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Re: High Performance/High Reliability File system on SuSE64

From: Christopher Browne <cbbrowne(at)libertyrms(dot)info>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: High Performance/High Reliability File system on SuSE64
Date: 2004-01-23 21:39:16
Message-ID: 608yjyqr97.fsf@dev6.int.libertyrms.info (view raw or flat)
Thread:
Lists: pgsql-adminpgsql-performance
jd(at)commandprompt(dot)com ("Joshua D. Drake") writes:
>>Yes, I guess I shoulda thought of that, eh?  Thanks.  The docs do
>>suggest that there are some significant differences between the two
>>versions of the filesystem, so I'm not sure how sanguine I'd be about
>>the degree of "testing" the filesystem has received on Linux.  On the
>>
> Well SuSE ships with XFS and SuSE tends to be really good about
> testing.  Better than RedHat IMHO. Just the fact that RedHat uses
> ext3 as the default is a black eye.

Well, I'd point to one major factor with RHAT; they employ Stephen
Tweedie, creator of ext3, and have been paying him to work on it for
some time now.  If they _didn't_ promote use of ext3, they would be
very much vulnerable to the "won't eat their own dogfood" criticism.

> XFS has been around a LONG time, and on Linux for a couple of years
> now.  Plus I believe it is the default FS for all of the really high
> end stuff SGI is doing with Linux.

Ah, but there is a bit of a 'problem' nonetheless; XFS is not
'officially supported' as part of the Linux kernel until version 2.6,
which is still pretty "bleeding edge."  Until 2.6 solidifies a bit
more (aside: based on experiences with 2.6.0, "quite a lot more"), it
is a "patchy" add-on to the 'stable' 2.4 kernel series.

Do the patches work?  As far as I have heard, quite well indeed.  But
the fact of it not having been 'official' is a fair little bit of a
downside.

> I would (and do) trust XFS currently over ANY other journalled
> option on Linux.

I'm getting less and less inclined to trust ext3 or JFS, which "floats
upwards" any other boats that are lingering around...
-- 
let name="cbbrowne" and tld="libertyrms.info" in String.concat "@" [name;tld];;
<http://dev6.int.libertyrms.com/>
Christopher Browne
(416) 646 3304 x124 (land)

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