Seagate FD-235HF Manuals

Manuals and User Guides for Seagate FD-235HF. We have 1 Seagate FD-235HF manual available for free PDF download: Product Manual

Seagate FD-235HF Product Manual (104 pages)

Brand: Seagate | Category: Storage | Size: 3 MB

Table of Contents
8
Scope
12
Figure 1. Barracuda 2LP Disc Drive (ST32550N Drive Shown)
12
Applicable Standard and Reference Documentation
14
Standards
14
Applicable Reference Documents
14
General Description
16
Figure 2. Barracuda 2LP Disc Drive (Exploded View)
16
Standard Features
18
Performance
18
Reliability
18
Unformatted and Formatted Capacities
19
Options
19
Installation
20
Performance Characteristics
22
Internal Drive Characteristics
22
SCSI Seek Performance Characteristics
22
Seek Time
24
Format Drive Command Execution Time
24
Figure 3. ASA I OEM Thermal Calibration
24
General Performance Characteristics
25
Start/Stop Time
26
Prefetch/Multi-Segmented Cache Control
26
Caching Write Data
27
Synchronized Spindle Operation
28
Figure 4. Synchronized Drive Interconnect Diagram
28
Figure 5. Synchronized Reference Signal Characteristics
29
Reliability Specifications
32
Error Rates
32
Environmental Interference
32
Write Errors
32
Seek Errors
33
Reliability and Service
33
Mean Time between Failures (MTBF)
33
Air Flow
33
Figure 6. Air Flow Pattern (ST32550N Drive Shown)
34
Figure 7. WYGX Temperature Measurement Locations
35
Figure 8. HYHX Temperature Measurement Locations
36
Figure 9. JYHX Temperature Measurement Locations
37
Figure 10. KYHX Temperature Measurement Locations
38
Figure 11. ZYHX Temperature Measurement Locations
39
Figure 12. PYJX Temperature Measurement Locations
40
Figure 13. Temperature Measurement Location (ST32550N Shown)
40
Preventive Maintenance
41
Service Life
41
Service Philosophy
41
Installation
41
Service Tools
41
Hot Plugging Barracuda 2LP Disc Drives
41
Physical/Electrical Specifications
44
AC Power Requirements
44
DC Power Requirements
44
Conducted Noise Immunity
45
Power Sequencing
45
Current Profile
46
Figure 14. Barracuda 2LP Drives Typical +12V Current Profile
46
Heat/Power Dissipation
47
Environmental Limits
47
Temperature
47
Relative Humidity
47
Effective Altitude (Sea Level)
48
Shock and Vibration
48
Air Cleanliness
49
Acoustics
49
Electromagnetic Compatibility
49
Mechanical Specifications
50
Figure 15. ST31250N/ND and ST32550N/ND Mounting Configuration Dimensions
50
Figure 16. ST31250W/WD and ST32550W/WD Mounting Configuration Dimensions
51
Figure 17. ST31250WC/DC and ST32550WC/DC Mounting Configuration Dimensions
52
Drive Orientation
53
Cooling
53
Drive Mounting
53
Figure 18. Recommended Mounting
53
Media Characteristics
54
Media Description
54
Defect and Error Management
56
Defects and Errors
56
Option/Configuration Headers
58
Drive ID/Option Select Headers
58
ST31250N/ND and ST32550N/ND Configuration
58
Figure 19. ST31250N/ND and ST32550N/ND Jumper Connectors
58
ST31250W/WD and ST32550W/WD Configuration
61
Figure 20. ST31250W/WD and ST32550W/WD Jumper Connectors
61
ST31250WC/DC and ST32550WC/DC Configuration
64
Figure 21. ST31250WC/DC and ST32550WC/DC Jumper Connectors
64
Synchronized Spindles Interface
66
Electrical Description
66
Figure 22. SCSI Reference Index Signal Driver/Receiver Combination
66
Figure 23. ST31250N/ND and ST32550N/ND Configuration Select Header
67
Figure 24. ST31250W/WD and ST32550W/WD Configuration Select Header
67
Grounding
68
Figure 25. ST31250WC/DC and ST32550WC/DC Configuration Select Header
68
Interface Requirements
70
General Description
70
SCSI Interface Messages Supported
70
Table 1. SCSI Interface Messages Supported
70
SCSI Interface Commands Supported
71
Table 2. Supported Commands
71
Inquiry Data
73
Table 3. Barracuda 2LP Family Drive Inquiry Data-ASA I
73
Table 4. Barracuda 2LP Family Drive Inquiry Data-ASA II
73
Mode Sense Data
74
Table 5. Mode Sense Data, ST31250 Default Values-ASA I (SCSI-1 Implementation)
74
Table 6. Mode Sense Data, ST32550 Default Values-ASA I (SCSI-1 Implementation)
74
Table 7. Mode Sense Data, ST31250 Default Values-ASA I (SCSI-2 Implementation)
75
Table 8. Mode Sense Data, ST32550 Default Values-ASA I (SCS-2 Implementation)
75
Table 9. Mode Sense Data, ST31250 Default Values-ASA II (SCSI-2 Implementation)
76
Table 10. Mode Sense Data, ST32550 Default Values-ASA II (SCSI-2 Implementation)
76
SCSI Bus Conditions and Miscellaneous Features Supported
77
Table 11. SCSI Bus Conditions and Other Miscellaneous Features
77
Synchronous Data Transfer
78
Synchronous Data Transfer Periods Supported
78
REQ/ACK Offset
78
Table 12. Synchronous Data Transfer Periods
78
DC Cable and Connector
79
SCSI Physical Interface
79
Figure 26. ST31250N/ND and ST32550N/ND Physical Interface
79
Table 13. Mating Connector Parts
79
Figure 27. ST31250W/WD and ST32550W/WD Physical Interface
80
Figure 28. ST31250WC/DC and ST32550WC/DC Physical Interface
80
Physical Characteristics
81
Connector Requirements
82
Electrical Description
83
Figure 29. Single-Ended Transmitters and Receivers
84
Figure 30. Typical Differential I/O Line Transmitter/Receiver and Terminators
85
SCSI Non-Wide Physical Interface
87
Figure 31. Non-Shielded SCSI Device Connector
87
Table 14. Single-Ended Cable Pin Assignments for ST31250N and ST32550N Drives
88
Table 15. Differential Cable Pin Assignments for ST31250ND and ST32550ND Drives
89
SCSI Wide Physical Interface
90
Figure 32. Wide SCSI Device Connector
90
Table 16. Single-Ended Contact Assignments for ST31250W and ST32550W Drives
91
Table 17. Differential Contact Assignments for ST31250WD and ST32550WD Drives
92
SCSI Single-Connector Attachment (SCA) Physical Interface
93
Figure 33. Non-Shielded, 80-Pin I/O and DC Power Single-Connector Attachment (SCA)
93
Table 18. SCA Contact Assignments for ST31250WC and ST32550WC Drives
94
Table 19. SCA Contact Assignments for ST31250DC and ST32550DC Drives
95
Table 20. Disc Drive SCSI Timing
96
Index
98

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Seagate FD-235HF Product Manual (104 pages)

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