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Oracle Processes on a Unix Server

Oracle Processes on a Unix Server

Oracle Processes on a Unix Server

This is a follow-up to my previous question "Testing to see if Oracle Instance is up on a Remote Server".   

What are the minimum processes that you should see if you do a ps -ef command on a Unix server to signify that Oracle is up and running?   I know of the following:


I am not sure if that is all of them or if any could be down but Oracle still up.

Thanks for any ideas...

RE: Oracle Processes on a Unix Server

The mandatory processes are dbwr, lgwr, smon, pmon.  The instance will stay up if the others go down.  However, if Listener isn't up, you probably won't be able to connect to the instance.

RE: Oracle Processes on a Unix Server

Thanks for the info.   

Terry M. Hoey

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