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Middleware Management with Oracle Enterprise Manager Grid Control 10g R5 by Debu Panda, Arvind Maheshwari

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Enterprise Manager Architecture

The Enterprise Manager product is built using Java technology and an Oracle database. The Enterprise Manager product runs on top of Oracle Application Server and uses an Oracle Database as its persistence store. Enterprise Manager has three main components:

  • Oracle Management Service (OMS)
  • Oracle Management Agent (OMA)
  • Oracle Management Repository (OMR)

For user interactions there is a centralized console that operates upon the Management Repository and uses services provided by the Management Server. This is a browser-based console.

In a typical setup, one management agent needs to be installed (on each host to be managed) that uploads data to the Management Server and that, in turn, persists the data in the repository. ...

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