On Wed, 9 Feb 2011 14:08:15 -0500, Kenneth Armstrong wrote:
> Here's my latest thoughts on how to do this: > > With 2 nodes, and using the Red Hat Cluster suite to fence the two > hosts, and all vm disk images stored on shared storage (for example, > an iSCSI LUN) that both hosts will have access to, and using a GFS2 > formatted partition on each node. Also, using Bind Mounts to mount > /etc/libvirt/qemu onto the GFS2 partition so that the vm xml files > will be sync'ed up between both hosts. > > Does that make sense? Or would their be something simpler to try? Why do you need shared copies of the xml?I've got a shared GFS2 file system for the VM image files, using rmganager to manage the VMs and have the xml defined statically in the libvirtd instances on the cluster members. If/when I change something in terms of the VM definition on one cluster member, I "# virsh dumpxml > ./vm.xml" and "# virsh define" it on the other members. Same UUID for the VMs on all cluster members.
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