Quantum DLT 2000 Handbook page 158

This innovative feature enables Quantum and its resellers to devel-
op and issue new versions of drive firmware that enhance opera-
tion and product value. For instance, firmware is sometimes
upgraded in the field to introduce an improved compression algo-
rithm or to refine a particular SCSI command. In other cases,
firmware upgrades may be required to help certain types of backup
software to work with DLTtape drives.
Two Ways To Upgrade
There are two ways to perform a field upgrade of DLTtape system
firmware: by tape or from your host system using the utilities
found in DLTtape Tools. Firmware upgrades are issued by either
your system vendor or direct from Quantum. You should refer to
your DLTtape drive Product Manual for complete instructions on
updating your firmware.
Performing a firmware upgrade using tape is easy. After placing your
DLTtape drive in firmware update mode, you simply insert the
Firmware Update Cartridge (available from your system vendor or
direct from Quantum) in your drive. That's it! Your DLTtape drive
will do the rest.
During the firmware update, the DLTtape drive verifies that the car-
tridge you've inserted actually contains firmware. The system then
erases the old firmware "image" from the EEPROM and replaces it
with the new version. The drive then resets itself and goes through
a Power-On Self-Test to ensure everything's working fine.
You can also upgrade DLTtape system firmware from your host
system using the utilities found in DLTtools along with the SCSI
WRITE BUFFER command. This procedure is described in your
DLTtape Product Manual. The appropriate firmware image is
QUANTUM DLTtape HANDBOOK 15.5