This is what I would do: 1) Create a *-ds.xml file in a temporary location (anywhere other than server/xxx/deploy). 2) Either copy that file to server/xxx/deploy or, better yet, use the deploy operation on the MainDeployer MBean to deploy the *-ds.xml file. 3) When I am done with the data source, I would remove the *-ds.xml file from the deploy directory (or call the undeploy operation on MainDeployer if that is how I deployed it) I hope you don't expect to get any kind of decent performance. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4165108#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...