Seagate ST31000520AS - Barracuda LP 1 TB Hard Drive User manual

2TB, 1.5TB, 1TB and 500GB •SATA 3Gb/s
Key Advantages
•Power consumption has been reduced by up to 44 percent over
standard desktop drives to provide power savings over the life of the
drive.
•Best-in-class acoustic performance means whisper-quiet operation.
•Cool, low-power drives can reduce more than electricity costs, reducing
costs of fans and power supply units.
•Sustainable technology for a green world:
– 70 percent or more of the materials used to build the drive can be
recycled.
– Complies with the RoHS directive and several non-regulatory
restrictions
– Designed and built to the highest international environmental
standards
– Brought to you by Seagate, a company that has earned recognition for
implementation of green practices worldwide
Best-Fit Applications
•Personal Attached Storage—USB/FireWire/eSATA
•Small office and home data storage appliances
•Low-power PCs
Barracuda®LP
Low power that won’t slow you down
Data Sheet

Barracuda®LP
Low power that won’t slow you down
Specifications 2TB11.5TB11TB1500GB1
Model Number ST32000542AS ST31500541AS ST31000520AS ST3500412AS
Interface Options SATA SATA SATA SATA
Performance
Transfer Rate, Max Ext (MB/s) 300 300 300 300
Sustained Data Rate OD (MB/s) 95 95 95 95
Cache (MB) 32 32 32 16
Average Latency (ms) 5.5 5.5 5.5 5.5
Spindle Speed (RPM) 5900 5900 5900 5900
Configuration/Organization
Bytes per Sector 512 512 512 512
Reliability/Data Integrity
Contact Start-Stops 50,000 50,000 50,000 50,000
Nonrecoverable Read Errors per Bits Read, Max 1 per 10E14 1 per 10E14 1 per 10E14 1 per 10E14
Annualized Failure Rate (AFR) 0.32% 0.32% 0.32% 0.32%
Power Management
Startup Current +12V Peak (A±10%) 2.0 2.0 2.0 2.0
Operating, Average (W) 6.8 6.8 5.7 4.0
Idle, Average (W) 5.5 5.5 3.0 3.0
Environmental
Temperature
Operating (°C)
Nonoperating (°C)
0 to 60
–40 to 70
0 to 60
–40 to 70
0 to 60
–40 to 70
0 to 60
–40 to 70
Shock,
Operating, 2ms (G)
Nonoperating, 1ms (G)
70
300
70
300
70
350
70
350
Acoustic (bels-sound power)
Idle
Seek
2.5
2.6
2.5
2.6
1.9
2.0
1.9
2.0
Physical
Height (in/mm) 1.028/26.1 1.028/26.1 1.028/26.1 0.795/20.20
Width (in/mm) 4.010/101.85 4.010/101.85 4.010/101.85 4.010/101.85
Depth (in/mm) 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99
Weight (lb/kg) 1.44/0.66 1.44/0.66 1.4/0.64 0.838/380
1One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to hard drive capacity.
AMERICAS Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550
ASIA/PACIFIC Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
EUROPE, MIDDLE EAST AND AFRICA Seagate Technology SAS 16–18 rue de Dôme, 92100 Boulogne-Billancourt, France, 33 1-4186 10 00
Copyright © 2009 Seagate Technology LLC. All rights reserved. Printed in USA. Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or
other countries. Barracuda is either a trademark or registered trademark of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered
trademarks are the property of their respective owners. When referring to hard drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer’s operating
system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage.
Seagate reserves the right to change, without notice, product offerings or specifications. DS1680.3-0911US, November 2009
The company that has provided the world with product innovation over
12 generations of desktop drives has turned its focus to the increasing
customer needs for low-power drives. Meet the Seagate®Barracuda LP
family, the low-power drive with rock-solid performance and whisper-
quiet, super-cool operation.
Low Power
•Low-power drives provide immediate cost savings during operation.
•Reduced power consumption and heat generation enable systems to
run cooler and can increase their useful life.
Performance
•Low power doesn’t mean slow power with the Barracuda LP drive.
•The drives enable a faster, more energy-efficient system.
Capacity
•A range of capacities up to 2TB for greatest flexibility in building drives
and systems for ever-expanding, storage-hungry applications
Acoustics
•Whisper-quiet acoustics for a quiet PC environment
Reliability
•Low-power, super-cool drives increase reliability
•Ships with the world’s most reliable and proven perpendicular
magnetic recording technology
•Thirteenth generation of the most widely used Barracuda desktop line
Sustainable Technology for a Green World
•Meets rigorous green design and manufacturing standards that are
built into every Seagate drive
•Low power consumption enables eco-friendly systems.
•Complies with RoHS directive and all major non-regulatory restrictions
www.seagate.com
1-800-SEAGATE (1-800-732-4283)