Hi, I executed the following operation: */subsystem=datasources/data-source=java:jboss/datasources/ExampleDS:read-resource-description* The attribute "*pool_prefill*" is returned as : "pool-prefill" => { "description" => "Whether to attempt to prefill the connection pool. *Changing this value require a server restart*.", "type" => BOOLEAN, "required" => false, "default" => "false", "access-type" => "read-write", "storage" => "configuration", "restart-required" => "*no-services*" }, I think there is a discrepancy here : "restart-required" says service is not required to be restarted but the "description" says server itself has to be restarted. Thx Vimal