v If no error is detected, the diagnostic will exit Maintenance Mode,
0
temporarily appears in the SCD, and the drive returns to Operational Mode
(SCD blank, Green Ready/Activity status LED ON, and the Amber Fault
status LED is OFF).
v If an error is detected, the Fault status LED flashes amber and the drive
posts an error code to the SCD. To determine the error, locate the code in
“Error codes and messages” on page 46. To clear the error, either turn the
power off and then on again, or reboot the drive by pressing and holding the
unload button for 10 seconds.
Function Code 9: Display error code log
About this task
Function Code
9
displays the last ten error codes, one at a time (the codes are
ordered; the most recent is presented first and the oldest is presented last). If there
are no errors in the log, function code
0
displays in the single-character display
(SCD) and exits Maintenance Mode.
Procedure
1. Place the drive in Maintenance Mode. For instructions, see “Entering
Maintenance Mode” on page 18.
2. Press the unload button once per second until
9
appears in the SCD. (If you
cycle past the desired code, press the unload button once per second until the
code reappears.)
3. Press and hold the unload button for three or more seconds, then release it to
view the most recent error code.
4. Press the unload button again to view successive error codes. Let two to three
seconds pass between each depression. The SCD will display
0
when all the
error codes have been displayed.
5. After viewing all error codes, exit this function by pressing the unload button
again. The SCD will display
0
and exit Maintenance Mode.
Function Code A: Clear error code log
About this task
Function Code
A
erases the contents of the error code log.
Procedure
1. Place the drive in Maintenance Mode. For instructions, see “Entering
Maintenance Mode” on page 18.
2. Press the unload button once per second until
A
appears in the SCD. (If you
cycle past the desired code, press the unload button once per second until the
code reappears.)
28 LTO Ultrium 4 Half High Tape Drive
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