Hot-Swap Blower Replacement
Note: If a blower assembly is being replaced for a redundant failure, after the service
repair action is completed, ask the customer to check the crontab file for any
power/cooling warning messages. When a power or cooling error is encountered,
AIX adds an entry to the crontab file to ″wall″ a warning message every 12
hours, to alert or remind the customer of the problem. Replacing the faulty part
does not clear this crontab entry, so unless the crontab file is edited to remove
this entry, the customer continues to be reminded of the failure despite its having
been repaired. The crontab -l command reads the crontab file to determine if
an entry exists. The crontab -e command edits the file.
To replace a hot-swap blower, do the following:
1. Grasp the blower by its snap button and ensure that the snap button is in the
unlocked position.
Note: Snap buttons are in the unlocked position when the button component is
pulled back as far as possible.
2. Install the two alignment tabs located on the lower back edge of the blower
assembly into the two retaining slots located on the chassis ledge.
3. Pivoting from the back, lower the front of the blower onto its docking connector.
4. Push down on the front of the blower until the front flange of the blower is seated
on top of the chassis ledge.
5. Push down on the snap button, locking the blower in place.
6. Return the subsystem back to the operating position as described in “D20 Operating
Position” on page 126.
7. Close the rack door.
136 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
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