As a DBA we work on some critical and huge databases we may encounter with this situation where we connect to our RMAN catalog database and while running the script we may come across with below error.
ERROR:
RMAN-06429: TARGET database is not compatible with this version of RMAN
RMAN-06618: RMAN client and database release mismatch; indicated database release is 12.1.0.2
Solution: Upgrade the catalog database as below.
1. Connect to catalog database:
rman target sys/ora@TESTUSER catalog cat_user/pwd@TESTDB2. Upgrade catalog:
RMAN> upgrade catalog;recovery catalog owner is RMAN_CAT_TEST
enter UPGRADE CATALOG command again to confirm catalog upgrade
RMAN> upgrade catalog;