From: Martin Steigerwald <Martin@lichtvoll.de>
To: xfs@oss.sgi.com, stan@hardwarefreak.com
Cc: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Subject: Re: suddenly slow writes on XFS Filesystem
Date: Mon, 7 May 2012 21:08:14 +0200 [thread overview]
Message-ID: <201205072108.15134.Martin@lichtvoll.de> (raw)
In-Reply-To: <4FA7FA14.6080700@hardwarefreak.com>
Am Montag, 7. Mai 2012 schrieb Stan Hoeppner:
> What I would suggest is doing an xfsdump to a filesystem on another LUN
> or machine, expand the size of this LUN by 50% or more (I gather this
> is an external RAID), format it appropriately, then xfsrestore. This
> will eliminate your current free space fragmentation, and the 50% size
> increase will delay the next occurrence of this problem. If you can't
> expand the LUN, simply do the xfsdump/format/xfsrestore, which will
> give you contiguous free space.
Maybe the new dm thin provisioning could help here? But it might just move
the fragmentation from the filesystem to the device mapper layer. I did not
yet check the implementation details of the new thin provisioning target.
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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next prev parent reply other threads:[~2012-05-07 19:08 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-06 9:01 suddenly slow writes on XFS Filesystem Stefan Priebe
2012-05-06 10:31 ` Martin Steigerwald
2012-05-06 10:33 ` Martin Steigerwald
2012-05-06 15:45 ` Stan Hoeppner
2012-05-06 19:25 ` Stefan Priebe
2012-05-07 1:39 ` Dave Chinner
2012-05-06 21:43 ` Martin Steigerwald
2012-05-07 6:40 ` Stefan Priebe - Profihost AG
2012-05-07 1:34 ` Dave Chinner
2012-05-07 6:39 ` Stefan Priebe - Profihost AG
2012-05-07 7:17 ` Dave Chinner
2012-05-07 7:22 ` Stefan Priebe - Profihost AG
2012-05-07 16:36 ` Stan Hoeppner
2012-05-07 19:08 ` Martin Steigerwald [this message]
2012-05-07 20:05 ` Stefan Priebe
2012-05-09 6:57 ` Stan Hoeppner
2012-05-09 7:04 ` Dave Chinner
2012-05-09 7:36 ` Stefan Priebe - Profihost AG
2012-05-09 7:49 ` Stan Hoeppner
2013-02-15 15:06 ` 32bit apps and inode64 Stefan Priebe - Profihost AG
2013-02-15 21:46 ` Ben Myers
2013-02-16 10:24 ` Stefan Priebe - Profihost AG
2013-02-17 21:33 ` Dave Chinner
2013-02-18 8:12 ` Stefan Priebe - Profihost AG
2013-02-18 22:06 ` Dave Chinner
2013-02-17 8:13 ` Jeff Liu
2013-02-19 19:11 ` Ben Myers
2012-05-07 23:42 ` suddenly slow writes on XFS Filesystem Dave Chinner
2012-05-07 8:21 ` Martin Steigerwald
2012-05-07 16:44 ` Stan Hoeppner
2012-05-07 8:31 ` Martin Steigerwald
2012-05-07 13:57 ` Stefan Priebe - Profihost AG
2012-05-07 14:32 ` Martin Steigerwald
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