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3-2 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
Each tape drive unit used for operation must be cleaned once every 24 hours of
operation. Even tape drive units not used for operation must be cleaned once every
month.
Although cleaning work can be performed in either hot or cold system maintenance
mode, the SPARC Enterprise server power must be on when a cleaning cassette is
used. The cleaning procedure is as follows.
1. If a tape cassette has been inserted in the tape drive unit, remove it from the
unit.
2. While holding the cleaning cassette with the mark side facing right, insert
it into the tape drive unit slot.
Head cleaning begins automatically.
3. The cleaning cassette is automatically ejected when cleaning is completed.
Remove it from the slot.
4. To use the tape cassette that was removed in Step 1, reinsert it into the tape
drive unit.
5. Confirm that the tape drive unit is in the normal state.
At this point, head cleaning is finished.
If one of the following problems occurs, replace the cleaning cassette immediately:
■ The cleaning cassette is not automatically ejected within one minute after being
inserted.
■ The tape is fully wound on the take-up reel on the right side. (The cassette can no
longer be reused.)
Use only specified cleaning cassettes.
Note – Contact your sales representative for tape drive unit options on SPARC
Enterprise M8000/M9000 servers.
3.2 Cleaning an Air Filter (Server)
An air filter may be cleaned while power to the server is on. Although the air filters
must be cleaned once a year, be sure to clean them if they become visibly dirty, even
if they are not scheduled for cleaning.
A high-end server cabinet is equipped with a total of six air filters: three at the front
and three at the rear at the bottom.