Seagate CHEETAH 15K.6 User Manual
Data Sheet
Cheetah® 15K.6
Highest capacity and reliability in mission-critical storage
450, 300 and 146 GB • 15K RPM • 3-Gb/s Serial Attached SCSI (SAS) and 4-Gb/s FC
Key Advantages
•Second-generation perpendicular recording delivers up to 450-GB capacity.
•Unprecedented performance with a 30 percent increase in sustained data rate of up to 171 MB/s
•Industry’s highest 3.5-inch drive reliability at 1.6-million-hours MTBF.
•Seagate proprietary PowerTrim™ technology provides a 62 percent improvement in GBs/watt at idle.
•Advanced read/write technology delivers nonrecoverable error rate of 1x10E16
•Available in FC or SAS interfaces
Best-Fit Applications
All mainstream enterprise applications, such as:
•Business processing
•Transaction processing
•Decision support
•Storage area networks
•Networked attached storage
•Internet and e-commerce
Cheetah® 15K.6
Highest capacity and reliability in mission-critical storage
Lowest Cost of Ownership
•Sixth-generation Seagate® Cheetah 15K drive is the fastest, highest capacity and most reliable ever.
•Cheetah 15K.5 drive performance and reliability enable lower TCO for enterprise applications.
•Lower watts/GB ratio helps achieve reduced power and cooling costs while optimizing capacity requirements.
•Higher performance with fewer drives—reducing support infrastructure, physical space requirements and storage management costs
•The highest reliability of any 3.5-inch drive, with increased system reliability due to the need for fewer drives
MTBF Improvement
•Seagate continues to focus on reliability and data protection. MTBF is increased to 1.6 million hours.
•Seagate-exclusive enhanced Error Correction Code better maintains performance throughout the life of the drive and reduces the probability of lost data.
•The second generation of Seagate-exclusive Background Media Scan proactively scans the media for potential defects during drive idle time. It enables incipient errors to be corrected before data is lost.
•Our new Quick and Robust Download feature loads new firmware in less than 2 seconds and built-in protection ensures no corruption in the event of a power failure during firmware switch.
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.
Specifications |
450 GB1 |
300 GB1 |
146 GB1 |
Model Number |
ST3450856SS/FC |
ST3300656SS/FC |
ST3146356SS/FC |
Capacity |
|
|
|
Formatted 512 Kbytes/Sector (GB) |
450 |
300 |
146.3 |
External Transfer Rate (MB/s) |
|
|
|
Fibre Channel |
400 |
400 |
400 |
3-Gb/s Serial Attached SCSI |
300 |
300 |
300 |
Performance |
|
|
|
Spindle Speed (RPM) |
15K |
15K |
15K |
Average Latency (ms) |
2.0 |
2.0 |
2.0 |
Seek Time |
|
|
|
Average Read/Write (ms) |
3.4/3.9 |
3.4/3.9 |
3.4/3.9 |
Track-to-Track Read/Write (ms) |
0.2/0.4 |
0.2/0.4 |
0.2/0.4 |
Transfer Rate |
|
|
|
Internal (Mb/s) |
1051 to 2225 |
1051 to 2225 |
1051 to 2225 |
Sustained (MB/s, 1000 x 1000) |
171 to 110 |
171 to 110 |
171 to 110 |
Cache, Multisegmented (MB/s) |
16 |
16 |
16 |
Configuration/Organization |
|
|
|
Discs |
4 |
3 |
2 |
Heads |
8 |
6 |
3 |
Nonrecoverable Read Errors per Bits Read |
1 sector per 10E16 |
1 sector per 10E16 |
1 sector per 10E16 |
Reliability Rating at Full 24x7 Operation |
|
|
|
(AFR) |
0.55% |
0.55% |
0.55% |
Power Management |
|
|
|
Typical (W) |
|
|
|
Fibre Channel |
17.0 |
16.1 |
15.0 |
SAS |
17.3 |
15.8 |
14.4 |
Power Idle (W) |
|
|
|
Fibre Channel |
12.0 |
11.2 |
9.7 |
SAS |
12.4 |
11.1 |
9.6 |
Environmental |
|
|
|
Temperature, Operating (°C) |
5 to 55 |
5 to 55 |
5 to 55 |
Temperature, Nonoperating (°C) |
–40 to 70 |
–40 to 70 |
–40 to 70 |
Shock, Operating: 2 ms (Gs) |
60 |
60 |
60 |
Shock, Nonoperating: 2 ms (Gs) |
250 |
250 |
250 |
Acoustics Idle (bels—sound power) |
3.6 |
3.6 |
3.6 |
Vibration, Operating: <400 Hz (Gs) |
1.0 |
1.0 |
1.0 |
Vibration, Nonoperating: <400 Hz (Gs) |
2.0 |
2.0 |
2.0 |
Physical |
|
|
|
Height (in/mm) |
1.0/25.4 |
1.0/25.4 |
1.0/25.4 |
Width (in/mm) |
4.0/101.6 |
4.0/101.6 |
4.0/101.6 |
Depth (in/mm) |
5.75/146.05 |
5.75/146.05 |
5.75/146.05 |
Weight (lb/kg) |
1.56/0.709 |
1.53/0.694 |
1.49/0.674 |
Warranty |
|
|
|
Limited Warranty (years) |
5 |
5 |
5 |
1One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to hard drive capacity.
www.seagate.com 1-800-SEAGATE (1-800-732-4283)
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. Cheetah 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. DS1645.2-0806US, June 2008
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