NetApp ASA C Series Install page 20

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
• If you have a MetroCluster configuration, you must have confirmed that the MetroCluster Configuration
State is configured and that the nodes are in an enabled and normal state
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:
system node autosupport invoke -node * -type all -message MAINT=2h
2. Disable automatic giveback from the console of the healthy controller:
–node local -auto-giveback false
3. Take the impaired controller to the LOADER prompt:
If the impaired controller is
displaying...
The LOADER prompt
Waiting for giveback...
System prompt or password
prompt (enter system password)
Replace the boot media - ASA C250
To replace the boot media, you must remove the impaired controller module, install the
replacement boot media, and transfer the boot image to a USB flash drive.
Step 1: Remove the controller module
To access components inside the controller module, you must first remove the controller module from the
system, and then remove the cover on the controller module.
Steps
1. If you are not already grounded, properly ground yourself.
2. Unplug the controller module power supplies from the source.
3. Release the power cable retainers, and then unplug the cables from the power supplies.
18
Synchronize a node with the
Then...
Go to Remove controller module.
Press Ctrl-C, and then respond
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.
cluster.
(metrocluster node
storage failover modify
when prompted.
y
show).
cluster1:*>