> We are in an even worst situation: we have flavors with 256GB of ram > but only 100GB on the local hard disk, which means that we cannot > snapshot VMs with this flavor. > > If there is any way to avoid saving the content of the ram to disk (or > maybe there is a way to snapshot the ram to, e.g., ceph), we would be > very happy.
Hello Antonio, I received a new feedback in the Openstack patch review (https://review.openstack.org/#/c/295865/) pointing me to this: https://github.com/openstack/nova/blob/82a684fb1ae1dd1bd49e2a8792a2456b4d3ab037/nova/conf/workarounds.py#L72 so it looks like live snapshots are disabled because of an old buggy libvirt. So actually this process of dumping all the RAM to disk is not a bad design, but it is a necessary workaround because of libvirt not being stable. It makes sense now. At the moment I am running libvirt version 1.2.12-0ubuntu14.4~cloud0. Maybe I can disable the workaround and try to do faster snapshots ? Any other operator has feedback about this ? Thank you Saverio _______________________________________________ OpenStack-operators mailing list [email protected] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
