User Guide

Diagnostics and Troubleshooting
Troubleshooting
52 ValueLoader LTO Tape Autoloader User Manual
Cannot read from, or write
to, a tape
• Make sure the cartridge is write enabled. (Move the write-
protect switch to the enabled position.)
• Make sure the cartridge is HP LTO compatible.
• Make sure the cartridge has not been exposed to harsh
environmental or electrical conditions and is not physically
damaged in any way.
• Many backup applications do not read from, or write to,
cartridges that were created using a different backup
application. In this case, you may have to perform an erase,
format, or label operation on the cartridge.
• Make sure you understand any data protection or overwrite
protection schemes that your backup application may be
using, which could prevent you from writing to a given
cartridge.
• Retry the operation with a different, known good tape.
• Clean the tape drive. See Cleaning the Tape Drive
on page 32
for instructions.
SCSI ID
Change drive or robotic
ID, but the host server
does not recognize the new
ID
• Make sure all SCSI devices on the same bus have a unique ID
number.
• If the SCSI bus is narrow (50-pin), verify that only SCSI IDs 0
through 7 are being used.
• Make sure to cycle power on the ValueLoader after changing
the SCSI ID.
• Reboot the host server.
Problem Solution