Pawel, What things have your Storage / Linux admins looked at ? Also, from oracle's standpoint, what elements have you already looked at / already ruled out (if any) ? Please share your inputs. -Rajeev 2009/5/15 Paweł Kotlarz <pkotla@xxxxxx>: > Hello all. > > I can isolate the problem to specific disks using iostat. These disks > are the same on a day the problem occurs but they are different on > another occurrance of the problem. Storage / Linux admins do not see any > problem on their side. > Thanks. > Pawel Kotlarz -- //www.freelists.org/webpage/oracle-l