- The Oracle Management Repository (OMR)
- The Oracle Management Service (OMS)
- The Oracle Management Agent (OMA or agent) with target specific plug-ins
- The Cloud Control Console
To start the whole enterprise manager cloud control frame work, follow the steps below:
- Startup the repository database listener: lnsrctl start
- Startup the repository database: $ORACLE_HOME/bin/sqlplus / as sysdba -> Startup
- Start the OMS including OHS and WebLogic Managed Server: emctl start oms
- Start the AGENT on OMS repository host: emctl start agent
- Start the AGENT on the managed/target servers: emctl start agent
To stop the enterprise manager cloud control, perform the above steps (bottom to top)
Type of Credentials and Three levels of access
Named Credentials: You can store credential username/password, public key-private key pair. It's used when performing operation like system management tasks (running jobs, patching, changing password, etc)
Preferred Credentials: You can store access of managed targets login credentials in the Management Repository to simplify the access
Default Credentials: You can set a particular target type and is available for all the targets of the target type.
There are three level of access: View access, Edit access (change the credentials, name/password), and Full access (complete access including the ability to delete the named credential)
Enterprise Manager Database Express: It's a replacement of EM Database Control and is created via DBCA with XMLDB components installed. The homepage represents an overall view of the database instance status and activity. The EM Database Express is built on the Common Reporting Framework in the database and is available when the database is opened.
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