Before you begin
• All disk shelves must be working properly.
• If your system is in an HA pair, the partner node must be able to take over the node associated with the
NVRAM module that is being replaced.
• This procedure uses the following terminology:
◦
The impaired node is the node on which you are performing maintenance.
◦
The healthy node is the HA partner of the impaired node.
• This procedure includes steps for automatically or manually reassigning disks to the controller module
associated with the new NVRAM module. You must reassign the disks when directed to in the procedure.
Completing the disk reassignment before giveback can cause issues.
• You must replace the failed component with a replacement FRU component you received from your
provider.
• You cannot change any disks or disk shelves as part of this procedure.
Step 1: Shut down the impaired node
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.
About this task
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_downh
The following AutoSupport message suppresses automatic case creation for two hours:
cluster1:*>
system node autosupport invoke -node * -type all -message MAINT=2h
2. 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 the next step.
Waiting for giveback…
Press Ctrl-C, and then respond
y
when prompted.
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