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Re: xfs tuning for a 830 GB partition (mkfs.xfs options)

To: Abel Coto <whitewolf573@xxxxxxxxx>
Subject: Re: xfs tuning for a 830 GB partition (mkfs.xfs options)
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Thu, 9 Dec 2010 12:34:14 +1100
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20101209010531.GE32766@dastard>
References: <AANLkTimkZB20eqywSPvwh00gcXWcr4_Eqm5u40P6RqaJ@xxxxxxxxxxxxxx> <20101209010531.GE32766@dastard>
User-agent: Mutt/1.5.20 (2009-06-14)
On Thu, Dec 09, 2010 at 12:05:31PM +1100, Dave Chinner wrote:
> On Wed, Dec 08, 2010 at 08:32:28PM +0100, Abel Coto wrote:
> > I want to create a 830 GB partition, to mount as /home in my Centos 5.4
> > workstation.
> > 
> > Actually i have /home not mounted ,so i would have to create the new
> > partition in the lvm,format it and use rsync to copy /home directory to it.
> > 
> > for a 830 GB partition that i will use to save my data in general and also
> > 3d / CG projects and renders once finished them what agcount value should be
> > used. I have read that mkfs default option creates 1 allocation group each
> > 4G , so i understand that for a 830 GB partition agcount should be 208.
> > 
> > It is this correct ?
> 
> No, you've read something that is at least 5 years out of date. Just
> use the defaults - they are already optimised for best performance
> in most circumstances.

Seeing as I say this so often:

http://xfs.org/index.php/XFS_FAQ#Q:_I_want_to_tune_my_XFS_filesystems_for_.3Csomething.3E

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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