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Powering down the server for maintenance

This procedure should be followed whenever a server is to be powered down and will be left off for less than a day. If, however, the system is being rebooted, this procedure is not necessary.

Procedure

  1. Shut down the server(s) as described in Rebooting or shutting down a server.

  2. If your system is configured with an external System Management Unit (SMU), depress the red button located on the right of the unit to turn it off (an internal SMU is turned off when the server shuts down).

  3. Power off the storage subsystems, beginning with the enclosures that house the RAID controllers.

  4. Power off the expansion enclosures for the storage subsystems.