Cary, Could you be a little more specific, I don't quite understand this? I am using one node right now for everything in my ETL process. However, we have load_balancing turned on. Also, why would I get file read waits if I just have one session running? One note worth mentioning here is that even the famous "I'll do TP on one RAC node and query-only on the other" strategy is prone to lots of "global cache *" activity. Why? Because of the undo blocks that are used by both nodes. ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------