Hi,

I should have just thought about what the chfs command does. All I
needed to do was edit the /etc/filesystems file and remove the
options=cio from the file system.

I have also found a great white paper on the subject for anyone
interested. search for wpAIXcio052703 on the IBM web site.

Thanks



"Andreas Schulze" <b79xan@gmx.de> wrote in message news:<c0vrer$9s72@news-1.bank.dresdner.net>...
> "Peter" <pcarter@telkomsa.net> schrieb im Newsbeitrag
> news:c2700c2e.0402180541.69032976@posting.google.c om...
> > Help!
> >
> > I am having trouble with the new 630 system we have installed. The
> > disks have been set up using LVM with 3 disks mirrored and maximum
> > spread accross the disks.
> >
> > We are running oracle 8.0.5
> >
> > We are getting excessive Waiting IO figures although the disk io shows
> > that there is very little activity on the disks.
> >
> > I was told by the IBM IT Specialist to run the command
> >
> > chfs -a options=cio <mount point>
> >
> > I can find no reference to this command. The system is slower since
> > running it. I wish to switch the option off bit cannot find out how to
> > do so.
> >
> > Any help?
> >
> > Thanks in advance.
>
> Hi Peter,
> nice trick to supply you with undocumented options without telling you what
> for that should be and how to get rid of it ;-)
>
> # chfs -a options=rw <mount point>
>
> HTH,
> Andreas