Specifications
1 TB
1
750 GB
1
500 GB
1
250 GB
1
Model Number
ST31000340NS
ST31000640SS
ST3750330NS
ST3750630SS
ST3500320NS
ST3500620SS
ST3250310NS
Interface
SATA 3Gb/s, 1.5Gb/s
SAS 3Gb/s
SATA 3Gb/s, 1.5Gb/s
SAS 3Gb/s
SATA 3Gb/s, 1.5Gb/s
SAS 3Gb/s
SATA 3Gb/s, 1.5Gb/s
External Transfer Rate (Gb/s)
3.0
3.0
3.0
3.0
Performance
Transfer Rate
Maximum Internal (Mb/s)
Maximum Sustained, SATA (MB/s)
Maximum Sustained, SAS (MB/s)
1287
105
116
1287
105
116
1287
105
116
1287
105
116
Cache, Multisegmented (MB)
SATA
SAS
32
16
32
16
32
16
32
—
Average Latency (msec)
4.16
4.16
4.16
4.16
Spindle Speed (RPM)
7200
7200
7200
7200
Seek Time
Average Read/Write (msec)
Track-to-Track Read/Write (msec)
8.5/9.5
0.8/1.0
8.5/9.5
0.8/1.0
8.5/9.5
0.8/1.0
8.5/9.5
0.8/1.0
Configuration/Organization
Bytes per Sector
SATA
SAS
512
512, 520, 524, 528
512
512, 520, 524, 528
512
512, 520, 524, 528
512
—
Reliability/Data Integrity
Mean Time Between Failures (MTBF, hours)
1.2 million
1.2 million
1.2 million
1.2 million
Reliability Rating at Full 24x7 Operation (AFR)
0.73%
0.73%
0.73%
0.73%
Nonrecoverable Read Errors per Bits Read
1 sector per 10E15
1 sector per 10E15
1 sector per 10E15
1 sector per 10E15
Error Control/Correction (ECC)
10 bit
10 bit
10 bit
10 bit
Interface Ports
SATA
SAS
Single
Dual
Single
Dual
Single
Dual
Single
—
Limited Warranty (years)
5
5
5
5
Power Management
Typical (W)
SATA
SAS
11.6
12.5
11.6
12.5
10.6
12.5
10.6
—
Idle Average (W)
SATA
SAS
8.0
9.0
8.0
9.0
8.0
9.0
8.0
—
Environmental
Temperature, Operating (°C)
5 to 55
5 to 55
5 to 55
5 to 55
Temperature, Nonoperating (°C)
–40 to 70
–40 to 70
–40 to 70
–40 to 70
Shock, Operating: 2 ms (Gs)
63
63
63
63
Shock, Nonoperating: 2 ms (Gs)
300
300
300
300
Acoustics Idle (bels—sound power)
2.7
2.7
2.5
2.5
Rotational Vibration @ 1500 Hz max (Rad/sec
2
)
12.5
12.5
12.5
12.5
Physical
Height (in/mm)
1.02/26.11
1.02/26.11
1.02/26.11
1.02/26.11
Width (in/mm)
4/101.6
4/101.6
4/101.6
4/101.6
Depth (in/mm)
5.78/146.99
5.78/146.99
5.78/146.99
5.78/146.99
Weight (lb/kg)
1.493/0.677
1.396/0.633
1.199/0.543
1.141/0.518
1
One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to hard drive capacity.
Barracuda
®
ES.2
High-capacity, business-critical Tier 2 enterprise drives
AMERICAS
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550
ASIA/PACIFIC
Seagate Technology International Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
EUROPE, MIDDLE EAST AND AFRICA
Seagate Technology SAS 130–136, rue de Silly, 92773, Boulogne-Billancourt Cedex, France 33 1-4186 10 00
Copyright © 2008 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, DiscWizard and PowerTrim are either trademarks or registered trademarks 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. Publication Number: DS1627.5-0805US, May 2008
Seagate Makes the Best Even Better
With a 5-Year Limited Warranty
•
1-TB Seagate Barracuda ES.2 drive
provides 33 percent more capacity than
its predecessor.
•
With a choice of either SATA or SAS
interfaces, the Barracuda ES.2 drive
utilizes perpendicular recording technology
to deliver the industry’s highest-capacity
4-platter drive. SAS delivers up to a 38
percent IOPS/watt improvement over
SATA.
•
The best 7200-RPM reliability for
24x7 business-critical applications from
a trusted source, backed by a 5-year
limited warranty
•
Multi-drive firmware features and
best-in-class rotational vibration (RV)
tolerance maximizes system availability
and performance in multi-drive systems.
Seagate proprietary Workload Management
technology helps systems keep drives cool.
Seagate Global Customer Support
•
Get presales and technical support
at support.seagate.com.
•
Visit our knowledge base for answers
to common support questions.
•
Find documentation for current and
legacy drives.
•
Utilize our online troubleshooting and
diagnostic tools.
•
Download DiscWizard
™
to help migrate
data from an older drive.
•
Seagate Design Service Centers (DSC)
help companies transform innovative
ideas into viable products.
www.seagate.com
1-800-SEAGATE (1-800-732-4283)
