Barracuda ST3250310NS Ds Es
User Manual: Barracuda ST3250310NS
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1 TB, 750 GB, 500 GB and 250 GB • 7200 RPM •
SATA 3Gb/s, SATA 1.5Gb/s and SAS 3Gb/s
Key Advantages
• 1-TB drive delivers 33 percent more capacity than the
Barracuda ES drive.
• The industry’s highest-reliability 7200-RPM drive,
designed for 24x7 operation
• Best-in-class rotational vibration tolerance ensures
unrivalled performance in high spindle-density applications,
and multi-drive firmware maximizes system availability.
• Seagate® PowerTrim™ technology dynamically optimizes
power consumption by improving GB/watt by 55 percent and by
reducing overall drive power consumption by 20 percent over
prior-generation Barracuda ES drives.
• Choose SAS for the seamless Tier 2 enterprise experience, with
improved data integrity and a 135 percent average performance
boost over SATA. SAS also reduces integration complexity and
optimizes system performance for rich media, reference data
storage and enterprise backup applications.
Best-Fit Applications
• Storage-hungry business applications
• Network attached storage (NAS)
• Maximum-capacity servers
• Rich media content storage—audio, video, image
• Reference and compliance data storage
• Enterprise backup and restore—D2D, virtual tape
• Collaboration—email, messaging
• Infrastructure—Web, print, file
Barracuda® ES.2
High-capacity, business-critical
Tier 2 enterprise drives
Data Sheet
Specifications 1 TB1750 GB1500 GB1250 GB1
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) 5555
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/sec2)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)
