Hitachi DESKSTAR 7K400 Reference Guide
Hitachi Deskstar
®
7K400
H A R D D I S K D R I V E S
400GB | 7200 RPM | Ultra ATA/100 and Serial ATA 1.5Gb/s
Seemingly Infinite Storage
Highlights
> 400 GB of capacity with either Serial or
Parallel ATA interface
> Rotational Vibration Safeguard
> ATA-7 Streaming Feature Set
> Robust mechanical enhancements
> Latching SATA connector
Capacity Leadership
The Deskstar 7K400 answers the market demand
for higher density storage. This drive provides
60% more capacity in the same space of a 250GB
drive for those desiring the highest capacity.
A 1U enclosure can now provide 1.6 terabytes –
600 GB more than available with 250 GB drives!
Why Serial ATA?
Serial ATA technology provides significant benefits to end-users and storage solution vendors
by supplying a platform that overcomes the
limitations of parallel ATA hard drives. System
integration is simplified with:
> Thinner interface cable
> Improved point-to-point interface cabling
> Hot-plug connection capability
> Reduced pin count
Feature s and Benefits
Feature / Function Benefits
Capacity 400GB 45 hours of HDTV broadcast, or
40,000 typical library books, or
100,000 high quality, 4 minute MP3 recordings, or
400,000 x-rays
Performance Rotational Vibration Safeguard Maintains drive performance in high rotational
vibration environments and multi-drive systems
Reliability Latching SATA connector Prevents disconnects due to excessive shock or vibration
Load / unload ramp Protects user data when power is removed
Fixed shaft Fluid Dynamic Bearing Low acoustics
(FDB) spindle motor
Reliable operation in AV and nearline applications
ATA - 7 , Extending HDD Functionality
The Deskstar 7K400 incorporates the latest ATA-7 feature set. These include:
> AV command set – enables the added controls of the Streaming Feature Set
> Enhanced S.M.A.R.T. features – including Selective Self Test
The Deskstar 7K400 with ATA Streaming Feature Set provides important features for AV
storage applications. These key features enable system developers to:
> Read drive attributes and configure the drive buffer for optimum performance
> Stream error logging to reduce time delays for system error processing
> Handle stream errors to enable full error recovery
Applications
> Digital video recorder
> Nearline Storage for:
– Disk-to-disk backup
– Fixed content
– Archive
– Data disaster prevention / recovery
> Performance PCs and workstation
> Gaming PCs
> Home media server
> Video editing and streaming
Hitachi Quality a n d S e r v i c e
Hitachi drives are backed by an array of technical support and services, which may include
customer and integration assistance.
Hitachi is dedicated to provide a breadth of hard disk drive solutions to satisfy all of today’s
demanding computing needs.
www.HitachiGST.com
H i t a c h i D e s k s t a r® 7 K 4 0 0
Pro d uct Des ksta r 7 K40 0 Des ksta r 7 K40 0
Model names HDS724040KLAT80 HDS724040KLSA80
Spe c i fic a t ion s
Configuration Parallel-ATA Serial-ATA
Interface Ultra ATA/100 Serial ATA 1.5Gb/s
Capacity (GB)1 400
Disks / heads 5/10
Performance
Data buffer2 (MB) 8
Rotational speed (RPM) 7,200
Media transfer rate (max. Mbits/sec) 757
Interface transfer rate (max. MB/sec) 100 150
Sustained data rate (MB/sec) 61.4 - 29.8 (zone 0 - 29)
Seek time, average (read, typical (ms))3 8.5
Reliability
Error rate (non-recoverable) 1 in 10E14
Start/stops (at 40° C) 50,000
Acoustic
Idle (Bels) 3.1
Power
Requirement +5 VDC (+/- 5%)
+12 VDC (+10 %/-8%)
Dissipation
Startup current (max. A) 2.0 (+12V) & 1.1 (+5V) 2.0 (+12V) & 1.2 (+5V)
Idle (W) 9.0 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)
1
GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.
2
Buffer capacity includes 271 KB used for drive firmware.
3
Includes command overhead.
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.
Fo r m o re i n form a tion :
Internet:
> www.HitachiGST.com (Main Web site)
> www.HitachiGST.com/vpp (Reseller Web site)
Technical Support E-mail:
> support_usa@hgst.com (N. America)
> support_ap@hgst.com (Asia Pacific)
> support_uk@hgst.com (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 t o R ead t h e Des kst a r M ode l N umb e r
Example:
HDS722516VLAT20 = 160GB/2MB
H = Hitachi
D = Deskstar
S = Standard (vs A for Auto for example)
72 = 7200 RPM
25 = full capacity = 250GB
16 = model capacity = 160GB
V = generation code
L = height
AT = ATA (or SA = SATA)
2 = 2MB buffer (or 8 = 8MB)
0 = Reserved
© 2005 Hitachi Global Storage Technologies
Hitachi Global Storage Technologies
5600 Cottle Road
San Jose, CA 95193
Produced in the United States 3/05
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 information is provided for information purposes only,
and does not constitute a warranty. Information is true as of
the date of publication and is subject to change. Actual results
may vary. This publication is for general guidance only. Photographs may show design models.
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