Seagate CHEETAH 15K.4 User Manual
Cheetah 15K.4
Mainstream enterprise disc drive storage
146, 73, and 36 Gbytes—15K RPM—Ultra320 SCSI, 2 Gbit/sec FC and Serial Attached SCSI (SAS)
Key Advantages
• 30 percent more IOPS and more than 20 percent faster response times than 3.5-inch 10K drives
• Enables higher performance with fewer drives, reducing supporting infrastructure, maintenance and space needs, while increasing system reliability
• Highest reliability in the industry—designed for “full duty cycle” applications
• Reduces RAID rebuild times while minimizing reliability risks
• Fastest, coolest, quietest and most reliable Cheetah
®
15K ever
Best-Fit Applications
All mainstream enterprise applications, such as:
• E-mail
• Business processing
• Transaction processing
• Decision support
• Storage Area Networks (SAN)
• Networked Attached Storage (NAS)
• Internet and e-commerce
The Best
Price/Performance,
Lowest Cost of
Ownership Disc Drive
© 2004 Seagate Technology LLC.All rights reserved. Printed in USA. Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC. Cheetah and
the Wave logo are registered trademarks or trademarks of Seagate Technology LLC.Other product names are registered trademarks or trademarks of their owners. Seagate
reserves the right to change, without notice, product offerings or specifications. Publication Number: 1566-002,November 2004
AMERICAS Seagate Technology LLC 920 Disc Drive, Scotts Valley,California 95066, United States, 831-438-6550
ASIA/PACIFIC Seagate Technology International Ltd. 151 Lorong Chuan, New Tech Park #06-01, Singapore 556741,65-6488-7498
EUROPE, MIDDLE EAST AND AFRICA Seagate Technology SAS 130-136, rue de Silly, 92773 Boulogne-Billancourt Cedex, France,33 1-41 86 10 00
Lowest Cost of Ownership
• Cheetah 15K performance and reliability enable lower
TCO for a wide variety of enterprise applications.
• Cheetah 15K RPM and fast seek times deliver the
fastest time-to-data, resulting in 30 percent more IOPS
and more than 20 percent faster response times than
3.5-inch 10K drives.
• Cheetah 15K enables higher performance with fewer
drives. Fewer drives reduce support infrastructure,
physical space requirements and storage management
costs.
• Cheetah 15K drives have the highest field-proven
reliability in the industry and further increase system
reliability due to the need for fewer drives.
• This fourth-generation Cheetah 15K is the fastest,
coolest, quietest and most reliable ever.
Highest Reliability
• Seagate-exclusive enhanced Error Correction Code
better maintains performance throughout the life of the
drive and reduces the probability of lost data.
• Background Media Scan, a Seagate exclusive feature,
proactively scans the media for potential defects during
drive idle time without using system bandwidth. It
enables incipient errors to be corrected before data is
lost.
• The Cheetah 15K.4 is designed and manufactured by
the same teams that successfully delivered the past
three award-winning generations of Cheetah 15K.
World-Class Technical Support
• Certified, experienced support staff
• Rated “Above Average to Excellent” by 95 percent of
our customers
• Support lines with the shortest wait times in the industry
• Individually archived case histories for quick reference
• Web-based Q&A forum and autoreply e-mail
• Seagate Design Service Centers (DSC) help companies
transform innovative ideas into viable products.
www.seagate.com
1-800-732-4283 (1-800-SEAGATE)
Cheetah 15K.4
Mainstream enterprise disc drive storage
Model Number
Capacity
Formatted 512 Kbytes/Sector (Gbytes)
Interface
External Transfer Rate (Mbytes/sec)
Interface
External Transfer Rate (Mbytes/sec)
Interface
External Transfer Rate (Mbytes/sec)
Performance
Spindle Speed (RPM)
Average Latency (msec)
Seek Time
Average Read/Write (msec)
Track-to-Track Read/Write (msec)
Transfer Rate
Internal (Mbits/sec)
Internal Formatted (Mbytes/sec)
Sustained (Mbytes/sec)
Cache, Multisegmented (Mbytes)
Configuration/Organization
Discs
Heads
Nonrecoverable Read Errors per Bits Read
MTBF (hours), AFR
Power Management
Typical (watts) SCSI
Fibre Channel
SAS
Power Idle (watts) SCSI
Fibre Channel
SAS
Environmental
Temperature, Operating (°C)
Temperature, Nonoperating (°C)
Shock, Operating: 2 msec (Gs)
Shock, Nonoperating: 2 msec (Gs)
Acoustics Idle (bels—sound power)
Vibration, Operating: <400 Hz (Gs)
Vibration, Nonoperating: <400 Hz (Gs)
Physical
Height (in/mm)
Width (in/mm)
Depth (in/mm)
Weight (lb/kg)
Warranty
Limited Warranty (years)
1
1 Gbyte = 1,000,000,000 bytes. For additional details go to cheetah.seagate.com
146.8 GB
1
Specifications
ST3146854LW/LC/FC/SS
146.8
Ultra320 SCSI
320
2 Gbit/sec FC
200
SAS
300
15K
2.0
3.5/4.0
0.2/0.4
685 to 1142
87 to 143
58 to 96
8
4
8
1 sector per 10
15
1,400,000/0.62%
17.5
19.36
19.48
12.0
13.7
14.37
5 to 55
–40 to 70
60
250
3.6
1.0
3.0
1.0/25.4
4.0/101.6
5.75/146.05
1.5/0.771
5
73.4 GB
1
ST3733454LW/LC/FC/SS
73.4
Ultra320 SCSI
320
2 Gbit/sec FC
200
SAS
300
15K
2.0
3.5/4.0
0.2/0.4
685 to 1142
87 to 143
58 to 96
8
2
4
1 sector per 10
15
1,400,000/0.62%
14.3
17.08
17
9.5
11.4
11.95
5 to 55
–40 to 70
60
250
3.2
1.0
3.0
1.0/25.4
4.0/101.6
5.75/146.05
1.5/0.771
5
36.7 GB
1
ST336754LW/LC/FC/SS
36.7
Ultra320 SCSI
320
2 Gbit/sec FC
200
SAS
300
15K
2.0
3.5/4.0
0.2/0.4
685 to 1142
87 to 143
58 to 96
8
1
2
1 sector per 10
15
1,400,000/0.62%
13.51
15.27
15.2
8.04
9.8
10.4
5 to 55
–40 to 70
60
250
3.0
1.0
3.0
1.0/25.4
4.0/101.6
5.75/146.05
1.5/0.771
5
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