Diagnosing The Problem; Problems With The Host Computer; Computer Does Not Boot Up; Computer Boots, But Does Not Recognize The Drive - HP LTO Ultrium Technical Reference Manual

Diagnosing the problem

The first step in problem-solving is establishing whether the problem lies with the cartridge, the drive,
the host computer and its connections, or with the way the system is being operated.
NOTE:
If the drive is installed in a library, refer to troubleshooting information provided with the tape library,
the host or the backup software if the problem seems to lie in one of these areas.
If none of the following advice helps you solve the problem, contact your tape library supplier.

Problems with the host computer

Most modern host bus adapters locate and display attached devices when the system is booting up.
If the device is not detected at this stage, there is probably a problem with the physical hardware:
cables, termination, connections, power or the HBA itself.
If your drive is found on system boot up but cannot be found in the operating system, this is more
likely to be a software problem.

Computer does not boot up

Possible Cause
You have installed an additional host bus
adapter and its resources are clashing with
an existing adapter.
You have disconnected the power or cable
from the computer's boot disk during the
drive installation process.

Computer boots, but does not recognize the drive

Possible Cause
The power or interface cable is not
connected properly.
62 Troubleshooting
Potential Solution
Remove the new host bus adapter and check the server document-
ation.
Check that the cables to all devices are firmly connected.
Potential Solution
Check that the cables to the tape drive are firmly connected. Ensure
that the cable is compliant and that it is not damaged. Replace, if ne-
cessary.