Hello list, Is there are way to see through oracle itself which filesystemio_options it is really using, if the parameter is set to 'setall'. Something that shows me which options are used when opening a file? And to those who know JFS2: I have trussed a session, it opened a file with asynch_nowait, is that what you would expect from a filesystem mounted cio? Regards, uwe -- //www.freelists.org/webpage/oracle-l