On 02/18/2007 06:49:37 PM, fairlie rego wrote: > Malden, > > I think this could be the same issue discussed in ML note 361173.1 > Asm Diskgroup success Mount And Umount messages in alert.log during Rman > Backup > > Thanks > Fairlie > Thanks, Fairlie, I believe that you're right. Hmmm, whenever the last file on the disk group is closed, Oracle dismounts the diskgroup? Am I the only one who sees a potential performance problem in this behavior? I hope that my newly created standby will be able to keep up with the demand. -- Mladen Gogala http://www.mladen-gogala.com -- //www.freelists.org/webpage/oracle-l