Add/remove instance using SRVCTL

Remove instance using SRVCTL commands

--SYNTAX FOR REMOVING INSTANCE
srvctl remove instance -d DB_UNIQUE_NAME -i INSTANCE_NAME
e.g
srvctl remove instance -d PRODB - I PRODB1

Add instance using SRVCTL commands

--SYNTAX FOR ADDING INSTANCE
srvctl add instance –d db_unique_name –i inst_name -n node_name
e.g
srvctl add instance -d PRODB - i PRODB1 -n rhost1