Administrator's Guide

3. Extend the hard drive drawer (3).
6. Replace all hard drives.
IMPORTANT: Install the hard drives in the same slots from which you removed them or the
system might fail. Use the drive labels to ensure you replace the drives in the correct order.
7. Push the hard drive drawer back into the messaging system enclosure.
8. Plug in all cables at the back of the messaging system enclosure, and ensure that all cables
are returned to their original locations.
9. Power on the messaging system by pressing the power button On.
10. Confirm that the messaging system has resumed normal operations.
Removing and replacing the midplane board
This section describes how to remove and replace the midplane board in the messaging system.
Removing the midplane board
To remove the midplane board:
1. Use System Manager to identify the failed component.
2. Verify the failed component by checking for a blinking amber LED on the failed component.
3. 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.
4. 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).
Removing and replacing the midplane board 77