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Appendix D. Troubleshooting
The first step in problem solving is establishing whether the problem lies with the
cartridge, the drive, the host computer and its connections, the backup software or
with the way the system is being operated. If none of the following advice helps
you solve the problem, contact your supplier.
The computer does not restart after installation
Possible reason Recommended action
You have connected the tape drive to an existing SCSI
bus that has other devices connected to it and the SCSI
address of your drive is identical to the address used by
another device.
Make sure that each device on the SCSI bus has a unique
ID.
For best results, connect the tape drive to a dedicated
host bus adapter. Do not connect the drive to a disk
RAID controller.
You have installed an additional SCSI host bus adapter
and its resources are conflicting with an existing adapter.
Remove the new host bus adapter and check the server
documentation.
You have disconnected the power or SCSI cable from the
computer start disk during the drive installation process.
Check that the cables to all devices are firmly connected.
The computer starts but does not recognize the tape drive
Possible reason Recommended action
The power or SCSI cable is not connected properly. Check that the cables to the tape drive are firmly
connected. Ensure that the SCSI cable is LVD-compliant
and that it does not have any bent pins. Replace if
necessary.
The SCSI bus is not terminated correctly. Check that the SCSI bus is actively terminated. (Refer to
the documentation for your SCSI controller and any
other SCSI devices you have).
The SCSI ID address of the tape drive is not unique. Make sure that each device connected to the SCSI
controller has a unique SCSI ID. Remember that 7 is
normally reserved for the host bus adapter.
The application does not recognize the tape drive
Possible reason Recommended action
The application does not support the tape drive. Refer to your manufacturer’s World Wide Web site for
details of backup applications that support the Ultrium
tape drive. Load any service packs as necessary.
Some applications require drivers to be loaded. Check that the correct SCSI and tape drive drivers are
installed. Consult the installation notes of the backup
application for details.
© Copyright IBM Corp. 2001 17