Seagate Cheetah 15K.5 SAS ST373455SS User Manual

Cheetah 15k.5 sas

Product Manual

Cheetah 15K.5 SAS

100384784

Rev. E

August 2007

ST3300655SS

ST3146855SS

ST373455SS

This manual is related to the following products:

Cheetah 15K.5 SAS ST3146855SS Cheetah 15K.5 SAS ST3300655SS

Table of contents

Document Outline

Figure 2. Typical ST3300655SS drive +12V current profile 26
Figure 3. Typical ST3300655SS drive +5V current profile 26
Figure 4. Typical ST3146855SS drive +12V current profile 27
Figure 5. Typical ST3146855SS drive +5V current profile 27
Figure 6. Typical ST373455SS drive +12V current profile 28
Figure 7. Typical ST373455SS drive +5V current profile 28
Figure 8. ST3300655SS (3 Gbit) DC current and power vs. input/output operations per second 29
Figure 9. ST3146855SS (3 Gbit) DC current and power vs. input/output operations per second 30
Figure 10. ST373455SS (3 Gbit) DC current and power vs. input/output operations per second 31
Figure 11. Location of the HDA temperature check point 32
Figure 12. Recommended mounting 34
Figure 13. Physical dimensions 36
Figure 14. Physical interface 41
Figure 15. Air flow 42
Figure 16. Physical interface 57
Figure 17. SAS connector dimensions 58
Figure 18. SAS connector dimensions 59
Figure 19. SAS transmitters and receivers 61
Figure 20. Receive eye mask 63
Figure 21. Receive tolerance eye mask 63
Figure 22. Sinusoidal jitter mask 64
Figure 23. Compliance interconnect test load 69
Figure 24. Zero-length test load 70
Figure 25. ISI loss example at 3.0 Gbps 70
Figure 26. ISI loss example at 1.5 Gbps 70
1.0 Scope
2.0 Standards, compliance and reference documents
- 2.1 Standards
  - 2.1.1 Electromagnetic compatibility
    - 2.1.1.1 Electromagnetic susceptibility
- 2.2 Compliance
  - 2.2.1 Electromagnetic compliance
- 2.3 European Union Restriction of Hazardous Substances (RoHS)
- 2.4 Reference documents
3.0 General description
- 3.1 Standard features
- 3.2 Media description
- 3.3 Performance
- 3.4 Reliability
- 3.5 Formatted capacities
- 3.6 Programmable drive capacity
- 3.7 Factory-installed accessories
- 3.8 Options (factory installed)
- 3.9 User-installed accessories
4.0 Performance characteristics
- 4.1 Internal drive characteristics
- 4.2 Seek time
- 4.3 Start/stop time
- 4.4 Prefetch/multi-segmented cache control
- 4.5 Cache operation
  - 4.5.1 Caching write data
  - 4.5.2 Prefetch operation
5.0 Reliability specifications
- 5.1 Error rates
- 5.2 Reliability and service
6.0 Physical/electrical specifications
- 6.1 AC power requirements
- 6.2 DC power requirements
- 6.3 Power dissipation
- 6.4 Environmental limits
- 6.5 Mechanical specifications
7.0 Defect and error management
- 7.1 Drive internal defects/errors
- 7.2 Drive error recovery procedures
- 7.3 SAS system errors
- 7.4 Background Media Scan
- 7.5 Media Pre-Scan
- 7.6 Deferred Auto-Reallocation
- 7.7 Idle Read After Write
8.0 Installation
- 8.1 Drive orientation
- 8.2 Cooling
- 8.3 Drive mounting
- 8.4 Grounding
9.0 Interface requirements
- 9.1 SAS features
  - 9.1.1 task management functions
  - 9.1.2 task management responses
- 9.2 Dual port support
- 9.3 SCSI commands supported
  - 9.3.1 Inquiry data
  - 9.3.2 Mode Sense data
- 9.4 Miscellaneous operating features and conditions
- 9.5 Signal characteristics
  - 9.5.1 Ready LED Out
  - 9.5.2 Differential signals
10.0 Seagate Technology support services
- Numerics
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- L
- M
- N
- O
- P
- Q
- R
- S
- T
- U
- V
- W
- Z