----- On Feb 24, 2017, at 6:24 PM, Bernd Lentes [email protected] wrote:
> Hi, > > we have a two node cluster, our resources are several virtual machines running > on kvm. The vm's reside in plain logical volumes, without a filesystem inside > the lv's. > The lv's reside on a SAN. > I know that i can do a snapshot of a lv while having clvm when i acitivate it > exclusively on one node. OK. > I tried it via lvchange -aly. I got "lvchange Using logical volume(s) on > command > line. lvchange Activating logical volume "lv_cluster_01" locally". Seems to > work. > Then i'm able to take the snapshot. But what is when i'd like to activate the > lv > cluster-wide again ? Is the snapshot gone or corrupted ? > I tried to activate it cluster-wide again with "lvchange -vay". Seems to work > too. > Because, if i leave it exclusively activated on one note, i loose my high > availibilty. How can it migrate to the other host if it is exclusively > activated ? > How can i find out if a lv is activated exclusively ? How can i find out on > which node it is activated exclusively ? > > Thanks. > I read https://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/cluster_activation.html . It seems that a local activation is not an exclusiv one. Ok. I tried "lvchange -vaey" for that lv, but got: lvchange Using logical volume(s) on command line lvchange Activating logical volume "lv_cluster_01" exclusively lvchange Error locking on node 40a86414: Device or resource busy I shut down the guest, still the same message. 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: [email protected] 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
