HP BL536A, User'S & Service Manual

Page: 93 / 165

Table 22 Parallel SCSI device not detected
Solution Problem
Device not detected •
Check that the HBA supports multiple LUNs and this feature is enabled. If
not, only the tape drive will be detected.
•
Check for conflicting SCSI IDs.
•
Power on the device before powering on the host computer.
•
Make sure the Autoloader does not have the drive off line and that the
Autoloader is not running a test.
•
Attach the device to an LVDS SCSI host adapter/bus.
•
The parallel SCSI cable length might be too long. Use a shorter cable or
remove other devices from the bus.
•
Parallel SCSI bus not properly terminated. See SCSI detection
problems (page 86) .
•
Check that the device is fully powered up and is not in an error state.
•
Check the parallel SCSI connector and terminator for bent pins.
See SCSI detection problems (page 86) for more detailed troubleshooting help.
Changed drive SCSI ID, but the host
server does not recognize the new ID. •
Make sure that all parallel SCSI devices on the same bus have unique SCSI
ID numbers.
•
Only SCSI IDs 0 through 7 are available on a narrow (50 pin) bus. If the
device is on a narrow bus and has a SCSI ID of 8 or greater, the host server
will not detect the drive. If you must use SCSI IDs 8 or greater, use a wider
bus.
•
Reboot the host server.
Table 23 Attention LED is lit
Solution Problem
This is most likely caused by a dirty drive that cannot read a tape and marks
the tape invalid. Both the Attention and Cleaning LEDs
are lit.
1. View the inventory with the RMI. Note the slots that have tapes marked with
!
.
2. Remove any magazines that contain tapes marked with
!
.
3. Remove the tapes that were marked with
!
.
4. Inspect each removed tape for damage, check that the tape is compatible
with the drive, and ensure that it is not past its usage life. See
Tape
cartridges (page 30) . Discard any tapes that are damaged or past their
usage life. Do not use cartridges that are incompatible with the tape drive.
5. Reload the magazines with tapes that have passed inspection and new
tapes to replace cartridges that did not pass inspection.
6. Replace the magazines.
7. Clean the tape drive.
Check the cartridge for contamination by loose debris. A particular cartridge sets off the
cleaning light.
Media that is moved from one environment to another can cause issues until it
has acclimated to the new conditions. A cartridge should be acclimated for at A cartridge recently imported from a
different environment is causing issues.
least 24 hours before being used, particularly if it has been stored at a
substantially different temperature or level of humidity than the device.
Operation problems 93