The configuration changes performed on the primary ACS server are replicated to all the secondary ACS servers in the deployment. At a time, you can have only one ACS server as the primary server.
So if you add a new device as primary then you loose all the configuration.
ACS provides you the option to back up the primary and secondary instances at any time apart from the regular scheduled backups. For a primary instance, you can back up the following:
ACS configuration data only
ACS configuration data and ADE-OS configuration data
If you want new as primary then restore the backup
Under normal circumstances, each configuration change is propagated to all secondary instances. Unlike ACS 4.x where full replication was performed, in ACS 5.3, only the specific changes are propagated. As configuration changes are performed, the administrator can monitor (on the Distributed System Management page) the status of the replication and the last replication ID to ensure the secondary server is up to date.
If configuration changes are not being replicated as expected, the administrator can request a full replication to the server. When you request full replication, the full set of configuration data is transferred to the secondary server to ensure the configuration data on the secondary server is re synchronized. The primary ACS transmits the compressed, encrypted copy of its database components to the secondary ACS.
DocumentationCode download linksGoalRequirementLimitationsSupported ISR and UCS-E ModelSupported ISRG2 and UCS-E Blades:Supported ISR4K and UCS-E Blades:Step by Step ConfigurationConfigure one of the connectivity options to access the Cisco IMC from the n...
Firepower Threat Defense (NGFWv) on UCS E-series - Transparent Mode in HA
DocumentationCode download linksGoalRequirementLimitationsSupported ISR and UCS-E ModelSupported ISRG2 and UCS-E Blades:Supported ISR4K and UCS-E Blades:Step by Step ConfigurationCo...
I am currently unable to specify "crypto keyring" command when configuring VPN connection on my cisco 2901 router.
The following licenses have been activated on my router :