Many thanks to:
Alan Davis Davis_at_tessco.com
Steven Hancock shancock_at_zk3.dec.com
Larry Clegg Larry_Clegg_at_intuit.com
for their swift responses.
The 'directIO' mount option mentioned in fstab is
apparently a documentation bug. The only current way
to bypass the UBC and access the disk directly is to
open files with the O_DIRECT flag as described in
'man 2 open'.
Terry.
Original question:
> TU64 V5.0
> ---------
>
> It mentions in the man pages for fstab, a mount-option for
> an advfs filesystem of 'directIO'.
> This option isnt mentioned in the man pages for 'mount',
> neither can I find any reference to it in the AdvFS Admin guide.
> If I mount an advfs filesystem with this option enabled, there are
> no complaints, but a subsequent listing the mounted filesystems
> doesnt show it as being mounted with the option enabled.
>
> To me, it implies that I/O to this filesystem will bypass the
> UBC and go direct to disk. Does anyone know for sure?
>
Received on Thu Aug 10 2000 - 18:18:27 NZST