Quantum DLT 4000 Product Manual page 149

c. Release the Unload button and press the button again within 4
seconds. The second press should take less than 1 second.
d. The Tape in Use and the Write Protect indicators blink,
showing the tape subsystem recognizes the firmware update
mode has been selected.
e. If selecting the firmware update mode is not successful (for
example, pressing the button the second time takes longer
than one second) the Write Protect indicator should stop
blinking within several seconds.
Try the procedure again. If the drive and controller are not
properly communicating, you cannot select firmware update.
3. Once you have selected the firmware update mode, insert a cartridge
into the drive, which:
a. Temporarily turns off the Tape in Use and Write Protect
indicators.
_________________________ NOTE ____________________________
Calibration and directory processing cause the tape to move for a few
minutes before data is actually read.
___________________________________________________________
b. Automatically reads the cartridge
c. Examines the data
d. Verifies the data is a valid DLT4000 firmware image
Firmware update mode is automatically cleared at this
point. If the firmware image is valid and:
4. While the drive code goes through the update, the Write Protect and
Tape in Use indicators flash alternately.
5. When the drive code update is complete, the drive resets, and goes
through Power-On Self-Test (POST). The process waits until the tape
is reloaded at beginning of tape (BOT).
If the drive code is up-to-date, the drive code does not go
through an update.
If the drive code is not up-to-date, the drive code goes through
an update, taking 2 to 3 minutes.
DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem 7-7
Firmware Update (From Tape)