4-16
Cisco NAC Appliance Hardware Installation Guide
OL-20326-01
Chapter 4 Configuring High Availability (HA)
Installing a Clean Access Manager High Availability Pair
Figure 4-8
Standby Web Admin Console Example—CCA Manager > Network Page
Complete the Configuration
Verify settings in the
Failover
pages for both the active and standby CAMs. The high availability
configuration is now complete.
Upgrading an Existing Failover Pair
For instructions on how to upgrade an existing failover pair to a new Cisco NAC Appliance release, see
“Upgrading High Availability Pairs” in the
Release Notes for Cisco NAC Appliance
corresponding to
your latest Cisco NAC Appliance release version.
Failing Over an HA-CAM Pair
Warning
To prevent any possible data loss during database synchronization, always make sure the standby
CAM is up and running before failing over the active CAM.
To failover an HA-CAM pair, SSH to the active machine in the pair and perform one of the following
commands:
•
shutdown
, or
•
reboot
, or
•
service perfigo stop
This stops all services on the active machine. When heartbeat fails, the standby machine will assume the
active role. Perform
service perfigo start
to restart services on the stopped machine. This should
cause the stopped machine to assume the standby role.
