Why does the NOAC attribute need to be set on NFS mounted RAC Binaries?
The noac attribute is required because the installer determines sharedness by creating a file and checking for that file’s existance on remote node. If the noac attribute is not enabled then this test will incorrectly fail. This will confuse installer and opatch. Some other minor issues issues with spfile in the default $ORACLE_HOME/dbs will definitely be affected.
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