clustered DB and RAC

[yxez]

Thanks,

So its a valid config to have two separate database on a clustered set-up
oracle_home.

I ask the HW engineer and he said that the setup was like what u said. If one node is down then the disk on that node will be transferred to the active node, with some intervention and the ORACLE_HOME of the active node will adopt it, The two nodes are
clustered but not a full-pledged one. Somewhat like half-done HACMP design. The engineer doesnt know oracle
so he cant comment on the clustered db. I ask the SAP dev team and they
said they just run their out-of-the-box db installer and cant comment on
the what to do wth the clustering. They thought also that they have stand alone PROD and DEV set-up too.
But with this clustered ORACLE_HOME, i dont know how to patch the other
home w/o encountering the "Theres no patch need to be applied" error. I
even shutdown the DEV server hoping the PROD will not see that cluster,
but to no avail. Do you have any idea how to turn this cluster off(at least on the oracle side, not the HW side), so that
i can patch the PROD server?

Thanks again