Re: VXFS an create datafile

Sybrand Bakker a écrit :
> On 13 May 2005 02:58:05 -0700, ylecornec_at_hotmail.com wrote:
>
> >discovered_direct_io seems to have a very strange behavior...has
> >someone already noticed this behaviour, and understand what happens?
>
> Standard Vxfs doesn't support async IO. If you have async_io enabled
> in the database, Oracle will issue KAIO calls. They will fail and
> Oracle will automatically fall back into issuing an ordinary pwrite.
> This is the behavior you are observing.
> You need to find a bunch of $$ and buy Veritas Database Edition to
> resolve this, or disable async io.
>
>
> --
> Sybrand Bakker, Senior Oracle DBA

Thank you,
but my question is about the double write: why do we have the IO written 2 times??? I've set disk_asynch_io to false: its the same behavior as with the parameter set to true. Received on Tue May 17 2005 - 04:01:07 CDT