Data Sheet
Barracuda ES
Highest-capacity drives for the enterprise
750, 500, 400, 320 and 250 GB • 7200 RPM •
SATA 3Gb/s
Key Advantages
• 750-GB capacity transforms storage systems, enabling 50 percent
more storage in the same space.
• The Seagate® Barracuda ES drive is the industry’s highest-reliability
7200-RPM drive, designed for 24x7 operation.
• Best-in-class rotational vibration tolerance ensures unrivalled
performance in high-density RAID and JBOD applications.
• Multi-drive firmware maximizes RAID and JBOD system availability.
• Advanced Power Management reduces power consumption and
system heat levels.
Best-Fit Applications
• Storage-hungry business applications
• Network Attached Storage (NAS)
• Storage Area Networks (SAN)
• 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
• Video surveillance
Barracuda ES
Highest-capacity drives for the enterprise
Seagate Is the Trusted Leader in
Enterprise Storage
• 750 GB provides 50 percent more capacity
than competing drives. The SATA line
utilizes perpendicular recording technology
to deliver the highest capacity.
Specifications
750 GB1 500 GB1 400 GB1 320 GB1 250 GB1
Model Number
ST3750640NS
ST3500630NS
ST3400620NS
ST3320620NS
ST3250820NS
ST3320820NS
ST3250620NS
Interface
SATA 3Gb/s
SATA 3Gb/s
SATA 3Gb/s
SATA 3Gb/s
SATA 3Gb/s
External Transfer Rate (Gb/s)
3.0
3.0
3.0
3.0
3.0
Transfer Rate
Maximum Internal (Mb/s)
Maximum Sustained (MB/s)
1030
1030
1030
1030
1030
78
72
72
72
72
Cache, Multisegmented (MB)
16
16
16
8, 16
8, 16
Average Latency (msec)
4.16
4.16
4.16
4.16
4.16
Spindle Speed (RPM)
7200
7200
7200
7200
7200
Seek Time
Average Read/Write (msec)
Track-to-Track Read/Write (msec)
8.5/9.5
8.5/9.5
8.5/9.5
8.5/9.5
8.5/9.5
0.8/1.0
0.8/1.0
0.8/1.0
0.8/1.0
0.8/1.0
512
512
512
512
512
Reliability Rating at Full 24x7 Operation (AFR)
0.73%
0.73%
0.73%
0.73%
0.73%
Nonrecoverable Read Errors per Bits Read
1 sector per 1014
1 sector per 1014
1 sector per 1014
1 sector per 1014
1 sector per 1014
Error Control/Correction (ECC)
10 bit
10 bit
10 bit
10 bit
10 bit
Interface Ports
Single
Single
Single
Single
Single
Limited Warranty (years)
5
5
5
5
5
Typical (watts)
13.0
13.0
13.0
13.0
13.0
Idle Average (watts)
9.3
9.3
9.3
9.3
9.3
5 to 55
Performance
• Industry’s highest 7200-RPM reliability for
24x7 business-critical applications from
a trusted source, backed by the Seagate
5-Year Warranty
• Multi-drive firmware features and
best-in-class rotational vibration (RV)
tolerance maximize system availability
and performance in multi-drive
systems. Seagate proprietary Workload
Management technology helps systems
keep drives cool.
Configuration/Organization
Bytes per Sector
Reliability/Data Integrity
Seagate Service Centers—Worldwide
Support
Power Management
• Presales and technical support at
1-800-SEAGATE
Environmental
Temperature, Operating (°C)
5 to 55
5 to 55
5 to 55
5 to 55
• Free technical support for the life of
the product
Temperature, Nonoperating (°C)
–40 to 70
–40 to 70
–40 to 70
–40 to 70
–40 to 70
Shock, Operating: 2 msec (Gs)
63
63
63
63
63
Shock, Nonoperating: 1 msec (Gs)
225
225
225
225
225
• Expert email support and complete
historical web content available online
Acoustics Idle (bels—sound power)
2.7
2.5
2.5
2.5
2.5
Rotational Vibration (Rad/sec2)
12.5
12.5
12.5
12.5
12.5
Height (in/mm)
1.02/26.11
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
4/101.6
Depth (in/mm)
5.78/146.99
5.78/146.99
5.78/146.99
5.78/146.99
5.78/146.99
Weight (lb/kg)
1.58/0.720
1.58/0.720
1.58/0.720
1.58/0.720
1.58/0.720
Physical
• Certified, experienced support staff
• Rated “Above Average to Excellent” by
95 percent of our customers
• Seagate Design Service Centers (DSC)
help companies transform innovative ideas
into viable products.
1
One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity.
www.seagate.com
1-800-SEAGATE
(1-800-732-4283)
AMERICAS
ASIA/PACIFIC
EUROPE, MIDDLE EAST AND AFRICA
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550
Seagate Technology International Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
Seagate Technology SAS 130–136, rue de Silly, 92773, Boulogne-Billancourt Cedex, France 33 1-4186 10 00
Copyright © 2006 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. One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting. Seagate reserves the right to change, without notice, product offerings or specifications. DS1597-3, October 2006
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