Hi, Don't mess around - go straight to support with this. Cheers, Phil On Thu, Dec 19, 2013 at 12:46 AM, De DBA <dedba@xxxxxxxxxx> wrote: > G'day, > > This is the problem disk - similar messages are issued for each disk in > the diskgroup. If I interpret this correctly, the disk metadata say that > the full 100G is used, but actually only 99,9GB is allocated? That is > closer to what we would expect: a query on X$KFFXP shows that this file has > 102343 AU mapped to files. > > Obviously this has to be repaired, but just as a sanity check: is it safe > to run "ALTER DISKGROUP DATA01 CHECK" to repair the disk inconsistencies? > What are the risks associated with doing this, if any? Do I have to take > more precautions than take a full DB backup.. > > -- > //www.freelists.org/webpage/oracle-l > > >