IBM 3592 Maintenance Information page 258

4. If Steps 1-3 are OK, run the Fibre Channel wrap test. See "Fibre wrap test" on page 236.
Note: Refer to "Fibre Channel attachments" on page 177 to ensure that all of the Fibre Channel
cables are installed correctly.
5. If the Fibre Channel wrap test runs successfully, go to Step 6. If the Fibre Channel wrap test fails,
replace the drive canister. See "FID 85: Drive canister" on page 252.
6. If the Fibre Channel wrap test runs successfully, check the fibre attachment at the host to confirm
that a problem still exists.
Note: Ensure that you remove the duplex wrap tool, and restore the fibre cable connections.
7. Complete one of the following procedures -
• "Checking channel attachment - System i (OS/400)" on page 225
• "Checking channel attachment - AIX" on page 225
• "Checking channel attachment - Linux" on page 229
• "Checking channel attachment - HP-UX" on page 232
• "Checking channel attachment with NTUTIL under Windows " on page 236
• "Checking channel attachment - Solaris" on page 230
This action verifies that the drive is available and properly configured at the host.
8. If the problem persists, check the Fibre Channel attachment at the drive.
9. If the problem persists after the fibre attachment is checked at the host and the drive, replace the
fibre cable.
10. If the problem persists after the fibre cable is replaced, inform the customer that the problem is
probably with the host hardware or software.
11. When the problem is corrected (or determined to be a host problem), restore all of the Fibre Channel
cables to their correct position, then return to the procedure that sent you here or go to "End of call"
on page 185.
Multiple tape drives on Fibre Channel
1. Use one of the following procedures to determine whether all of the drives on the Fibre Channel have
the problem.
• "Checking channel attachment - System i (OS/400)" on page 225
• "Checking channel attachment - AIX" on page 225
• "Checking channel attachment - Linux" on page 229
• "Checking channel attachment - HP-UX" on page 232
• "Checking channel attachment with NTUTIL under Windows " on page 236
• "Checking channel attachment - Solaris" on page 230
2. Verify the fibre topology and try to isolate which part of the Fibre Channel network is experiencing
problems. Verify that the switch hub configuration, host adapter, host software levels, and device
drivers are supported.
See Storage Area Network (SAN) Guide and Fibre Support Information in "Website information" on page
xviii for the latest information.
3. If the problem exists on a few drives, use the "Single tape drive on Fibre Channel loop" procedure;
otherwise -
a. Disconnect all except one failing drive on the Fibre Channel.
b. Test the fibre connection to determine whether a failure occurs on that drive. If it does, use the
"Single tape drive on Fibre Channel loop" procedure.
c. Continue to connect one drive at a time onto the fibre loop.
238 IBM 3592 TS1140, TS1150, TS1155, and TS1160 Tape Drives: Maintenance Information