Ibm C2B 2.25 Brick On Sled carrier 128-pin HPC Uživatelský manuál stáhnout pdf (Strana 74)

USER RESPONSIBLE FOR VERIFYING VERSION AND COMPLETENESS

OEM FUNCTIONAL SPECIFICATION ULTRASTAR XP (DFHC) SSA MODELS 1.12/2.25 GB - 1.0" HIGH

- 25 Power on/off cycles per month

- 500 power on hours per month

6.5 Power on/off cycles

Maximum on/off cycles 1080/ year

6.6 Useful Life

Product Life 5 Years

Useful life is the length of time prior to the point at which product degradation begins to occur. The specifi-

cation for the useful life calculation is the same as that for the *MTBF specification.

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August 15, 1995 1
Publication number 3304 1
IBM Corporation 1
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Contents 5
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1.0 Description 9
1.2 Models 10
2.0 Specifications 11
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2.1.1 Capacity Equations 13
2.1.1.2 For Entire Drive 14
2.2.1 C1x Models 15
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2.2.2 C2x Models 21
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2.2.3 C4x Models 27
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2.2.4 CxB Models 33
2.2.5 Power Supply Ripple 34
2.2.7 Hot plug/unplug support 34
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Figure 10. Start Time Diagram 36
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3.0 Performance 39
3.3 Command Execution Time 40
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3.3.2 Comments 42
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3.4.7 For Queued Commands 45
3.4.8 Out of Order Transfers 45
3.5 Skew 46
3.6 Idle Time Functions 47
3.6.2 Servo Bias Measurements 48
3.6.4 Channel Calibration 48
3.7 Command Timeout Limits 49
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4.0 Mechanical 51
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4.2 Carrier Models (CxB) 57
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5.0 Electrical Interface 63
5.2 Carrier Connector 64
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5.3 SSA Link Cable 66
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5.6 Front Jumper Connector 68
5.7 Spindle Synchronization 69
5.7.5.2 Over Sync Hard-wire 70
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6.0 Reliability 73
6.5 Power on/off cycles 74
6.6 Useful Life 74
6.9 Install Defect Free 75
6.10 Periodic Maintenance 76
6.11 ESD Protection 76
7.0 Operating Limits 77
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7.2 Vibration and Shock 79
7.2.2 Output Vibration Limits 80
7.2.3 Operating Vibration 80
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7.3 Contaminants 82
7.4 Acoustic Levels 83
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8.0 Standards 85
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Bibliography 87

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