"kukeltje" wrote : Not sure how a ds should look like if I have no service.xml file but do want to have pooling... | Please read this one http://docs.jboss.org/jbossas/jboss4guide/r5/html/ch7.chapt.html You should understand how the -ds.xml for JCA file rar is configured, these contents gets embedded in the the generated xml by xsl transformation in Jboss4.* <!DOCTYPE connection-factories PUBLIC | "-//JBoss//DTD JBOSS JCA Config 1.5//EN" | "http://www.jboss.org/j2ee/dtd/jboss-ds_1_5.dtd"> | <!-- | The non-transaction FileSystem resource adaptor service configuration | --> | <connection-factories> | <no-tx-connection-factory> | <jndi-name>NoTransFS</jndi-name> | <rar-name>chap7-ex1.rar</rar-name> | <connection-definition> | org.jboss.chap7.ex1.ra.DirContextFactory | </connection-definition> | <config-property name="FileSystemRootDir" | type="java.lang.String">/tmp/db/fs_store</config-property> | </no-tx-connection-factory> | </connection-factories> View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4270105#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...