If your using rman duplicate, as long as it opens successfully then your ok. I've never had any issues. As a precaution you could always check the alert log as others have suggested.... On Fri, Jun 26, 2009 at 7:34 AM, Jeffrey Beckstrom <JBECKSTROM@xxxxxxxxx>wrote: > After performing a clone of a database, do you do any extra steps to > ensure that "all of the data is there"? We usually just ensure that the > clone processed the most current production archive log and opened > successfully. > >