2. Halt the controller, pressing
y
when you are prompted to confirm the halt:
system node halt -node
node_name
The confirmation message looks like the following:
Warning: This operation will cause controller "node-name" to be marked
as unhealthy. Unhealthy nodes do not participate in quorum voting. If
the controller goes out of service and one more controller goes out of
service there will be a data serving failure for the entire cluster.
This will cause a client disruption. Use "cluster show" to verify
cluster state. If possible bring other nodes online to improve the
resiliency of this cluster.
Do you want to continue? {y|n}:
You must perform a clean system shutdown before replacing the chassis to avoid losing
unwritten data in the nonvolatile memory (NVMEM/NVRAM). Depending on your system, if
the NVMEM/NVRAM LED is flashing, there is content in the NVMEM/NVRAM that has not
been saved to disk. You need to reboot the controller and start from the beginning of this
procedure. If repeated attempts to cleanly shut down the controller fail, be aware that you
might lose any data that was not saved to disk.
3. Where applicable, halt the second controller to avoid a possible quorum error message in an HA pair
configuration:
system node halt -node
second_node_name
-ignore-quorum-warnings true
-skip-lif-migration-before-shutdown true
Answer
y
when prompted.
Option 2: Controllers are in a two-node MetroCluster configuration
To shut down the impaired controller, you must determine the status of the controller and, if necessary, switch
over the controller so that the healthy controller continues to serve data from the impaired controller storage.
About this task
• If you are using NetApp Storage Encryption, you must have reset the MSID using the instructions in the
"Return a FIPS drive or SED to unprotected mode" section of
NetApp Encryption overview with the CLI
• You must leave the power supplies turned on at the end of this procedure to provide power to the healthy
controller.
Steps
1. Check the MetroCluster status to determine whether the impaired controller has automatically switched
over to the healthy controller:
metrocluster show
2. Depending on whether an automatic switchover has occurred, proceed according to the following table:
If the impaired controller…
Then…
Has automatically switched over
Proceed to the next step.
2
