From: David Chinner <dgc@sgi.com>
To: "Raz Ben-Jehuda(caro)" <raziebe@gmail.com>
Cc: nscott@aconex.com, xfs@oss.sgi.com
Subject: Re: changing xfs file system tunnings(sunit,swidth) after mkfs.xfs
Date: Tue, 27 Mar 2007 23:20:47 +1100 [thread overview]
Message-ID: <20070327122047.GA32597093@melbourne.sgi.com> (raw)
In-Reply-To: <5d96567b0703270004j72d89618xe27bbf3d5e44eea1@mail.gmail.com>
On Tue, Mar 27, 2007 at 09:04:33AM +0200, Raz Ben-Jehuda(caro) wrote:
> ahha...
> but did you ever tried to set an sunit value bigger than the one
> set during the mkfs.xfs ?
Sure - but you've got to satisfy a whole heap of alignment
and size considerations when changing sunit e.g. AGs must be
stripe unit aligned and their size must be a whole multiple
of the stripe unit.
Hence any new value generally needs to be a multiple so
that filesystem alignment remains valid.
You might want to get a recent kernel, too, as it will
tell more about the reason why the mount with the new
sunit is failing (in dmesg).
Cheers,
dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
next prev parent reply other threads:[~2007-03-27 12:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-26 20:25 changing xfs file system tunnings(sunit,swidth) after mkfs.xfs Raz Ben-Jehuda(caro)
2007-03-26 22:10 ` Nathan Scott
2007-03-27 7:04 ` Raz Ben-Jehuda(caro)
2007-03-27 9:48 ` Shailendra Tripathi
2007-03-27 12:20 ` David Chinner [this message]
2007-03-27 23:50 ` Nathan Scott
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