On Fri, May 11, 2007 at 06:49:57PM +0200, carlopmart wrote: > Hi all, > > RedHat's documentation about using fence_xvmd and fence_xvm it isn't very > clear, almost for me. > > I need to use another fence device than manual on my actual two-node > cluster suite under xen. To do this I think to use fence_xvmd and fence_xvm > options. But how? What are the minimum requeriments to use it?. My only > option is: > - Dom0 runs fence_xvmd and domU two-nodes runs fence_xvm clients, but, > will dom0 be need act as a part of the cluster?? or not? Dom0 should be a part of *its own* cluster - which is not part of the VM cluster. It can be a 1-node cluster. (1) So, configure dom0 like a 1-node cluster with no fencing. (2) Add "<fence_xvmd/>" to cluster.conf in dom0 as a child of the "<cluster>" tag. (3) dd if=/dev/urandom of=/etc/cluster/fence_xvm.key (4) scp /etc/cluster/fence_xvm.key root@virtual_node_1:/etc/cluster (5) scp /etc/cluster/fence_xvm.key root@virtual_node_2:/etc/cluster (6) Start cman on dom0 - this should start fence_xvmd for you For testing correct fence_xvm.key distribution, try: (1) Log in to domain-0 in one window (2) killall fence_xvmd (3) fence_xvmd -fddddddddd (4) Log in to a guest domain from another window (5) fence_xvm -H <domain_name> -o null If everything works, you should see all kinds of useless garbage on the screen in the fence_xvmd window. If that works, add fence_xvm to the guest-domain cluster using system-config-cluster or Conga. (All you need is the domain name which corresponds to the cluster name for each guest domain node). -- Lon Hohberger - Software Engineer - Red Hat, Inc. -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
