On Sat, Oct 24, 2015 at 07:42:53AM +0000, Tim Bell wrote: > Always having ephemeral disks as raw might make sense given that there > is going to be little overlap with others (and therefore the qcow2 > benefits are not significant) The current big benefit for qcow2 is really the abilityo have a backing file, but Nova only uses that for the root disk, so having it for ephemeral disks isn't important and so they could easily be raw. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|