How does one stop and start the OMS?

Use the following commands to stop and start the OMS (Oracle Management Server):

Oracle 10g:

DBConsole:

emctl start dbconsole
emctl stop dbconsole

Grid Control:

emctl start oms
emctl stop oms

Oracle 9i:

oemctl start  oms
oemctl status oms sysman/oem_temp
oemctl stop   oms sysman/oem_temp

Oracle 8i:

Use command oemctrl instead of oemctl for Oracle 8i and below.

NOTE:Windows NT/2000 users can just stop and start the required services. The default OEM administrator is "sysman" with a password of "oem_temp".