About full catalog replication
In full catalog replication, all parts of the catalog are replicated to the secondary master server. In full catalog replication, the tape information from the production domain, the media pool, and other assignments is retained. Backups can be run in the DR domain using the same policies and tapes that are used at the production domain. The replication can be reversed, which simplifies a transition back to the production domain. However, replicating the relational database components implies that the device configuration and the server configuration of the production domain is replicated to the DR domain. This configuration information cannot be used and the configuration in the DR domain must be discovered after recovery.
Full catalog replication is not recommended for cross domain replication.