You may be preparing to configure both a primary site and a secondary site for disaster recovery.

Figure: Typical DR configuration illustrates a typical Active-Passive disaster recovery configuration.

In the example, the primary site consists of two nodes, Node1 and Node2. Similarly the secondary setup consists of two nodes, Node3 and Node4. Each site has a clustered setup with the nodes set up appropriately for failover within the site.

If the Enterprise Vault server on Node1 fails, Enterprise Vault comes online on node Node2 and begins servicing requests. From the user's perspective there might be a small delay as the backup node comes online, but the interruption in effective service is minimal. If there is a disaster at the primary site, Node3 at the secondary site takes over.

The cluster on the primary site has a shared disk group that is used to create the volumes required by Volume Replicator for setting up the Replicated Volume Group (RVG). The application data is stored on the volumes that are under the control of the RVG.