Unlike other data replication mechanisms, such as Availability Suite feature of Oracle Solaris, Hitachi TrueCopy or Universal Replicator, and EMC SRDF, Oracle Data Guard is an integral part of Oracle database software. Consequently, you do not place Oracle database-server resource groups under Geographic Edition control as you do when you are using one of these host or storage-based data replication mechanisms.
You can add Oracle Data Guard broker configurations for databases that are being replicated by Oracle Data Guard to Geographic Edition without stopping the databases.
You must set the Oracle Data Guard broker property BystandersFollowRoleChange to NONE as soon as the broker configuration is created and preferably before the broker is added to the Geographic Edition configuration.