[oracle@rone1 ~]$ srvctl config database -d roneDatabase unique name: roneDatabase name: roneOracle home: /u01/app/oracle/product/11.2.0/dbhome_1Oracle user: oracleSpfile: +DATA/rone/spfilerone.oraDomain: Start options: openStop options: immediateDatabase role: PRIMARYManagement policy: AUTOMATICServer pools: roneDatabase instances: rone_1,rone_2Disk Groups: DATA,CRSMount point paths: Services: bboneType: RACDatabase is administrator managed[oracle@rone1 ~]$ srvctl status database -d roneInstance rone_1 is running on node rone1Instance rone_2 is running on node rone2

[oracle@rone2 trace]$ srvctl stop instance -d rone -n rone2

[oracle@rone1 ~]$ srvctl remove instance -d rone -i rone_2Remove instance from the database rone? (y/[n]) y

[oracle@rone1 ~]$ srvctl convert database -d rone -c raconenode -w 30 -i rone

[oracle@rone1 ~]$ srvctl config database -d roneDatabase unique name: roneDatabase name: roneOracle home: /u01/app/oracle/product/11.2.0/dbhome_1Oracle user: oracleSpfile: +DATA/rone/spfilerone.oraDomain: Start options: openStop options: immediateDatabase role: PRIMARYManagement policy: AUTOMATICServer pools: roneDatabase instances: Disk Groups: DATA,CRSMount point paths: Services: bboneType: RACOneNodeOnline relocation timeout: 30Instance name prefix: roneCandidate servers: rone1Database is administrator managed[oracle@rone1 ~]$ srvctl status  database -d roneInstance rone_1 is running on node rone1Online relocation: INACTIVE

srvctl convert database -d <db_unique_name> -c RACONENODE -i <inst prefix> -w <timeout>