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Re: [suse-oracle] Which file system for Oracle on SuSE?

Edzard Pasma



Are you talking about a filesystem just for the Oracle software or also for
the database?

For the database files none of Reiser FS or Ext3 are appropriate, as these
offer no option to bypass the file system buffers. This option is not yet in
any Linux file system as far as I know. It is in JFS for HP/UX and is
something like "convosync=direct,mincache=direct".

Anyway I would use raw devices if speed is more important than simplicity.
Raw devices can be either partitions on the disk or, preferably, logical
volumes. The last is described in a white paper at www.suse.com/oracle: "The
Logical Volume Manager (incl. raw I/O tips)".

Bye, Edzard Pasma

PS: I may change from opinion after learning more about Oracle 10G ASM.

----- Original Message -----
From: Schmidt, Thomas <Thomas.Schmidt@(protected)>
To: <suse-oracle@(protected)>
Sent: Thursday, June 10, 2004 4:16 PM
Subject: AW: [suse-oracle] Which file system for Oracle on SuSE?


> ext3 is faster during

Is the difference significant or an academic issue?



> Thomas Schmidt
> Dräger Medical Deutschland GmbH
> Office Lübeck
> Moislinger Allee 70a
> D - 23558 Lübeck
> * +49 (0) 451 882-4296
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> Home office: +49 (0) 4321 6 30 86
> thomas.schmidt@(protected)
> http://www.draeger.com
> -----Ursprüngliche Nachricht-----
> Von: Martin Wunderli [SMTP:Martin.Wunderli@(protected)]
> Gesendet am: Donnerstag, 10. Juni 2004 11:19
> An: Thomas.Strelow@(protected)
> Cc: suse-oracle@(protected)
> Betreff: RE: [suse-oracle] Which file system for Oracle on SuSE?
> Hi,
> Until SLES-8 SP2a, performance of ReiserFS was better than ext3. However,
starting with SLES-8 SP3 (same with SuSE Prof 9.0, for example), ext3 is
faster during ops like database create, insert, updates etc. (reproduced on
several SCSI and IDE plattforms).
> So we changed our recommendation from ReiserFS to ext3.
> Cheers
> Martin

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