Cannot update standby appliance
Appliance update does not complete on the standby appliance in a highly-available cluster
The standby appliance is not available or is not connected
While in the data center, select from the following options:
Configure appliance networking from the Maintenance console to create a temporary IP address on the standby appliance, which allows an HPE OneView authorized user to retry the update operations on the standby appliance.
More information
"Configure appliance networking from the Maintenance console" in the HPE OneView User Guide