http://blogs.technet.com/b/sqlman/archive/2009/06/01/are-you-thinking-of-implementing-oracle-rac-you-might-want-to-think-again.aspxPrior to making this decision I would strongly recommend that you read the following whitepaper - SQL Server vs. Oracle RAC white paper to find out if you do require RAC for your solution. See how SQL Server can help implement your solutions at 1/5then-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)