Oracle Data Guard software is an application-based replication facility that maintains one or more standby databases as synchronized replicas of a production database. Geographic Edition supports the use of Oracle Data Guard replication where the Oracle database is running locally on an Oracle Solaris Cluster node or remotely on a separate system that is not running Oracle Solaris Cluster software. When the Oracle database runs locally, the HA for Oracle Database or Support for Oracle RAC data service must be used. When the database runs remotely, the HA for Oracle External Proxy data service must be configured on the local cluster for the remote database.
You add an Oracle Data Guard Broker configuration that is controlled by the Oracle Data Guard software to a protection group. The Geographic Edition framework creates a shadow server proxy resource group for each Oracle Data Guard Broker configuration. The shadow server proxy resource group “shadows” the database resource group to manage and monitor the Oracle databases that are under the control of Geographic Edition framework. For more information about Oracle Data Guard software, see the product documentation.