From subbarao at computer.org  Fri Mar  4 16:12:24 2011
From: subbarao at computer.org (Kartik Subbarao)
Date: Fri, 04 Mar 2011 11:12:24 -0500
Subject: [Thincrust-devel] partition alignment
Message-ID: <4D710F68.2000800@computer.org>

I notice the following warning message when using appliance-creator:

Warning: The resulting partition is not properly aligned for best 
performance.
['/']

I searched around and found various solutions that people suggest for 
this. But it's also unclear to me how important alignment is for virtual 
disks.

Could someone comment on whether this has much/any impact on the 
performance of the VM? Would it be possible or make sense for 
appliance-creator to optimize alignment when creating the partition?

Thanks,

	-Kartik



From mgoldman at redhat.com  Sat Mar  5 07:56:49 2011
From: mgoldman at redhat.com (Marek Goldmann)
Date: Sat, 5 Mar 2011 08:56:49 +0100
Subject: [Thincrust-devel] partition alignment
In-Reply-To: <4D710F68.2000800@computer.org>
References: <4D710F68.2000800@computer.org>
Message-ID: <4E1A662E-72E3-47AB-AA52-C57D29DB5CE0@redhat.com>

Hi Kartik,

There was a feature request added for BoxGrinder (which is based on appliance-creator). So I'm interested in this topic too.

	https://issues.jboss.org/browse/BGBUILD-157

A really nice document is attached which describes the issue (and solution).

--Marek

On 2011-03-04, at 17:12, Kartik Subbarao wrote:

> I notice the following warning message when using appliance-creator:
> 
> Warning: The resulting partition is not properly aligned for best performance.
> ['/']
> 
> I searched around and found various solutions that people suggest for this. But it's also unclear to me how important alignment is for virtual disks.
> 
> Could someone comment on whether this has much/any impact on the performance of the VM? Would it be possible or make sense for appliance-creator to optimize alignment when creating the partition?
> 
> Thanks,
> 
> 	-Kartik
> 
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