Read *Note:139272.1* and you can see as LSC already pointed out on HP-UX, aio is *only* possible on a raw device. Put in another way, aio *cannot* be used on a filesystem. Quite clear On 8/2/07, edwin devadanam <edwin_kodamala@xxxxxxxxx> wrote: > > Cheng, > > the raw files system is for solaris server. > > We are using normal Filesystem. > Already Async io is set in couple of other HP-UX servers........ > > on what basis can we change disk_asynch_io = FALSE to > disk_asynch_io = TRUE (PLease see below information for clarity of my > requirement) > > Any docs pertaining to disk_asynch_io = TRUE and its Advantages > > Thanks, > Edwin.K > > *LS Cheng <exriscer@xxxxxxxxx>* wrote: > > You need to setup raw devices to use AIO in HP-UX. No chance if you are > using vxfs. > > Thanks > > -- > LSC > > On 8/2/07, edwin devadanam < edwin_kodamala@xxxxxxxxx> wrote: > > > > Hi > > > > We have this setup > > db_writer_processes = 4 disk_asynch_io = false > > > > I have doubts whether i can set the below on.... > > please suggest advantages and disadvantages of below setting.......on > > HP-UX > > disk_asynch_io = TRUE > > tape_asynch_io = TRUE > > > > am unclear mainly about > > disk_asynch_io,db_writer_processes,DBWR_IO_SLAVES > > > > Any help would be appreciated. > > > > Regards, > > Edwin.K > > ------------------------------ > > Shape Yahoo! in your own image. Join our Network Research Panel > > today!<http://us.rd.yahoo.com/evt=48517/*http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7> > > > > > ------------------------------ > Choose the right car based on your needs. Check out Yahoo! Autos new Car > Finder > tool.<http://us.rd.yahoo.com/evt=48518/*http://autos.yahoo.com/carfinder/;_ylc=X3oDMTE3NWsyMDd2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDY2FyLWZpbmRlcg--+> > >