Oracle SES in Fusion Applications: This diagram shows the Fusion Middleware Common Domain containing the Administration Server and these clusters: Oracle SES cluster, Enterprise Scheduler cluster, and Fusion Applications clusters. The Oracle SES cluster contains two managed servers named search_server1 and search_server2. Outside the Common Domain is the Oracle Database 11.2.0.2 Transactional or Oracle RAC metadata repository. The clusters connect to this database instance.