420 Troubleshooting the Tape Library
3 If step 2) does not apply, and the drive did not recover (host application failed to access media):
a. Check that a correct format tape is used.
b. If the media does not contain data, discard/replace the tape cartridge.
4 If the issue is not resolved, collect a tape drive log; then contact Service for assistance in analyzing the
drive log, as well as assistance regarding a possible tape drive firmware update.
5 You have three options:
a. Select Close to close the ticket now.
b. Select Exit to leave the ticket open for future troubleshooting.
c. Select Back to return to the Diagnostic Resolution.
DR147 – Resolve Suspect Drive Command
This DR provides customer resolution steps for T193 on page 364.
Problem: The library detected that a tape drive experienced conflicting drive commands from multiple hosts/
initiators. This issue is most likely due to multiple initiators requesting drive operations without properly
reserving the drive for Input/Output (I/O) operations.
1 Note the drive sled coordinate and initiator identification in the ticket details.
2 Use the issue description to determine whether the conflicting host is supposed to issue command
requests to the drive.
3 Determine whether multiple hosts are supposed to issue concurrent or overlapping drive requests, then
perform one of the following:
• Configure the respective applications to reserve and release the tape drive, so that command
requests are not conflicting, OR
• Configure/remove any respective application from accessing the tape drive if the interfering
operations are not intentional. If needed, use host access control or switch zoning to assure proper
device access.
4 You have three options:
a. Select Close to close the ticket now.
b. Select Exit to leave the ticket open for future troubleshooting.
c. Select Back to return to the Diagnostic Resolution.
Remove and Replace Resolutions
There is not an online remove and replace resolution for every FRU or CRU. Certain resolutions are omitted,
because none of the system RAS Tickets isolate to the FRU or CRU. Others are omitted because an online
resolution may not be useful when the library power must be off at the time of resolution. Resolutions such
as module, display, and cable spool would not be useful online, since system power must be dropped out.
RR001 - Remove and Replace Drive Sled
This RR provides customer resolution steps for:
• T01
1 on page 207
• T016
on page 214
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