On Fri, Jun 10, 2011 at 08:08:26AM -0400, Genes MailLists wrote: > (i) Variable size image for the VM > - it grows to accommodate need Interested to know why sparse images or qcow2 don't fulfil your needs. These have been supported in KVM (and Xen) since forever. > (ii) Easy to duplicate VM image (with UUID change) > > So its easy to deploy images on same or different computers This is what I do: https://rwmj.wordpress.com/2010/09/24/tip-my-procedure-for-cloning-a-fedora-vm/ Also I'm still looking at what to do about the "virt-clone" tool: https://rwmj.wordpress.com/2011/05/11/virt-tools-survey-virt-clone/ > (iii) All VM data is stored in user home > > This means installing a new OS does not negatively impact VM's You can do this with KVM too. There is a performance penalty to using files (but VirtualBox has the same penalty). With old libvirt you had to set SELinux labels manually, but new versions do it for you. > (iv) Control over the network I actually prefer libvirt's default (private network with NAT) configuration. It's good for what I do which is testing lots of VMs. It's a lot better than Xen's default setting of "bugger up the network", or VMware's "first, install these binary drivers in your kernel" config. For production, I change libvirt to use a shared bridge by adjusting a couple of configuration files: http://wiki.libvirt.org/page/Networking#Bridged_networking_.28aka_.22shared_physical_device.22.29 Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel