I second that. RAC´s job should be done by the hardware, it is not a software job. In the situation when multy-core systems are entering the market, CPU clock speed seems to be reaching some limits - shouldn´t we expect multy-CPU boxes to become a commodity? BTW: we took 16CPU P5nn route. It just works. -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Mladen Gogala Limited high availability, approximately equal to the one provided by cheap RAC configurations can usually be provided by NUMA technologies. What people don't understand is that Altix, Superdome or P595 can provide the same or higher level of uptime as clustered Dell boxes with much, much better and more predictable performance. Unfortunately, NUMA is not such a buzzword as RAC. Fyrirvari/Disclaimer http://www.landsbanki.is/disclaimer -- //www.freelists.org/webpage/oracle-l