After configuring the 1+1 High Availability cluster, the system displays most configurable settings in EM as unavailable for the Backup server.

The 1+1 High Availability cluster requires that you make most of the changes using the Primary server EM. The system replicates the changes you make on the Primary server to the Backup server so that you only have to change the settings in one place. Items that are server specific, for example, server designation, require you to use the Backup server EM.

Configuration replication does not replicate settings between different clusters.

During cluster upgrades, replication only occurs between media servers with the same release of software.