Perpendicular magnetic
recording technology
SATA 3.0Gb/s interface
Ramp load design increases
shock protection and power savings
Thermal monitoring and fly height control
enhance reliability
Three low-power idle modes
boost power efficiency
Silent seek acoustics achieve
ultra-quiet operation
Host/drive authentication
for hardware security
Applications
Internal and external storage
for consumer computers
Networked storage servers
Extreme gaming machines
Video editing arrays
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1TB, 750GB | 7200 RPM
Serial ATA 3.0Gb/s

Specifications
Model(s) HDS721075KLA330
HDS721010KLA330
Interface Serial ATA 3.0Gb/s
Capacity1750GB 1TB
Sector size 512 bytes
Disks/heads 4/8 5/10
Performance
Data buffer232MB
Rotational speed 7200 RPM
Media transfer rate (max) 1070Mb/s
Interface transfer rate (max) 300Mb/s
Latency 4.17ms (average, 7200 RPM)
Seek time38.2ms read (typical), 9.2ms write (typical)
Silent-seek time314ms read (typical), 15ms write (typical)
Reliability
Error rate (non-recoverable) 1 per 1.0 E15 bits transferred
Load/unload cycles (at 40°C) 50,000
Availability 4(hrs/day x days/wk) 24x7
Warranty 3 years
Power
Supply +5 VDC (+/- 5%), +12 VDC (+10% / -8%)
Start up current (max) 2.0A (+12V), 1.2A (+5V)
Random read/write (average) 11.5W 12.3W
Silent read/write (average) 9.2W 10.2W
Idle (average) 7.6W 8.4W
Unload idle 5.5W 6.1W
Low RPM idle 3.5W 3.7W
Acoustics (A-weighted sound power)
Idle 2.9bels (typical)
Silent seek, Seek 3.0bels (typical), 3.2bels (typical)
Physical
Dimensions H (26.1mm) x W (101.6mm) x D (147mm)
Weight (max) 700g
Environmental
Temperature 5 to 60 °C operating, -40 to 70 °C non-operating
Relative humidity (non-condensing) 8 to 90% operating, 5 to 95% non-operating
Shock (half sine wave) 70 G/2 ms pulse operating, 300 G/1 ms pulse non-operating
Vibration (random) (RMS) 0.67G horizontal, 0.67G vertical operating, 1.04G XYZ non-operating
RoHS 5compliant yes
1 GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2 Buffer capacity includes 270 or less KB used for drive firmware.
3 Does not include command overhead.
4 Intended for low duty cycle, non-mission critical applications in PC, nearline and consumer electronics environments.
Note that customer environments may vary from application to application.
5 RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in electrical and electronic equipment.
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.
Deskstar™7K1000
Hitachi Global Storage Technologies trademarks are intended and authorized for use only in countries and jurisdictions in which Hitachi
Global Storage Technologies has obtained the rights to use, market and advertise the brand. Contact Hitachi Global Storage Technologies
for additional information. Hitachi Global Storage Technologies shall not be liable to third parties for unauthorized use of this document or
unauthorized use of its trademarks.
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.
© 2007 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
3403 Yerba Buena Road
San Jose, CA 95135 USA
Produced in the United States 11/07. Revised 7/09.
All rights reserved.
Deskstar™is a trademark of Hitachi Global Storage Technologies.
DSDS721007EN-04
Hitachi quality and service
All Hitachi hard drives are designed to the
highest quality standards with field-proven
components. They are backed by Hitachi’s
worldwide technical support and integration
services, enabling global customers to bring
their products to market quickly.
Information and Technical Support
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