Starting and Stopping Oracle Enterprise Manager

The following sections describe how to stop and start all the Enterprise Manager components that are installed by the Oracle Enterprise Manager console installation procedure.

You can use these procedure to start all the framework components after a system reboot or to shutdown all the components before bringing the system down for system maintenance.

The following procedures are covered under this section:

Starting Enterprise Manager and All Its Components

The following procedure summarizes the steps required to start all the components of Enterprise Manager. For example, use this procedure if you have restarted the host computer and all the components of Enterprise Manager have been installed on that host.

To start all Enterprise Manager components on a host, use the following procedure:

If your Oracle Management Repository resides on the host, change directory to the Oracle Home for the database where you installed the Management Repository and start the database and the Net Listener for the database:
1. Set the ORACLE_HOME environment variable to the Management Repository database home directory.
2. Set the ORACLE_SID environment variable to the Management Repository database SID (default is asdb).
3. Start the Net Listener:
```
$PROMPT> $ORACLE_HOME/bin/lsnrctl start
```
4. Start the Management Repository database instance:
```
ORACLE_HOME/bin/sqlplus /nolog
SQL> connect SYS as SYSDBA
SQL> startup
SQL> quit
```
Start the Oracle Management Service:
```
$PROMPT> OMS_HOME/bin/emctl start oms
```
Change directory to the home directory for the Oracle Management Agent and start the Management Agent:
```
$PROMPT> AGENT_HOME/bin/emctl start agent
```
Note:

Be sure to run the emctl start agent command in the Oracle Management Agent home directory and not in the Management Service home directory.

Stopping Enterprise Manager and All Its Components

The following procedure summarizes the steps required to stop all the components of Enterprise Manager. For example, use this procedure if you have installed all the components of Enterprise Manager on the same host you want to shut down or restart the host computer.

To stop all Enterprise Manager components on a host, use the following procedure:

Stop the Oracle Management Service:

$PROMPT> $ORACLE_HOME/bin/emctl stop oms -all

Change directory to the home directory for the Oracle Management Agent and stop the Management Agent:
```
$PROMPT> AGENT_HOME/bin/emctl stop agent
```
Note:

Be sure to run the emctl stop agent command in the Oracle Management Agent home directory and not in the Oracle Management Service home directory.
If your Oracle Management Repository resides on the same host, follow these steps:
1. Set the ORACLE_HOME environment variable to the Management Repository database home directory.
2. Set the ORACLE_SID environment variable to the Management Repository database SID (default is asdb).
3. Stop the database instance:
```
$PROMPT> ORACLE_HOME/bin/sqlplus /nolog
SQL> connect SYS as SYSDBA
SQL> shutdown
SQL> quit
```
4. Stop the Net Listener:
```
$PROMPT> $ORACLE_HOME/bin/lsnrctl stop
```