From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christian Samsel <csamsel@gmxpro.de>
Subject: Re: large overhead with blktap2/vhd
Date: Thu, 24 Jun 2010 10:41:30 +0200
Message-ID: <201006241041.30901.csamsel@gmxpro.de>
References: <201006231726.06620.degroot@univention.de>
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Cc: Bastian de Groot <degroot@univention.de>
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Am Mittwoch, 23. Juni 2010, 17:26:05 schrieb Bastian de Groot:
> Hi everybody,
> 
> I am searching for a copy-on-write solution for Xen and tested blktap2 with
> the vhd backend.
> 
> My Test:
> 
> I've created a master-image with "dd" and installed WindowsXP on the image.
> Then I used vhd-util to create a copy-on-write-image for the master-image.
> 
> After booting the VM and logging in the, the cow-image had a size of 260
> MB. That's a little bit weird, because I didn't really changend any data.
Just one word: swap.

Christian