Chen - I have been using that method for several years. I do not believe if there is a corruption it will be picked up, unless it causes the backup to fail. I periodically run validate against the copy just to make sure the files being written to tape are not corrupt. Bill On Nov 29, 2012, at 12:10 AM, Chen Zhou wrote: > Hi, > We are considering to use RMAN image copy as our backup method, then apply > the daily incrementals to update the image copy. Has anyone done that > before? If the image copy is corrupted, will it be picked up when the > daily incremental is applied? Or we need to run validate periodically on > the copy? > Thank you, > Chen > > -- > //www.freelists.org/webpage/oracle-l > > > -- //www.freelists.org/webpage/oracle-l