220 Troubleshooting the Tape Library
T022
T022 - Tape Drive Communication Failure
Description GUI Description: Communication to the tape drive has failed inside the drive
sled assembly.
Explanation: Internal to the tape drive, the sled control board can no longer
communicate with the tape drive.
Detection Scenarios • Routine polling between sled control board and tape drive can no longer
occur.
• Specific commands such as unload, reset, etc. are not responded to.
Root Causes • Cable broken, unplugged, damaged, etc.
• Tape drive failure
Service Resolution
Steps
1 Perform RR001 - Remove and Replace Drive Sled
on page 420. See also
Removing and Replacing a Tape Drive
on page 129.
2Use the Details option in the RAS ticket to identify which tape drive is
generating the RAS ticket. If possible, check the front of the tape drive for
error indications.
3 Clear the RAS ticket. Upgrade the library firmware to 400G or later revision
of code. A timing issue was addressed in the 400G library firmware which
was occasionally falsely reporting T022
RAS tickets.
Possible CRUs/FRUs Note: Read and perform all resolution steps before dispatching any parts.
Dispatch the first part listed below for replacement. If this does not solve the
problem, dispatch the second part, and so on, in order. Dispatch only one part
(or set of parts) at a time.
1Drive Sled
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