7.11.3 Shared Server Configuration for an Oracle RAC Database
Standalone Oracle databases perform load balancing by distributing connections among the shared server dispatcher processes.
By default, Oracle Database Configuration Assistant (DBCA) configures your Oracle RAC database with dedicated servers, not shared servers. However, if you select the shared server option when using DBCA, then DBCA configures shared servers. Oracle RAC uses both dedicated and shared server processing when shared servers are configured.
See Also:
Oracle Database Net Services Administrator's Guide for more information about shared server configurations