HP Enterprise Modular Library E-Series User Guide

Operating problems
Table 24 Operating problems
Corrective actionProblem
The host computer cannot communicate
with the library.
• Make sure that Command View TL reports a green status for the library
and tape drives.
• Make sure that the host computer was added to the Secure Manager using
the Command View TL software, and was given access to library
components.
• Check library network configuration.
• Make sure that there is power to library components.
• Make sure that cable connections and termination are correct.
• Check that the interface controller is configured correctly for the SAN it is
attached to (for example, fabric or loop).
• Make sure that the interface controller link LEDs show activity.
• Restart the host and the library.
A tape cartridge (medium) is reported
not present.
• Make sure that the designated tape cartridge is present and properly
seated. (For a tape drive, make sure that the tape cartridge is completely
unloaded.) Then, retry the command.
• Make sure that the tape cartridge has good barcode labels, or that the
library is configured to not use labels.
• On the OCP, make sure Support→Service Menu+autoaudit is turned On.
If autoaudit is Off, the library does not do an inventory and therefore might
report storage slots with tape cartridges as being empty.
• Perform an inventory by opening and closing the center door.
A move command failed.
• Review event logs for detailed information.
• Check the source and destination. The source should hold the tape cartridge
to be moved; the destination should be empty.
• Make sure that the picker is empty and that there are no obstructions.
• Retry the command.
Use barcoded media and configure the library to use barcodes. Expect
inventory times ranging from 30 minutes for a 24U library to 1 hour for a
40U library with unlabeled media.
Long inventory times.
A warning indicates that the redundant power supply failed. Make sure that
there is AC power to the power supply. If it is receiving power, replace the
power supply.
Redundant power supply warning.
Tape drive problems
IMPORTANT: For LTO4 or later tape drives, you must use FC port A to connect the tape drive to
the SAN unless you are using ETLA custom mapping in which case either port A or B can be used.
Table 25 Tape drive problems
Corrective actionProblem
This is indicated by a Drive Communication Time-out error.The library is unable to communicate
with a tape drive.
• Tape drives added to new drive bays require a reboot.
• Check link indicators on the interface controllers (LTO2 and LTO3 tape
drives) or on the switch for the internal network (LTO4 and later tape drives).
Troubleshooting 57