I think this can easily be summed up as this: Scalable applications/designs scale with Oracle RAC. Non-scalable ones do not. Or to put this in a different light: If an application does not scale on Oracle RAC then it's likely that it's not scaling as well as it could/should on just a single Oracle instance. On Wed, May 19, 2010 at 12:51 AM, Martin Bach <development@xxxxxxxxxxxxxxxxx> wrote: > I also disagree with the statement that developers don't need to > know RAC-sure, we no longer use block pinging but hey, it's a cluster > and that requires some specific knowledge _about_ clustering and its > specific needs. -- Regards, Greg Rahn http://structureddata.org -- //www.freelists.org/webpage/oracle-l