ORA-59121
Enabling Oracle RAC two-stage rolling update string failed because it is not present in the environment.
Cause
The given Oracle RAC two-stage rolling update is not present in the environment.
Action
Run 'ORACLE_HOME/bin/rrputil -l' and ensure that the bug that needs to be enabled is present in that list. If not, check the patch inventory and ensure that the patch contains the bug that was applied in the environment.