IBM 865741Y Handbook - Page 189

Expansion Enclosure, Problems, Action

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Troubleshooting Expansion Enclosure Problems The SCSI expansion enclosure used to work, but does not work now. The SCSI Repeater Card used to work, but does not work now. Action Verify that all SCSI expansion enclosure hardware and cable connections are secure. Verify that: 1. The cables for all external SCSI options are connected correctly. 2. The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly. 3. Any external SCSI option is turned on. You must turn on an external SCSI option before turning on the system. For more information, see your SCSI and expansion enclosure documentation. If the SCSI expansion enclosure comes with its own test instructions, use those instructions to test it. In addition, test the power supply. If the items above are correct and the test programs found no problem, have the server and SCSI expansion enclosure serviced. Verify that all SCSI Repeater Card hardware and cable connections are secure. Verify that: 1. The cables for all external SCSI options are connected correctly. 2. The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly. 3. Any external SCSI option is turned on. You must turn on an external SCSI option before turning on the system. For more information, see your SCSI documentation. If the SCSI Repeater Card comes with its own test instructions, use those instructions to test it. If the items above are correct and the test programs found no problem, have the server and SCSI Repeater Card serviced. Chapter 5. Solving Problems 171

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Troubleshooting
Expansion Enclosure
Problems
Action
The SCSI expansion
enclosure used to work,
but does not work now.
Verify that all SCSI expansion enclosure hardware and
cable connections are secure.
Verify that:
1.
The cables for all external SCSI options are
connected correctly.
2.
The last option in each SCSI chain, or the end of
the SCSI cable, is terminated correctly.
3.
Any external SCSI option is turned on.
You must
turn on an external SCSI option before turning on
the system.
For more information, see your SCSI and expansion
enclosure documentation.
If the SCSI expansion enclosure comes with its own test
instructions, use those instructions to test it.
In
addition, test the power supply.
If the items above are correct and the test programs
found no problem, have the server and SCSI expansion
enclosure serviced.
The SCSI Repeater Card
used to work, but does
not work now.
Verify that all SCSI Repeater Card hardware and cable
connections are secure.
Verify that:
1.
The cables for all external SCSI options are
connected correctly.
2.
The last option in each SCSI chain, or the end of
the SCSI cable, is terminated correctly.
3.
Any external SCSI option is turned on.
You must
turn on an external SCSI option before turning on
the system.
For more information, see your SCSI documentation.
If the SCSI Repeater Card comes with its own test
instructions, use those instructions to test it.
If the items above are correct and the test programs
found no problem, have the server and SCSI Repeater
Card serviced.
Chapter 5.
Solving Problems
171