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Date: Fri, 13 Sep 2002 19:32:11 +1000
From: Nero <neroz@iinet.net.au>
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To: Ivan Ivanov <ivandi@vamo.orbitel.bg>
CC: linux-kernel@vger.kernel.org
Subject: Re: XFS?
References: <Pine.LNX.4.44.0209131011340.4066-100000@magic.vamo.orbitel.bg>
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Ivan Ivanov wrote:
> I think that you missed the main problem with all this new "great"
> filesystems. And the main problem is potential data loss in case of a
> crash. Only ext3 supports ordered or journal data mode.
> 
> XFS and JFS are designed for large multiprocessor machines powered by UPS
> etc., where the risk of power fail, or some kind of tecnical problem is
> veri low.
> 
> On the other side Linux works in much "risky" environment - old
> machines, assembled from "yellow" parts, unstable power suply and so on.
> 
> With XFS every time when power fails while writing to file the entire file
> is lost. The joke is that it is normal according FAQ :)
> JFS has the same problem.
> With ReiserFS this happens sometimes, but much much rarely. May be v4 will
> solve this problem at all.
> 
> The above three filesystems have problems with badblocks too.
> 
> So the main problem is how usable is the filesystem. I mean if a company
> spends a few tousand $ to provide a "low risky" environment, then may be
> it will use AIX or IRIX, but not Linux.
> And if I am running a <$1000 "server" I will never use XFS/JFS.

This just is not the issue. If we only wanted filesystems which behaved 
like ext2/3, we would only have ext2/3. The issue, if you have all 
forgotten, is Linus not providing information on why XFS is a problem to 
be merged. He asked them to make it easy to merge - they have done so. 
Now they ask why the patch is ignored, and are promptly ignored further.


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