This figure shows two nodes in a hardware cluster. Node 1 is the active node, and node 2 is the standby node. These nodes can access a shared storage that contains the Oracle home for the Oracle Internet Directory and Oracle Directory Integration and Provisioning components. During normal runtime, node 1 mounts the shared storage and runs these components. The standby node, node 2, does not run these components during normal runtime.

Clients use a virtual hostname to access node 1.

On failover, the standby node mounts the shared storage and runs the Oracle Internet Directory and Oracle Directory Integration and Provisioning components. The virtual hostname also changes to points to the standby node.

If you are running on Microsoft Windows, both nodes need to be running Microsoft Cluster Server and Oracle Fail Safe as well.