Re: [libvirt-users] Prevent starting a guest concurrently on multiple hosts when using shared storage

I've not done it myself, but see: http://libvirt.org/locking.html Dave

On Fri, Mar 16, 2012 at 02:28:01AM +0100, Andreas Ntaflos wrote: > Hi list, > > Scenario: Libvirt managing KVM-based guests on multiple physical > virtualisation hosts. These hosts are attached to some kind of shared > storage, be it NFS, GFS2 or whatever. Guest images live on the shared > storage so that VMs can be migrated (live or not) between the physical > hosts. Basically all Libvirt hosts have definitions of all guests. > > How can I prevent the same guest from being started on different hosts > concurrently, either by accident or intentionally? As far as I can see > there is no locking or similar mechanism that would indicate to the > Libvirt daemon that a guest (and its VM image) is already running on/in > use by another host. > > This might be a very basic question but I can't seem to find a > satisfying answer. Is it even possible? Or does using a shared storage > mean that one has to be really, really careful what to start, and where? > Is this even something for which Libvirt should be responsible? > > Any insight is appreciated. > > Thanks, > > Andreas > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users _______________________________________________ libvirt-users mailing list libvirt-users(a)redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users