From: "Ragnar Kjørstad" <kernel@ragnark.vestdata.no>
To: "Peter T. Breuer" <ptb@it.uc3m.es>
Cc: Alexander Viro <viro@math.psu.edu>,
Xavier Bestel <xavier.bestel@free.fr>,
Anton Altaparmakov <aia21@cantab.net>,
david.lang@digitalinsight.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: (fwd) Re: [RFC] mount flag "direct"
Date: Wed, 4 Sep 2002 14:49:09 +0200 [thread overview]
Message-ID: <20020904144909.Z6228@vestdata.no> (raw)
In-Reply-To: <200209040902.g84927L29020@oboe.it.uc3m.es>; from ptb@it.uc3m.es on Wed, Sep 04, 2002 at 11:02:07AM +0200
On Wed, Sep 04, 2002 at 11:02:07AM +0200, Peter T. Breuer wrote:
> > There is more to coherency and preserving fs structure than "don't cache
>
> Sure. So what? What's wrong with a O_DIRDIRECT flag that makes all
> opens retrace the path from the root fs _on disk_ instead of from the
> directory cache?
Did you read Antons post about this?
> I suggest that changing FS structure is an operation that is so
> relatively rare in the projected environment (in which gigabytes of
> /data/ are streaming through every second) that you can make them as
> expensive as you like and nobody will notice.
Why do you want a filesystem if you're not going to use any filesystem
operations? If all you want to do is to split your shared device into
multipe (static) logical units use a logical volume manager.
If you _do_ need a filesystem, use something like gfs. Have you looked
at it at all?
--
Ragnar Kjørstad
Big Storage
next prev parent reply other threads:[~2002-09-04 12:45 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-03 21:48 (fwd) Re: [RFC] mount flag "direct" Peter T. Breuer
2002-09-03 22:19 ` Anton Altaparmakov
2002-09-03 22:42 ` Peter T. Breuer
2002-09-03 22:52 ` Xavier Bestel
2002-09-03 23:44 ` Peter T. Breuer
2002-09-04 7:06 ` Alexander Viro
2002-09-04 9:02 ` Peter T. Breuer
2002-09-04 11:05 ` Anton Altaparmakov
2002-09-04 11:39 ` Peter T. Breuer
2002-09-04 14:13 ` Anton Altaparmakov
2002-09-05 22:45 ` Daniel Phillips
2002-09-05 23:06 ` Anton Altaparmakov
2002-09-05 23:17 ` Daniel Phillips
2002-09-05 23:24 ` Anton Altaparmakov
2002-09-06 8:57 ` Peter T. Breuer
2002-09-06 9:08 ` Anton Altaparmakov
2002-09-06 9:17 ` Peter T. Breuer
2002-09-06 9:50 ` Lars Marowsky-Bree
2002-09-06 14:10 ` Peter T. Breuer
2002-09-06 13:20 ` Helge Hafting
2002-09-06 13:22 ` Rik van Riel
2002-09-06 13:53 ` Peter T. Breuer
2002-09-06 15:32 ` Rik van Riel
2002-09-06 14:25 ` Peter T. Breuer
2002-09-06 17:20 ` Anton Altaparmakov
2002-09-06 17:33 ` Daniel Phillips
2002-09-06 19:32 ` Anton Altaparmakov
2002-09-06 18:29 ` Peter T. Breuer
2002-09-06 19:30 ` Anton Altaparmakov
2002-09-09 16:30 ` Peter T. Breuer
2002-09-17 11:21 ` Anton Altaparmakov
2002-09-05 8:30 ` Helge Hafting
2002-09-05 8:43 ` David Lang
2002-09-05 14:24 ` Peter T. Breuer
2002-09-05 16:59 ` David Lang
2002-09-05 23:08 ` Daniel Phillips
2002-09-06 8:14 ` Ingo Oeser
2002-09-06 9:06 ` Helge Hafting
2002-09-04 12:49 ` Ragnar Kjørstad [this message]
2002-09-04 12:54 ` Peter T. Breuer
2002-09-04 13:22 ` Ragnar Kjørstad
2002-09-05 3:36 ` Edgar Toernig
2002-09-05 3:58 ` Alexander Viro
2002-09-05 15:59 ` [RFC] intent-based lookup (was: mount flag "direct") Andreas Dilger
2002-09-03 23:24 ` (fwd) Re: [RFC] mount flag "direct" David Lang
2002-09-04 4:27 ` Kevin O'Connor
2002-09-03 23:05 ` David Lang
[not found] <02Sep6.161154edt.62237@gpu.utcc.utoronto.ca>
2002-09-07 13:36 ` Peter T. Breuer
[not found] <20020909181724.GA31153@ravel.coda.cs.cmu.edu>
2002-09-09 18:58 ` Peter T. Breuer
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