Oracle Database: steps to rename the cluster name (GI)
Step to rename the Cluster name:
1. Run as root “$GI_HOME/bin/crsrename cluster <new_clustername>” on any node in the cluster
2. Stop the stack on all nodes
crsctl stop crs
3. Start the stack on all nodes
crsctl start crs -wait
4. Review the new name
olsnodes -c