Assume that you maintain a production databases of the following releases:
You want to record RMAN repository data about these databases in a single recovery catalog database. According to Table B-2, you can use a single 11.1.0 recovery catalog database with a 11.1.0 catalog schema for all target databases. Ensure that the version of the RMAN client used to back up each target database meets the following requirements:
Use the 9.2.0 RMAN executable to back up the 9.2.0 database.
Use either the 9.2.0 or 10.2.0 RMAN executable to back up the 10.2.0 database.
Use any RMAN executable to back up the 11.1.0 database.