Dear all, I noticed that live snapshots are disabled (since juno at least) when using "rbd" or "lvm" storage, even when workarounds.disable_libvirt_snapshots is False
The culprit is https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L1374 but I don't understand why: the comment only mentions encrypted ephemeral LVM storage, and then also says that LVM requires cold snapshot anyway, but there is no mention of any issue/mailing list thread. At the same time, no mention of ceph is present. So: is it dangerous/unsupported? Why? Why also ceph is unsupported? I'm using RBD for ephemeral storage, using a patch to implement nova snapshots using ceph layering, and our compute nodes have very little disk space, which means that it's very likely that snapshots will fail because libvirt is unable to save the ram state to disk. Thank you in advance, Antonio messina -- [email protected] [email protected] +41 (0)44 635 42 22 S3IT: Service and Support for Science IT http://www.s3it.uzh.ch/ University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
