[libvirt] Ephemeral VM operation

[Justin Clift]

On 10/08/2010 09:49 AM, 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?
>
> Dave
>
> [1]
> http://www.virtuesofvirtualization.com/2006/10/magic-of-nonpersistent-drives-in-vmware.html

 From the point of view of "giving options to end users" then it 
probably should be.

To implement in QEMU/KVM, it sounds like it could be done by using a
snapshot(s), plus nuking the snapshot when the vm is shut down?