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Re: Help with XFS in VMs on VMFS

To: Jan Perci <jperci@xxxxxxxxx>
Subject: Re: Help with XFS in VMs on VMFS
From: Ben Myers <bpm@xxxxxxx>
Date: Fri, 29 Mar 2013 15:27:35 -0500
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <CAJoqCq_afu4d++fgkGGMDC55pcz62V3qyai906ihQ2d=eiyhhQ@xxxxxxxxxxxxxx>
References: <CAJoqCq9WhFi8yZnTjh_dJmOte4TWpKg3qsQLpVsZ45M8XoWiaA@xxxxxxxxxxxxxx> <51549F09.1090109@xxxxxxxxxxxxxxxxx> <20130328214550.GA3771@xxxxxxxxxxxxx> <5154E6AC.9020402@xxxxxxxxxxxxxxxxx> <CAJoqCq_afu4d++fgkGGMDC55pcz62V3qyai906ihQ2d=eiyhhQ@xxxxxxxxxxxxxx>
User-agent: Mutt/1.5.20 (2009-06-14)
Hi Jan,

On Thu, Mar 28, 2013 at 11:30:01PM -0400, Jan Perci wrote:
> Back to XFS, in this context, is there any benefit in tuning some
> parameters to get better performance, or will it all just be overshadowed
> by poor performance of the VMDKs that tuning isn't worthwhile?

At least get your stripe unit and width correct.

Beyond that I suggest you stick with the defaults unless you have a specific
need.  e.g. heavy usage of extended attributes might prompt you to use a larger
inode size to keep them inline.


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