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Re: Oracle on ext3?



Hi,

On Thu, Jul 11, 2002 at 02:28:30PM +0200, Branko F. Gracner wrote:
> > You probably want data=writeback, since Oracle is already controlling
> > the flushing of data to disk, and data integrity related to that.
 
> does oracle call fsync(2) to flush filesystem buffers on disk?

No, it uses O_SYNC, I think (which is equivalent but faster).

> ... i don't
> know, but i'm really corious about this one. i stil prefer running my oracle
> servers with data=journal.

data=journal won't help in the slightest in this case.  ext3 still
performs all of its writes asynchronously unless the application
explicitly requests sync IO.

Cheers,
 Stephen





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