Re: 11.2 CRS with 10g Database

nothing to add really to Tim's reply. Just one more: you might have to "pin" your nodes to run pre 11.2 databases on 11.2 CRS. You can use the olsnodes -s -t command to check if they are. When upgrading all nodes are pinned (Oracle obviously knows that there are pre 11.2 databases) automatically, but when adding a < 11.2 RDBMS home they won't be.

See http://docs.oracle.com/cd/E11882_01/install.112/e24616/postinst.htm section 5.3 as well.

Hope this helps,

Martin

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