From: Eric Sandeen <sandeen@sandeen.net>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: xfs@oss.sgi.com
Subject: Re: Anyone using XFS in production on > 20TiB volumes?
Date: Thu, 23 Dec 2010 15:12:55 -0600 [thread overview]
Message-ID: <4D13BB57.80309@sandeen.net> (raw)
In-Reply-To: <alpine.DEB.2.00.1012231304130.12482@p34.internal.lan>
On 12/23/10 12:06 PM, Justin Piszcz wrote:
>
> On Thu, 23 Dec 2010, Justin Piszcz wrote:
>
>
> Hi,
>
> How come parted using (optimal at 1mb alignment is slower than no
> partition?
because parted got it wrong, sounds like.
> In addition, sunit and swidth set properly as mentioned
> earlier appears to be _slower_ than defaults with no partitions.
stripe unit over an incorrectly aligned partition won't help
and I suppose could make it worse.
align your partitions, using sector units, to a stripe width unit.
Set the stripe width properly on the fs on top of that.
-Eric
>
> http://home.comcast.net/~jpiszcz/20101223/final.html
>
> Justin.
>
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next prev parent reply other threads:[~2010-12-23 21:10 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-22 16:30 Anyone using XFS in production on > 20TiB volumes? Justin Piszcz
2010-12-22 16:56 ` Emmanuel Florac
2010-12-22 19:03 ` Eric Sandeen
2010-12-23 0:26 ` Emmanuel Florac
2010-12-23 0:28 ` Justin Piszcz
2010-12-23 0:56 ` Dave Chinner
2010-12-23 9:43 ` Justin Piszcz
2010-12-23 12:03 ` Emmanuel Florac
2010-12-23 18:06 ` Justin Piszcz
2010-12-23 18:55 ` Emmanuel Florac
2010-12-23 19:07 ` Justin Piszcz
2010-12-23 19:54 ` Stan Hoeppner
2010-12-23 21:48 ` Emmanuel Florac
2010-12-23 23:21 ` Stan Hoeppner
2010-12-23 21:50 ` Emmanuel Florac
2010-12-23 22:04 ` Justin Piszcz
2010-12-23 19:29 ` Justin Piszcz
2010-12-23 19:58 ` Stan Hoeppner
2010-12-24 1:01 ` Stan Hoeppner
2010-12-23 21:12 ` Eric Sandeen [this message]
2010-12-23 1:10 ` Emmanuel Florac
2010-12-22 17:06 ` Chris Wedgwood
2010-12-22 17:10 ` Justin Piszcz
2010-12-22 17:32 ` Chris Wedgwood
2010-12-22 17:35 ` Justin Piszcz
2010-12-22 18:50 ` Chris Wedgwood
2010-12-22 19:24 ` Justin Piszcz
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