9. Confirm the target controller is ready for giveback with the
storage failover show
command.
10. Giveback only the CFO aggregates with the
storage failover giveback -fromnode local
-only-cfo-aggregates true
command.
◦
If the command fails because of a failed disk, physically disengage the failed disk, but leave the disk in
the slot until a replacement is received.
◦
If the command fails because of an open CIFS sessions, check with customer how to close out CIFS
sessions.
Terminating CIFS can cause loss of data.
◦
If the command fails because the partner "not ready", wait 5 minutes for the NVMEMs to synchronize.
◦
If the command fails because of an NDMP, SnapMirror, or SnapVault process, disable the process. See
the appropriate Documentation Center for more information.
11. Once the giveback completes, check the failover and giveback status with the
storage failover show
and
`storage failover show
-giveback` commands.
Only the CFO aggregates (root aggregate and CFO style data aggregates) will be shown.
12. Move the console cable to the target controller.
a. If you are running ONTAP 9.6 or later, run the security key-manager onboard sync:
b. Run the
security key-manager onboard sync
command and then enter the passphrase when
prompted.
c. Enter the
security key-manager key query
command to see a detailed view of all keys stored
in the onboard key manager and verify that the
Restored
column =
yes/true
for all authentication
keys.
If the
Restored
column = anything other than
yes/true
, contact Customer Support.
d. Wait 10 minutes for the key to synchronize across the cluster.
13. Move the console cable to the partner controller.
14. Give back the target controller using the
storage failover giveback -fromnode local
command.
15. Check the giveback status, 3 minutes after it reports complete, using the
storage failover show
command.
If giveback is not complete after 20 minutes, contact Customer Support.
16. At the clustershell prompt, enter the
net int show -is-home false
command to list the logical
interfaces that are not on their home controller and port.
If any interfaces are listed as
false
, revert those interfaces back to their home port using the
net int
revert
command.
17. Move the console cable to the target controller and run the
version -v
command to check the ONTAP
versions.
18. Restore automatic giveback if you disabled it by using the
storage failover modify -node local
-auto-giveback true
command.
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