I have 2 KVM servers running Windows Guests. I want to create a Qcow2 image with Windows 7 on it, install the base software needed, and then make that a backing image, read-only, with one qcow2 overlay on top which will be read write. I will take a copy of the backing image and put it on the second server as well, then whenever I need to create a clone, I only need to make a copy of the overlay and create a new VM on the second server with the identical backing image, and this overlay as the writable image. This should be a fast way to create point in time clones of the first server, and will save me time since the overlay should be smaller than using a single qcow2 image, yes?
libvirt 0.10