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.

ECMHOST1 and ECMHOST2 are the application tier hosts. The Oracle WebLogic Administration Server is installed on ECMHOST1 and ECMHOST2. An Oracle UCM cluster (named Cluster_UCM) is set up on ECMHOST1 and ECMHOST2, with managed server WLS_UCM1 running on ECMHOST1 and managed server WLS_UCM2 running on ECMHOST2. An Oracle URM cluster (named Cluster_URM) is set up on ECMHOST1 and ECMHOST2, with managed server WLS_URM1 running on ECMHOST1 and managed server WLS_URM2 running on ECMHOST2. An Oracle I/PM cluster (named Cluster_IPM) is set up on ECMHOST1 and ECMHOST2, with managed server WLS_IPM1 running on ECMHOST1 and managed server WLS_IPM2 running on ECMHOST2.

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 ECM configuration for the managed servers is stored on the ECM Config Files Shared Disk. An Oracle RAC database in the data tier is the highly available ECM repository. There are arrows from ECMHOST1 and ECMHOST2 to the ECM Config Files Shared Disk. There are arrows from ECMHOST1 and ECMHOST2 to the Oracle RAC database.