I'd recommend separate cache instances, so you have the flexibility to tune each cache differently based on what it needs to do. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4002830#4002830 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4002830