Re: Oracle8 on Linux ok?

From: Michael Hasenstein <mha_at_suse.de>
Date: Thu, 15 Apr 1999 09:48:02 +0200
Message-ID: <371599B2.F865E07E@suse.de>

Dmitri Blinov wrote:
>
> > >I would never choose linux for a mission critical app.
> >
> > Any experience ? Give facts !
>
> It was found that Linux does not have raw devices. It means Oracle
> server can not guarntee that commited transactions will ever be
> written on disk.

No, you don't need raw devices to guarantee this. But the issue below is a show stopper, agreed.

By the way, see the other thread "RAW partitions on Linux" in this newsgroup, there's a patch from Stephen Tweedie for unbuffered character raw devices, and it's not even big and has a recent time stamp (for 2.2.4 (can also be applied to 2.2.5, 03/26/99).

> Futhermore, it was found that Oracle server does
> not use O_SYNC flag when opening redo logs. Of cource, it's not
> Linux problem, but initial statement about mission critical app
> have serious argument.

--
Michael Hasenstein
http://www.csn.tu-chemnitz.de/~mha/
Private Pilot (ASEL) since 1998 Received on Thu Apr 15 1999 - 02:48:02 CDT