"vitor_b" wrote : But still i need a small clarification or confirmation: Persistence applies only to situation when we redeploy our mbean or restart server? I am not sure that your question is clear. Based on the persistence policy you select, it will do different things. MBean redeployment and/or server restart really isn't related. "vitor_b" wrote : And where jboss stores persistence state for mbeans? JBOSS_HOME/server/SERVER_NAME/data/xmbean-attrs is the default location. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4023090#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...