From: Emmanuel Florac <eflorac@intellique.com>
To: Eric Sandeen <sandeen@sandeen.net>
Cc: Justin Piszcz <jpiszcz@lucidpixels.com>, xfs@oss.sgi.com
Subject: Re: Anyone using XFS in production on > 20TiB volumes?
Date: Thu, 23 Dec 2010 01:26:55 +0100 [thread overview]
Message-ID: <20101223012655.2681c596@galadriel.home> (raw)
In-Reply-To: <4D124B71.9030401@sandeen.net>
Le Wed, 22 Dec 2010 13:03:13 -0600 vous écriviez:
> http://xfs.org/index.php/XFS_FAQ#Q:_I_want_to_tune_my_XFS_filesystems_for_.3Csomething.3E
>
> which mentions getting your geometry right if it's hardware raid
> that can't be detected automatically.
Just as a side note : I tried several times to manually set the
filesystem layout to precisely match the underlying hardware RAID
with sunit and swidth but didn't find that it made a noticeable
difference. On my 39.9 TB systems, the default agcount is 39, while the
optimum would be (theorically at least) 42.
--
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Emmanuel Florac | Direction technique
| Intellique
| <eflorac@intellique.com>
| +33 1 78 94 84 02
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next prev parent reply other threads:[~2010-12-23 0:25 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 [this message]
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
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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