Administrator's Guide

2. Verify that the replacement fan module is working properly by checking the associated LED
status.
3. Confirm that the messaging system has resumed normal operations.
Removing and replacing the power UID button assembly
This section describes how to remove and replace the power UID button assembly in the messaging
system.
Removing the power UID button assembly
To remove the power UID button assembly:
1. Power off the system:
1. Shut down blade 2 by clicking on Start and then Shut Down while you are connected to
blade 1.
2. Shut down blade 1 by clicking on Start and then Shut Down while you are connected to
blade 2.
3. Power off the expansion nodes, if present, by pressing and holding the power button at
the back.
4. Power off the storage solution by pressing and holding the power button at the back of
the enclosure.
5. Disconnect the power cables.
2. Extend the hard drive drawer:
1. Press upward on the release button on the hard drive drawer (1).
2. Pull the drawer handle down 90 degrees (2).
3. Extend the hard drive drawer (3).
3. Label the hard drives.
Removing and replacing the power UID button assembly 87