Replace a Unit in Threat Defense High Availability Pair

To replace a failed unit in the threat defense high availability pair using a backup file, see Restoring Management Centers and Managed Devices in the Cisco Secure Firewall Management Center Administration Guide.

If you do not have a backup of the failed device, you must break high availability. Then, register the replacement device to the Secure Firewall Management Center and reestablish high availability. The process varies depending on whether the device is primary or secondary:

• Replace a Primary Threat Defense HA Unit with no Backup

• Replace a Secondary Threat Defense HA Unit with no Backup