How is Oracle Enterprise Manager integrated with the Oracle RAC 11g Release 2 stack?
Oracle Enterprise Manager (EM) is available in 2 versions: Oracle EM Grid Control and Oracle EM Database Control. Oracle EM Grid Control underlies a different release cycle than the Oracle Database, while the new version of Oracle EM Database Control is available with every new database release. At the time of writing, Oracle EM Grid Control is available in version 10.2.0.5. This version does not support new features of the Oracle Database 11g Release 2. Oracle 11g Rel. 2 Database, however, can be managed with Oracle EM in the current version with some restrictions (no 11.2 feature support). With Oracle Database and Grid Infrastructure 11g Release 2, Oracle EM Database Control is now able to manage the full Oracle RAC 11g Release 2 stack. This includes: Oracle RAC Databases, Oracle Clusterware, and Oracle Automatic Storage Management. The new feature that needs to be noted here is the full management of Oracle Clusterware 11g Release 2 with Oracle EM Database Control 11g Release 2.