Be aware you should not backup Oracle with AOFO you should either use the Oracle Agent (which uses RMAN) or use RMAN to dump Oracle to files and back those up. Otherwise you databases may be backed up in an inconsistent way - either way your Oracle dba will need to be involved to configure it.
Also if you are running 9.1 then I am wondering what version of Oracle you are running as the 12.5 Oracle Agent may not support an older version - as such make sure you check the Software Compatibility List