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DeskstarTM 7K1000
3.5-INCH HARD DISK DRIVES
Industry's first terabyte hard disk drive for consumer
and commercial computing applications
Highlights An industry first, the Hitachi Deskstar 7K1000 hard disk drive delivers up to one terabyte of
> Storage capacities up to 1TB storage capacity for demanding consumer and commercial computing products. It leverages
> Perpendicular magnetic the industry's most reliable perpendicular magnetic recording (PMR) techniques and the latest
recording technology advancements in silent acoustics, shock protection, and head technology to maximize capac-
> SATA 3.0Gb/s interface ity, performance and field reliability. Best-in-class power management and thermal emissions
> Ramp load design increases help manufacturers meet energy compliance targets and extend drive life.
shock protection and power savings
Proven PMR technology
> Thermal monitoring and fly height control
Field-proven in 2.5-in. drives, Hitachi's PMR implementation continues to demonstrate
enhance reliability
reliability equal to or exceeding conventional longitudinal technology. The Deskstar 7K1000's
> Three low-power idle modes
second-generation PMR head and media technology improves noise characteristics and
boost power efficiency
thermal stability.
> Silent seek acoustics achieve
ultra-quiet operation Reduced power idle modes
> Host/drive authentication Unique to Hitachi drives, the Deskstar 7K1000 features three advanced low-power idle
for hardware security 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
Applications
system operation.
> Internal and external storage
for consumer computers Outstanding shock resistance and power efficiency
> Networked storage servers Through a patented ramp load/unload design disk heads (in non-operating modes) are
> Extreme gaming machines unloaded to a ramp outside the disk where they rest in a low-power `unload idle' state until
> Video editing arrays 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
1TB, 750GB | 7200 RPM
and increases reliability.
Serial ATA 3.0Gb/s
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.
DATA SHEET www.hitachiGST.com
DeskstarTM 7K1000
Specifications Hitachi quality and service
Model(s) HDS721075KLA330 All Hitachi hard drives are designed to the
HDS721010KLA330 highest quality standards with field-proven
Interface Serial ATA 3.0Gb/s components. They are backed by Hitachi's
Capacity 1
750GB 1TB worldwide technical support and integration
Sector size 512 bytes services, enabling global customers to bring
Disks/heads 4/8 5/10 their products to market quickly.
Performance
Information and Technical Support
Data buffer2 32MB
www.hitachigst.com (Main Web site)
Rotational speed 7200 RPM
www.hitachigst.com/partners (Reseller Web site)
Media transfer rate (max) 1070Mb/s
Interface transfer rate (max) 300Mb/s North America
Latency 4.17ms (average, 7200 RPM) [email protected]
Seek time3 8.2ms read (typical), 9.2ms write (typical) Toll free: 1 888 426-5214
Silent-seek time3 14ms read (typical), 15ms write (typical) Direct: 1 507 322-2370
Reliability
Asia Pacific
Error rate (non-recoverable) 1 per 1.0 E15 bits transferred
[email protected] / 65 6840 9595
Load/unload cycles (at 40