User manual

Tandberg Data Maintenance
78 StorageLoader Installation and User Manual
The tape loader responds on
the SCSI bus to the host, but
the tape drive does not respond
• Verify that a SCSI terminator is attached to both the last
and first SCSI device on the SCSI bus.
• Verify that the SCSI cables are connected to the rear of the
loader. See chapter “Installation”, section “connecting the
SCSI bus cable”.
• Make sure that the correct host controller card is installed.
• Verify that the SCSI cables are not damaged and that the
total SCSI cable length is not exceeding the maximum
required length.
• Verify that the loader SCSI ID and the drive SCSI ID are set
to unique SCSI IDs that is not used by any other SCSI
device on the same bus.
• Verify that the host application and the device drivers are
installed with the most resent patches to support the tape
drive
• Issue a system r eset from the front panel or remote
management
• Remove the back panel cover plate on the loader and
verify that the cables are properly connected to the drive.
• Reboot the loader by turning power off from the rear of the
loader and then on.
• Reboot the host system when the loader has completed it’s
power on sequence..
• Contact your service representative.
Autoloader Performance
The autoloader is not efficiently
backing up data
• Check the network bandwidth from the host system. If you
are backing u p data over a network, consider comparing to a
local - only backup.
• Make sure the autoloader and tape drive are on their own
SCSI bus and not daisy - chained to another tape drive or to
the hard drive being backed up.
• Verify that the host application and t he device drivers are
installed with the most resent patches to support the tape
drive and the loader.
• Connect the autoloader to an LVD SCSI bus and make
sure there are no SE devices on the same bus, because this
causes the entire bus to negotiate down t o SE speed.
• Clean the tape drive. See the installation and user guide,
chapter “Maintenance”, section “using the cleaning
cartridge”.
• Try a new cartridge. A marginal cartridge can cause
performance problems due to bad spots on the tape
requiring retrie s.
• Backing up compressed data lowers performance.
• Check the size of the files. Small file size can impact
performance.
Cleaning
Cannot load the cleaning
Cartridge
• Make sure there is no cartridge present in the drive before
you load a cleaning cart ridge.
• M ake sure the cleaning cartridge is not expired.
• Contact your service representative.