RMAN Recovery Catalog Database creation

SQL> CONNECT SYS/password@catdb AS SYSDBA
SQL> CREATE USER catowner IDENTIFIED BY oracle
2 DEFAULT TABLESPACE cattbs
3 QUOTA UNLIMITED ON cattbs;
SQL> GRANT recovery_catalog_owner TO catowner;
SQL> EXIT

RMAN> CONNECT CATALOG catowner/password@catdb
RMAN> CREATE CATALOG;

RMAN> CONNECT TARGET SYS/password@prod1
RMAN> REGISTER DATABASE; ---this will sync all already existing RMAN data in Target db's control files with the catalog database
RMAN> EXIT