: Ensure the GI stack and all databases are stopped on all nodes in the cluster.
✅ ✅ ORACLE_HOME and PATH set correctly ✅ GI and database services can be stopped (planned downtime) ✅ Backups of Oracle home and database ✅ Patch README reviewed for special instructions ✅ Clusterware running (for RAC) – opatchauto checks cluster state ✅ No other opatch processes running
Manually bring down all databases and the Oracle Grid Infrastructure stack on all nodes .
ps -ef | grep opatch