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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 23:30:38
Message-ID: 604qumqm3l.fsf@dev6.int.libertyrms.info (view raw or flat)
Thread:
Lists: pgsql-adminpgsql-performance
jd(at)commandprompt(dot)com ("Joshua D. Drake") writes:
>>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.
>
> True but frankly, they shouldn't. EXT3 has some serious issues. In fact
> if you are running a stock RH kernel before 2.4.20 you can destroy your
> PostgreSQL database with it.
>
> Not to mention how slow it is ;)

I'm not defending ext3's merits; just the clear reason why RHAT uses
it :-).

>>>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."
>>
> That is not true see:
>
> http://kerneltrap.org/node/view/1751

Well, I just downloaded 2.4.24 this week, and I don't see XFS included
in it.  I see ReiserFS, ext3, and JFS, but not XFS.

>>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.
>>
> Again see above :)

>>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.
>
> What is official?

"Is it included in the kernel sources hosted at ftp.kernel.org?"
-- 
let name="cbbrowne" and tld="libertyrms.info" in name ^ "@" ^ tld;;
<http://dev6.int.libertyrms.com/>
Christopher Browne
(416) 646 3304 x124 (land)

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