On 11/02/2011, at 9:04 PM, Osier Yang wrote: <snip> > >> But what does 'persistent' mean? I mean, when transferring a VM to a >> destination, it will be available on the destination when migration >> completes, so what does 'persistent' mean in this context? > > It means the domain conf will be saved on your disk, e.g. > /etc/libvirt/qemu/$domain.xml. Without specifying it, your > domain will be disappear after destroying, that means your > domain is transicient, opposite meaning of persistent. This might help explain the difference as well: http://wiki.libvirt.org/page/VM_lifecycle#Transient_guest_domains_vs_Persistent_guest_domains There is also migration info on that page, but it's fairly basic so not sure how useful. Worth checking, just in case though. :) Regards and best wishes, Justin Clift
