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Cheetah 15K.4 SAS
Seagate Cheetah 15K.4 SAS Manuals
Manuals and User Guides for Seagate Cheetah 15K.4 SAS. We have
1
Seagate Cheetah 15K.4 SAS manual available for free PDF download: Product Manual
Seagate Cheetah 15K.4 SAS Product Manual (94 pages)
Cheetah 15K.4 SAS Product Manual
Brand:
Seagate
| Category:
Storage
| Size: 2.05 MB
Table of Contents
Table of Contents
7
1 Scope
11
Figure 1. Cheetah 15K.4 SAS Disc Drive
11
2 Standards, Compliance and Reference Documents
13
Standards
13
Electromagnetic Compatibility
13
Compliance
14
Electromagnetic Compliance
14
Reference Documents
15
3 General Description
17
Standard Features
18
Media Description
18
Performance
18
Reliability
19
Formatted Capacities
19
Programmable Drive Capacity
19
Factory-Installed Accessories
19
Factory-Installed Options
20
User-Installed Accessories
20
4 Performance Characteristics
21
Internal Drive Characteristics
21
Seek Performance Characteristics
21
Access Time
21
Format Command Execution Time (Minutes)
22
General Performance Characteristics
22
Start/Stop Time
22
Prefetch/Multi-Segmented Cache Control
23
Cache Operation
23
Caching Write Data
24
Prefetch Operation
24
Optimizing Cache Performance for Desktop and Server Applications
25
5 Reliability Specifications
27
Error Rates
27
Recoverable Errors
27
Unrecoverable Errors
27
Seek Errors
28
Interface Errors
28
Reliability and Service
28
Annualized Failure Rate (AFR)
28
Preventive Maintenance
28
Hot Plugging the Drive
28
S.M.a.r.t
29
Thermal Monitor
30
Drive Self Test (DST)
31
Product Warranty
33
6 Physical/Electrical Specifications
35
AC Power Requirements
35
DC Power Requirements
35
Conducted Noise Immunity
37
Power Sequencing
37
Current Profiles
37
Figure 2. Typical ST3146854SS Drive +12V Current Profile
38
Figure 3. Typical ST3146854SS Drive +5V Current Profile
38
Figure 4. Typical ST373454SS Drive +12V Current Profile
39
Figure 5. Typical ST373454SS Drive +5V Current Profile
39
Figure 6. Typical ST336754SS Drive +12V Current Profile
40
Figure 7. Typical ST336754SS Drive +5V Current Profile
40
Power Dissipation
41
Figure 8. ST3146854SS (3 Gbit) DC Current and Power Vs. Input/Output Operations Per Second
41
Figure 9. ST3146854SS (1.5 Gbit) DC Current and Power Vs. Input/Output Operations Per Second
41
Figure 10. ST373454SS (3 Gbit) DC Current and Power Vs. Input/Output Operations Per Second
42
Figure 11. ST373454SS (1.5 Gbit) DC Current and Power Vs. Input/Output Operations Per Second
42
Figure 12. ST336754SS (3 Gbit) DC Current and Power Vs. Input/Output Operations Per Second
43
Figure 13. ST336754SS (1.5 Gbit) DC Current and Power Vs. Input/Output Operations Per Second
43
Environmental Limits
44
Temperature
44
Figure 14. Location of the HDA Temperature Check Point
44
Relative Humidity
45
Effective Altitude (Sea Level)
45
Shock and Vibration
45
Figure 15. Recommended Mounting
46
Air Cleanliness
47
Corrosive Environment
47
Acoustics
48
Electromagnetic Susceptibility
48
Mechanical Specifications
48
Figure 16. Physical Dimensions
48
7 Defect and Error Management
49
Drive Internal Defects/Errors
49
Drive Error Recovery Procedures
49
SAS System Errors
50
8 Installation
51
Drive Orientation
51
Figure 17. Physical Interface
51
Cooling
52
Figure 18. Air Flow
52
Drive Mounting
53
Grounding
53
9 Interface Requirements
55
SAS Features
55
Task Management Functions
55
Task Management Responses
55
Dual Port Support
56
SCSI Commands Supported
57
Inquiry Data
61
Mode Sense Data
61
Miscellaneous Operating Features and Conditions
66
SAS Physical Interface
67
Figure 19. Physical Interface
67
Figure 20. SAS Connector Dimensions
68
Physical Characteristics
69
Connector Requirements
69
Figure 21. SAS Connector Dimensions
69
Electrical Description
70
Pin Descriptions
70
SAS Transmitters and Receivers
71
Power
71
Signal Characteristics
71
Ready LED out
71
Figure 22. SAS Transmitters and Receivers
71
Differential Signals
72
Figure 23. Receive Eye Mask
73
Figure 24. Reveive Tolerance Eye Mask
73
Figure 25. Sinusoidal Jitter Mask
74
Figure 26. Compliance Interconnect Test Load
80
Figure 27. Zero-Length Test Load
80
Figure 28. ISI Loss Example at 3.0 Gbps
80
Figure 29. ISI Loss Example at 1.5 Gbps
81
10 Seagate Technology Support Services
83
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