A number of hypervisors have a mode in which changes made to storage are not persisted across a reboot of the VM. qemu uses the -snapshot flag; VMware refers to this functionality as non-persistent disk[1]. Is this functionality something that is interesting to libvirt? Dave [1] http://www.virtuesofvirtualization.com/2006/10/magic-of-nonpersistent-dri...

On Thu, Oct 07, 2010 at 06:49:05PM -0400, Dave Allan wrote:

> A number of hypervisors have a mode in which changes made to storage > are not persisted across a reboot of the VM. qemu uses the -snapshot > flag; VMware refers to this functionality as non-persistent disk[1]. Is > this functionality something that is interesting to libvirt? yes I think this is an important use case, it allows for example a rather trivial and safe implementation of things like open kiosk you may find in public places (or implement a scratch environment allowing the kids to play without much risk for a more personal/private use :-) !)