Fujitsu MBA3073NC Product Manual - Page 111

Troubleshooting at the repair site, Table 6.3, HDD troubleshooting, CAUTION

Get Fujitsu MBA3073NC - Enterprise 73.5 GB Hard Drive PDF manuals and user guides View all Fujitsu MBA3073NC manuals
Add to My Manuals
Save this manual to your list of manuals

Page 111 highlights

6.4.3 Troubleshooting at the repair site For maintenance at this level, we recommend additional testing of the HDD and signal checking. The sense data posted from the HDD helps with troubleshooting. This sense data makes the error type clear (functional, mechanical, or electrical error). Chapter 7 error analysis by sense data, and gives supplementary information on finding the error cause (faulty part). Table 6.3 lists how to detect a faulty HDD subassembly. This fault finding requires a working host computer or HDD test equipment to recreate the error conditions. If the detected error cannot be recreated in an ordinary test, HDD conditions can be changed to force the error to recur. This is done by changing the DC voltage or the ambient temperature of the HDD. If the error does not recur with changed conditions, the HDD is not faulty. If no error occurs in the HDD test, notify the user of the test results, and find out from the user the environment conditions where the HDD is used. Table 6.3 HDD troubleshooting Item Frequent or repeated seek errors Intermittent or nonfatal errors Recommended action Collect sense data, and see Chapter 7. Replace the HDD, and check that the test method is correct. If the error recurs, it is likely that the HDD is normal but the test method is incorrect. Replace the HDD, and check that the test method is correct. If the error recurs, it is likely that the HDD is normal but the test method is incorrect. To check performance, change the HDD conditions by changing the voltage or temperature. If the HDD error recurs or a possibly faulty part is found by troubleshooting, return the complete HDD to Fujitsu for repair. A media defect list must be included with the HDD returned to Fujitsu. If the possibly faulty part is the HDD, return the whole HDD to Fujitsu for repair. Also if a clear error (erroneous servo track information or noisy HDD) is detected in the DE, return the whole HDD to Fujitsu. A media defect list must be included with the HDD returned to Fujitsu. CAUTION Damage - Never remove any labels from the HDD or deface them in any way. - Never open the DE for any reson. Doing so will void any warranties. C141-E270 107 Downloaded from www.Manualslib.com manuals search engine

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
6.4.3
Troubleshooting at the repair site
For maintenance at this level, we recommend additional testing of the HDD and signal checking.
The sense data posted from the HDD helps with troubleshooting.
This sense data makes the error type
clear (functional, mechanical, or electrical error).
Chapter 7 error analysis by sense data, and gives
supplementary information on finding the error cause (faulty part).
Table 6.3 lists how to detect a faulty HDD subassembly.
This fault finding requires a working
host computer or HDD test equipment to recreate the error conditions.
If the detected error cannot be recreated in an ordinary test, HDD conditions can be changed to
force the error to recur.
This is done by changing the DC voltage or the ambient temperature of
the HDD.
If the error does not recur with changed conditions, the HDD is not faulty.
If no error occurs in
the HDD test, notify the user of the test results, and find out from the user the environment
conditions where the HDD is used.
Table 6.3
HDD troubleshooting
Item
Recommended action
Frequent or repeated seek errors
Collect sense data, and see Chapter 7.
Replace the HDD, and check that the test method is correct.
If the
error recurs, it is likely that the HDD is normal but the test method is
incorrect.
Intermittent or nonfatal errors
Replace the HDD, and check that the test method is correct.
If the
error recurs, it is likely that the HDD is normal but the test method is
incorrect.
To check performance, change the HDD conditions by changing the
voltage or temperature.
If the HDD error recurs or a possibly faulty part is found by troubleshooting, return the complete
HDD to Fujitsu for repair.
A media defect list must be included with the HDD returned to Fujitsu.
If the possibly faulty part is the HDD, return the whole HDD to Fujitsu for repair.
Also if a clear
error (erroneous servo track information or noisy HDD) is detected in the DE, return the whole
HDD to Fujitsu.
A media defect list must be included with the HDD returned to Fujitsu.
CAUTION
Damage
-
Never remove any labels from the HDD or deface them in any
way.
-
Never open the DE for any reson.
Doing so will void any
warranties.
C141-E270
107
Downloaded from
www.Manualslib.com
manuals search engine