[prev in list] [next in list] [prev in thread] [next in thread]
List: linux-xfs
Subject: Re: Anyone using XFS in production on > 20TiB volumes?
From: Chris Wedgwood <cw () f00f ! org>
Date: 2010-12-22 18:50:05
Message-ID: 20101222185005.GB30073 () puku ! stupidest ! org
[Download RAW message or body]
On Wed, Dec 22, 2010 at 12:35:46PM -0500, Justin Piszcz wrote:
> Is this by specifying the sunit/swidth?
yes
> Can you elaborate on which paramters you modified?
i set both to match what the hw raid was doing, the lru that is my
brain doesn't have the detail anymore sorry
at a guess it was probably something like 64k chunk, 20 devices wide
the metadata performance difference between wrong and right is quite
noticable
> Yes and have it set to perform(ance).
be sure you have a bbu, there is a setting for force wc --- i wouldn't
do that
i would have it wc when the battery is good automatically disable it
when it's bad
i was able to buffer ~490MB of writes in the card without trying hard,
that's a lot of pain to get corrupted
> Going to be using 19HDD x 3TB Hiatchi 7200RPMs, (18HDD RAID-6 + 1
> hot spare).
are those 4k sector drives? i ask because it's not clear if/how the
raid fw deals with these
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic