You can also try (Xen, VMware also supported in this method) save_as the VM disks (live), sync the FS (within the VMs) before doing it to prevent inconsistencies. You will have a copy of the disks in the Image datastore, that can be used as backup or to instantiate other VMs.
Cheers On Thu, Oct 31, 2013 at 9:44 AM, Carlo Daffara < [email protected]> wrote: > There are many solutions; apart from using kvm snapshots (and later image > rebuild to have a single clone) we prefer the use of a filesystem that > allows for atomic snapshots (like BTRFS) or > a distributed filesystem with the same properties (like Ceph). You > snapshot the entire datastore or the single file you want, and then > reimport it within opennebula. > Take care of one thing: if you are using cache=writeback in KVM (or the > equivalent in xen or vmware) you are risking inconsistencies, unless you > stop the VM, as there are probably outstanding writes that needs to be > committed to disk that will not appear in the snapshot at all. > Carlo Daffara > > ----- Messaggio originale ----- > Da: "Soeren Malchow" <[email protected]> > A: [email protected] > Inviato: Giovedì, 31 ottobre 2013 7:41:35 > Oggetto: [one-users] Backup and Restore > > > > Dear all, > > > > i already searched the documentation and the mailing list, but did not > come up with an answer. > > > > I would like to know how to backup virtual machines in OpenNebula WITHOUT > shutting the down, or if there is a solution at all. > > > > We have an existing backup system that should be reused, exposure of the > virtual machines images files or something like that should be sufficient. > > > > Can anybody point me into the right direction ? > > > > Regards > > Soeren > > _______________________________________________ > Users mailing list > [email protected] > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > _______________________________________________ > Users mailing list > [email protected] > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > -- -- Ruben S. Montero, PhD Project co-Lead and Chief Architect OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org | [email protected] | @OpenNebula
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