Check manual page of cisco_asa_failover
Cisco ASA: Cluster failover
The Cisco "Adaptive Security Appliances" (ASA) support to run as a failover
This check allows to monitor whether such a cluster is running normal, or
if it has failed over to the partner device for any reason.
The check will report OK as long as the correct unit has the role "active" or "standby".
If a failover has occured, the check will report a WARNING status.
If an unknown status is encountered (other than 9 or 10 in the status OIDs)
it will go to UNKNOWN.
The check is not tested against un-clustered ASA devices.
No item is generated.
The check detects ASA devices and saves the current cluster role on inventory.