V11 SP8

Configuring an Oracle RAC Client for Unified Data Guard

An Oracle Data Guard configuration contains a production (primary) and standby database so that you can have high availability in the case of a disaster. The standby database becomes the primary database when the primary database has a planned or unplanned outage.

When you configure the Commvault software for Oracle Data Guard, the software discovers the instance role (primary or standby) and then picks the appropriate client storage policy or the appropriate instance storage policy for the data and the log backups. You can configure the software to run the database and the log backups on different instances that also have different roles.

You configure an Oracle RAC pseudo-client that contains all the primary and standby nodes. The nodes can be on the same or different data centers. By default, the software uses the pseudo-client storage policies.

You can configure storage policies for the physical clients that host the primary and standby servers. When the primary and standby servers are at different data centers and a failover occurs, the software cannot use the storage policies that you configured for the pseudo-client, because it needs access to a local MediaAgent. After a failover, the software uses the physical client storage policies and automatically reconfigures them to use the location aware MediaAgent.

Before You Begin

Make sure that you have the list of all the primary instances and the standby instances that are part of the configuration along wit the user credentials for each instance.


  1. Allow the Oracle RAC nodes to have the same database name.
  2. Specify the servers that run backups in an Oracle Data Guard configuration.
  3. Create a pseudo-client for Oracle RAC.

    Note: You must add all of the primary and standby databases to the pseudo-client.

  4. If your primary and standby databases are on different data centers, you must configure a storage policy for all clients that host the primary and standby databases. For information, see Configuring a Client Storage Policy for Unified Oracle Data Guard.