From mboxrd@z Thu Jan  1 00:00:00 1970
From: Iordan Iordanov <iordan@cdf.toronto.edu>
Subject: differencing disks support
Date: Wed, 08 Jun 2011 16:09:50 -0400
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Does KVM support or plan to support differencing disks (where there is a 
read-only source disk, and each person running a virtual machine can 
save block-level changes that their virtual machine is making to the 
disk in a separate "differencing" image)?

If so, can somebody suggest how I may make use of this feature (i.e. 
building the newest version from source, and any other requirements).

Thanks!
Iordan