Q24/Q48 Tape Library
Installation and Operations Manual
4.2
Troubleshooting
PROBLEM
SOLUTION
Poor throughput performance
Try a new tape. A marginal tape can cause performance problems
due to bad spots on the tape requiring retries.
Backing up data that compresses poorly or is already compressed
will lower performance.
Check the size of the files. Small file size can impact performance.
Confirm that the backup application is utilizing block sizes of at
least 32KB, preferably 64KB. Refer to the backup application
documentation for details.
Check the network bandwidth from the host computer. If you are
backing up data over a network, consider comparing to a local-only
backup.
Make sure the backup server has enough memory to handle the
bandwidth of the backup or restore.
Clean the tape drive using:
-
OCP, see Section 3.1.7
-
RMU, see Section 3.2.9.6
Cleaning
Cannot load the cleaning
cartridge
Make sure you are using an Ultrium universal cleaning cartridge.
Contact your service representative.
Errors Displayed on Operator Control Panel
“!” in library operator panel
inventory display
Export the tape cartridge marked with an “!” in the inventory. The tape
cartridge is either damaged, incompatible with the tape drive, or the
wrong type for the attempted operation.
To find the compatible tape cartridges for your library, see
Section 2.15, Tape cartridges
There is an error code on
the LCD
Look up the error code, try to resolve the failure, and cycle the power.
See Section 4.7, Error codes.
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