While you investigate the issue, you can switch your backups to not connect to the catalog until the backup is complete, then connect to the catalog just to do a resync once the backup is done. On Wed, Mar 2, 2011 at 1:11 PM, Imtiaz Merchant <merchanti@xxxxxxxxxxx>wrote: > I just upgraded an RMAN catalog yesterday from 10.2 to 11.2 and the > backups were 20% slower overnight, so am suspecting the catalog version for > now. I updated the stats as well, but doesn't provide me with a good > estimate. I can do a restore of the database before the upgrade, but just > wanted to see if I could do it without a restore. > > Anybody have any experience having to downgrade a newer version RMAN > catalog to a lower version (ex. from 11.2 to 10.2, etc). Any ideas, how to > do that? > >