Re: differencing disks support

Markus Armbruster
2011-06-09T06:25:06Z

Iordan Iordanov <iordan@cdf.toronto.edu> writes:

> 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).

Check out image format qcow2.

LVM snapshots were already mentioned.