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Example 5-36 Powering down the CEC
rpower cec off
The command that is shown in Example 5-37 verifies that the CECs are off.
Example 5-37 Verifying the CEC are off
rpower cec state
Placing the frames in rack standby mode
After all of the CECs are powered off and the Central Network Manager is off, the frames are
placed in rack standby mode, as shown in Example 5-38.
Example 5-38 Frames that are placed into rack standby mode
rpower frame rackstandby
The command that is shown in Example 5-39 validates that the frames are in rack standby
issue.
Example 5-39 Validating the frames are in rack standby
rpower frame state
Turning off the frames
After the frames enter rack standby, they are ready for power off. Manually turn of the red
switch for each frame.
Shutting down EMS and HMCs
After all of the nodes and CECs are down and the frames are in rack standby, the EMS and
HMCs are shutdown. Depending on the goal for this shutdown process, this step might be
skipped.
If the goal is to shut down only the 775 servers and attached storage, these steps are
completed and you stop here in the process.
If the goal is to restart the entire cluster, including the EMS and HMCs, you must continue
with the following process to shut down the HMCs and the EMS:
1. Log in to the HMC and issue the following command to shut down the HMCs:
$ hmcshutdown -t now
2. Shut down the primary and backup EMS servers. Start with the backup EMS by issuing
the following command:
$ shutdown -h now
3. On the primary EMS, shut down the following daemons in this order:
i. Stop Teal:
$ <need stopsrc>
ii. Stop xcatd:
$ <need stopsrc>
iii. Stop dhcp:
$ <need stopsrc>
Chapter 5. Maintenance and serviceability
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