I'd second that, and add that if production is to be more than 2 nodes so should test. 2 nodes is a special/simple case for most clusters and distributed apps. Niall Litchfield On Jul 19, 2010 2:39 PM, "Jeremy Schneider" <jeremy.schneider@xxxxxxxxxxxxxx> wrote: I would add one very strong recommendation - It might make the numbers less attractive, but if you're considering a move to RAC then you absolutely should plan for a minimum of two cluster databases - one for testing/development and one for production. It's a really bad idea to plan on testing only with non-RAC systems. Make sure to include that in your hardware planning. Also consider licensing. -Jeremy Andrew Kerber wrote: > > Dont forget about redundant storage connections on each server. > > > > ... -- http://www.ardentperf.com +1 312-725-9249 Jeremy Schneider Chicago