From: Carlos Maiolino <cmaiolino@redhat.com>
To: Marcin Sura <mailing-lists@sura.pl>
Cc: xfs@oss.sgi.com
Subject: Re: mkfs.xfs -d su=XXX,sw=YYY and future volume resize
Date: Fri, 15 Jul 2016 11:46:47 +0200 [thread overview]
Message-ID: <20160715094647.GD3608@redhat.com> (raw)
In-Reply-To: <CACNifpVsOMKQyshHk8B7WrmsbGAN_fOz6qpHLBTc_N=K1xY0Dw@mail.gmail.com>
On Thu, Jul 14, 2016 at 10:19:02PM +0200, Marcin Sura wrote:
> Hi,
> When I create filesystem I can specify su and sw paramteres which match
> underlying storage device.
> So for example, If I have raid 6 volume made of 6 + 2 disks with stripe
> size of 256k I create xfs with:
> mkfs.xfs -d su=256k,sw=6 <disk>
> But what if I will extend original volume by 2 disks. sw will 8. Will
> be there a performance panelty compared to filesystem created from
> scratch with correct sw parameter?
> BR
> Marcin
Complementing Dave's answer, you can also mount the filesystem with new
alignment configuration.
You can use: sunit=value and swidth=value for mounting the FS with the new
settings. man xfs for more info.
Cheers
> _______________________________________________
> xfs mailing list
> xfs@oss.sgi.com
> http://oss.sgi.com/mailman/listinfo/xfs
--
Carlos
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next prev parent reply other threads:[~2016-07-15 9:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-14 20:19 mkfs.xfs -d su=XXX,sw=YYY and future volume resize Marcin Sura
2016-07-14 23:40 ` Dave Chinner
2016-07-15 9:46 ` Carlos Maiolino [this message]
2016-07-15 23:07 ` Dave Chinner
2016-07-18 10:10 ` Carlos Maiolino
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