Oracle Tips by Burleson

Oracle10g Grid Computing with RAC
Chapter 8 - RAC Administration

Using Enterprise Manager

This section will explain the administration of RAC system using Enterprise Manager (EM). The EM, either with the help of a management server or as a stand-alone component, can manage the complete RAC system environment. The OEM tool is completely cluster-aware. When you connect to a RAC system after discovery by a management server, it would enable you to manage the RAC system, the database, and its instances as a single system.

The EM management server can be located on any of the machines in the network and the EM component/console can be launched from any of the machines in the network. When you connect to the RAC system by using the management server, you have additional facilities such as the event manager and job scheduler to manage, compared to the stand-alone EM component.

The Enterprise Manager Console provides a central point of control for the Oracle environment. Use the EM to discover the nodes on which the cluster database resides. Once discovery is completed, you can administer all of the databases and their instances and listeners that are associated with the nodes discovered by Oracle Enterprise Manager.