It's explained in this wiki http://www.jboss.org/community/wiki/ConfigDataSources View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4250720#4250720 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4250720