----- On Mar 1, 2017, at 8:11 AM, Ulrich Windl ulrich.wi...@rz.uni-regensburg.de wrote:
>>>> Digimer <li...@alteeve.ca> schrieb am 24.02.2017 um 19:20 in Nachricht > <8762afa9-0f45-04c7-2404-565dcabf9...@alteeve.ca>: > > [...] >> Aside from this, I strongly recommend against snapshots as a backup >> mechanism anyway. There is no way to ensure that that operating system >> and applications are in a clean state when you take the snapshot, so >> using the image is like recovering from sudden power loss. If data was >> in cache but not flushed out, you could have corruption. >> >> If you can't stop your VMs, I'd recommend using a backup application >> inside the VM that knows how to ensure that your apps and the OS are in >> a clean state, particularly for DBs. > > Actually that's what we are doing, but at some point in the past I had ruined > the directory with the VM images (user error). THe problem then was that you > need a running VM to restore files inside the VM. This is when you would like > to have a crash-consistent backup image of your VM. However I found no working > solution yet (we have VM images hosted on OCFS2, hosted on a cLVM LV). > I changed the approach. Inside the vm i have also lv's. When changing configuration inside the vm i will snapshot inside. Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Heinrich Bassler, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671 _______________________________________________ Users mailing list: Users@clusterlabs.org http://lists.clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
