The simplest way to start a JBoss server cluster is to start several JBoss instances on the same local network, using the run -c all command for each instance. Those server instances, all started in the all configuration, detect each other and automatically form a cluster. See http://docs.jboss.org/jbossas/jboss4guide/r5/html/cluster.chapt.html for more. If the nodes don't form a cluster, here are a couple of links for troubleshooting: http://wiki.jboss.org/wiki/Wiki.jsp?page=TestingJBoss http://www.jgroups.org/javagroupsnew/docs/newuser/node6.html View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3964695#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...