OCP: Oracle 10g Administration II Study Guide: Exam 1Z0-043

11.1. An Overview of the Database Resource Manager

The Database Resource Manager (DRM) offers a component-based approach to resource allocation management. By defining distinct, independent components representing the DRM elements, the result is an extremely flexible and easy-to-use system.

There are three main elements that comprise the DRM:

• Resource consumer groups

• Resource plans

• Resource plan directives

DRM allocates resources among resource consumer groups based on a resource plan. A resource plan consists of resource plan directives that specify how resources should be distributed among the groups. Resource consumer groups are categories to which user sessions can be assigned. These groups can then be allocated resources through plan directives. ...