IBM LTO Ultrium 4, Installation And User Manual

Page: 48 / 92

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
H
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
select the function. The SCD changes to a flashing
C
.
4.
Insert a scratch (blank) data cartridge. The SCD changes to a flashing
H
. The
tape drive runs the tests.
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 J: Fast read/write test
About this task
Approximate Run Time = 5 minutes per loop
Total Number of Loops = 10
Function Code
J
performs tests to ensure that the drive can read from and write
to tape.
Record the time it takes for the test to complete. Compare the recorded time with
the approximate run time. If the test runs successfully but the execution time is
significantly longer than the approximate run time, run “Function Code F: Write
performance test” on page 30. If the Write Performance Test fails, replace the
media.
Press the unload button to stop the diagnostic and exit Maintenance Mode.
Pressing the unload button once will abort the test at the end of the current test
loop. Pressing the unload button twice will abort the test immediately. Wait for the
drive to rewind the tape and unload the cartridge.
Attention: For this test, insert only a scratch (blank) data cartridge or a cartridge
that can be overwritten. During the test, the drive overwrites the data on the
cartridge.
Note: If you inserted an invalid tape cartridge (e.g. Gen 1, WORM media, or
non-FMR cartridge), error code
7
appears in the SCD and the amber Fault
status LED flashes. If you inserted a write-protected cartridge, or the media
32
LTO Ultrium 4 Half High Tape Drive