Chapter 4: Operations
Diagnostic and Maintenance Functions
48 QuantumLTO-8 HH SAS User’s Guide
Entering Maintenance
Mode
The drive must be in maintenance mode to run drive diagnostics or
maintenance functions. To place the unit in maintenance mode:
1 Make sure that no cartridge is in the drive.
2 Press the Unload button three tim
es within two seconds. 0 appears
in the Single-character Display (SCD) the Ready light is flashing, and
the Fault light turns On.
Note: If a cartridge is in the tape drive, it will eject the first time
that you press the Unload button and the drive will not be
placed in maintenance mode. To continue placing the drive
in maintenance mode, perform the preceding step. While
in Maintenance Mode, the drive will not accept a cartridge
unless the drive requests it. The SCD will display a flashing
C to indicate a cartridge needs to be inserted.
Maintenance functions cannot be performed concurrently with read or
write operations. While in maintenance mode, the drive does not
receive host interface commands from the server.
Exiting Maintenance
Mode
The drive must be in maintenance mode to run drive diagnostics or
maintenance functions. To exit maintenance mode:
1 Press the Unload button on
ce per second to increment the display
character until 0 displays. Press and hold the Unload button for 3 or
more seconds then release the button to take the drive out of
maintenance mode. If no error is detected, 0 temporarily appears in
the SCD, then goes blank. The drive then exits maintenance mode
and the Ready light will turn On.
2 If
an error is detected, the SCD shows an e
rror code but still exits
maintenance mode. To determine the error, locate the code in
Appendix
A, Error Codes and Messages. To clear the error, turn the
power off, then on again.
Note: The drive also exits maintenance mode automatically after
it completes a maintenance function or after 10 minutes if
no action has occurred.
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