HP StorageWorks DAT 40m Getting Started Manual page 35

Testing after installation
Remember that the system recognizes devices during boot-up. If you swap or connect a
product when your system is running, you will need to reboot the system. Rebooting the system
will reset devices and will often resolve problems. It is good practice to reboot every time you
add a driver or install firmware.
Caution Never power off the drive during a firmware upgrade.
The server does not recognize the tape drive when it boots up
Possible reason
The power or SCSI cable is not connected
properly.
The SCSI bus is not terminated correctly.
The tape drive's SCSI ID address is not
unique.
The drive does not work
Possible reason
The drive is not receiving power from the
tape array.
There is a fault with the drive.
There is a hard error on the drive.
Recommended action
Check that the cables to the tape array are firmly
connected. Ensure that the SCSI cable is LVDS-
compliant and does not have any bent pins.
Replace, if necessary.
Check that the SCSI bus is actively terminated. (Refer
also to the documentation for your SCSI controller
and any other SCSI devices you may have.)
Make sure that each device on the SCSI bus has a
unique ID. Remember that 7 is normally reserved for
the host bus adapter. (Users of most operating
systems can run HP Library & Tape Tools to check the
SCSI IDs of each device attached to the SCSI bus,
page 29
see .)
Recommended action
Check that the tape array is connected to a power
source and switched on.
Check that the drive is properly inserted into the
tape array so that it mates with the connections at
the rear of the enclosure. The extraction lever should
be pushed in, locking the drive in position.
If the drive READY light is still off, call for assistance.
If possible, and if no other drives in the tape array
are in use, try resetting the drive, or turning the
power switch on the tape array off and then on
again. (If there is a tape cartridge loaded in the
drive, try to unload it by pressing the Eject button. If
this succeeds, switch the tape array off and then on
again.
If the problem persists, call for assistance.
The Media Caution (Clean) LED shows steady
amber. Try powering the system off and then on
again. If the error condition signal still shows, call
for service.
33