This figure shows a two-node Oracle ECM cluster, which includes an Oracle Universal Content Management (UCM) cluster, Oracle Universal Records Management (URM) cluster, and Oracle Imaging and Process Management (I/PM) cluster.

In this figure, requests from the Internet are handled by a load balancer in the web tier, which routes each request to either WEBHOST1 or WEBHOST2 in the web tier. Oracle HTTP Server is installed on WEBHOST1 and WEBHOST2.

WCCHOST1 and WCCHOST2 are the application tier hosts. The Oracle WebLogic Administration Server is installed on WCCHOST1 and WCCHOST2. An Oracle UCM cluster (named Cluster_UCM) is set up on WCCHOST1 and WCCHOST2, with managed server WLS_UCM1 running on WCCHOST1 and managed server WLS_ UCM2 running on WCCHOST2.

An Oracle URM cluster (named Cluster_URM) is set up on WCCHOST1 and WCCHOST2, with managed server WLS_URM1 running on WCCHOST1 and managed server WLS_URM2 running on WCCHOST2.

An Oracle I/PM cluster (named Cluster_IPM) is set up on WCCHOST1 and WCCHOST2, with managed server WLS_IPM1 running on WCCHOST1 and managed server WLS_IPM2 running on WCCHOST2.

The Cluster_UCM box has an arrow labeled "To IBR" that points to the right side of the figure (the Inbound Refinery being pointed to is not shown in the figure).

The Cluster_URM box has an arrow labeled "To IBR" that points to the right side of the figure (the Inbound Refinery being pointed to is not shown in the figure).

In the data tier, the WCC configuration for the managed servers is stored on the WCC Config Files Shared Disk. An Oracle RAC database in the data tier is the highly available WCC repository. There are arrows from WCCHOST1 and WCCHOST2 to the WCC Config Files Shared Disk. There are arrows from WCCHOST1 and WCCHOST2 to the Oracle RAC database.