Oracle Database Appliance supports administrator-managed Oracle RAC Databases.
Oracle Real Application Clusters (Oracle RAC) provides technology that links two or more individual computers so that they function as one system. Oracle RAC deployed on Oracle Database Appliance enables each node to share access to a database. If one node fails or is taken offline, then the other node continues operating and the entire Oracle RAC database remains available.
Oracle Database Appliance currently supports only administrator-managed databases, where the database administrator allocates each instance of the database to a specific node in the cluster. Oracle Database Appliance does not support Policy-managed databases, where the database administrator defines the number of database instances required, but not the nodes where they run.
When you review the database resource for an administrator-managed database, you see a server pool defined with the same name as the Oracle Database. This server pool is part of a special Oracle-defined server pool, called the Generic server pool. The Generic server pool stores any server that is not in a top-level server pool and is not policy managed. Servers that host administrator-managed databases are statically assigned to the Generic server pool. When you add or remove an administrator-managed database by using either the Server Control (SRVCTL) utility, or by using Oracle Database Configuration Assistant (DBCA), Oracle RAC creates or removes the server pools that are members of Generic. Oracle RAC manages the Generic server pool to support administrator-managed databases. You cannot use SRVCTL or Oracle Clusterware Control (CRSCTL) utility commands to modify the Generic server pool.