Your Interview Questions

How does one start the Oracle Intelligent Agent?

 

One needs to start an OIA (Oracle Intelligent Agent) process on all machines that will to be managed via OEM.
For OEM 9i and above:
agentctl start agent
agentctl stop agent

For OEM 2.1 and below:
lsnrctl dbsnmp_start
lsnrctl dbsnmp_status

On Windows NT, start the “OracleAgent” Service.
If the agent doesn’t want to start, ensure your environment variables are set correctly and delete the following files before trying again:
1) In $ORACLE_HOME/network/admin: snmp_ro.ora and snmp_rw.ora.
2) Also delete ALL files in $ORACLE_HOME/network/agent/.

Can one write scripts to send alert messages to the console?

Start the OEM console and create a new event. Select option “Enable Unsolicited Event”. Select test “Unsolicited Event”. When entering the parameters, enter values similar to these:
Event Name: /oracle/script/myalert
Object: *
Severity: *
Message: *
One can now write the script and invoke the oemevent command to send alerts to the console. Look at this example: oemevent /oracle/script/myalert DESTINATION alert “My custom error message” where DESTINATION is the same value as entered in the “Monitored Destinations” field when you’ve registered the event in the OEM Console.