• You must always capture the controller’s console output to a text file.
This provides you a record of the procedure so that you can troubleshoot any issues that you might
encounter during the replacement process.
Shut down the impaired controller - AFF A200
To shut down the impaired controller, you must determine the status of the controller and,
if necessary, take over the controller so that the healthy controller continues to serve data
from the impaired controller storage.
If you have a cluster with more than two nodes, it must be in quorum. If the cluster is not in quorum or a healthy
controller shows false for eligibility and health, you must correct the issue before shutting down the impaired
controller; see the
Administration overview with the CLI.
Steps
1. If AutoSupport is enabled, suppress automatic case creation by invoking an AutoSupport message:
system node autosupport invoke -node * -type all -message
MAINT=_number_of_hours_down_h
The following AutoSupport message suppresses automatic case creation for two hours: cluster1:*>
system node autosupport invoke -node * -type all -message MAINT=2h
2. If the impaired controller is part of an HA pair, disable automatic giveback from the console of the healthy
controller:
storage failover modify -node local -auto-giveback false
3. Take the impaired controller to the LOADER prompt:
If the impaired controller is
displaying…
Then…
The LOADER prompt Go to Remove controller module..
Waiting for giveback…
Press Ctrl-C, and then respond y.
System prompt or password
prompt (enter system password)
Take over or halt the impaired controller from the healthy controller:
storage failover takeover -ofnode
impaired_node_name
+
When the impaired controller shows Waiting for giveback…, press
Ctrl-C, and then respond
y.
4. If the system has only one controller module in the chassis, turn off the power supplies, and then unplug
the impaired controller’s power cords from the power source.
Replace the controller module hardware - AFF A200
To replace the controller module hardware, you must remove the impaired controller,
move FRU components to the replacement controller module, install the replacement
controller module in the chassis, and then boot the system to Maintenance mode.
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