NetApp ASA C Series Install page 223

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
Steps
1. Check the status of the impaired controller:
◦ If the impaired controller is at the login prompt, log in as admin.
◦ If the impaired controller is at the LOADER prompt and is part of HA configuration, log in as
admin on the healthy controller.
◦ If the impaired controller is in a standalone configuration and at LOADER prompt, contact
mysupport.netapp.com.
2. 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
3. Check the version of ONTAP the system is running on the impaired controller if up, or on the partner
controller if the impaired controller is down, using the
◦ If <lno-DARE> or <1Ono-DARE> is displayed in the command output, the system does not
support NVE, proceed to shut down the controller.
◦ If <lno-DARE> is not displayed in the command output, and the system is running ONTAP 9.5, go
to [Checking NVE or NSE on systems running ONTAP 9.5 and
◦ If <lno-DARE> is not displayed in the command output, and the system is running ONTAP 9.6 or
later, go to [Checking NVE or NSE on systems running ONTAP 9.6 and
4. If the impaired controller is part of an HA configuration, disable automatic giveback from the healthy
controller:
storage failover modify -node local -auto-giveback false
failover modify -node local -auto-giveback-after-panic false
== Option 1: Check NVE or NSE on systems running ONTAP 9.5 and earlier
Before shutting down the impaired controller, you need to check whether the system has either NetApp
Volume Encryption (NVE) or NetApp Storage Encryption (NSE) enabled. If so, you need to verify the
configuration.
Steps
1. Connect the console cable to the impaired controller.
2. Check whether NVE is configured for any volumes in the cluster:
true
If any volumes are listed in the output, NVE is configured and you need to verify the NVE
configuration. If no volumes are listed, check whether NSE is configured.
3. Check whether NSE is configured:
◦ If the command output lists the drive details with Mode & Key ID information, NSE is configured
and you need to verify the NSE configuration.
Synchronize a node with the
storage encryption disk show
cluster.
command:
version -v
later].
later].
volume show -is-encrypted
or
storage
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