Hi, I mean logical volume metadata: device name and size, not the content of the filesystem. I believe the snapshot is a read only copy of the file system's content. If you loose a disk (or a group of disks) that contains one (or more) Oracle ADVM volumes (the devices you see in /dev/asm/), you'll have to restore their definitions before restoring the filesystem structures, or I am missing something? Regards Dimitre On Wed, May 9, 2012 at 4:53 PM, Prashant Kumar <oracleideas.wordpress@xxxxxxxxx> wrote: > I suggest you look at acfs snapshot , this allows you to restore metadata > i.e. structure as well as data. -- //www.freelists.org/webpage/oracle-l