Oracle Real Application Clusters (RAC) is an option to the award-winning Oracle Database 10g Enterprise Edition. Oracle RAC is a cluster database with a shared cache architecture that overcomes the limitations of traditional shared-nothing and shared-disk approaches to provide a highly scalable and available database solution for all your business applications. Oracle RAC provides the foundation for enterprise grid computing.

For years, when you needed more computing capacity, you bought more expensive computers. Now, with the Oracle Grid, add capacity on demand with one inexpensive PC server at a time for superior scalability and fast ROI. And if one department needs more capacity, use Oracle software to borrow it from another while the grid just keeps running. The Oracle Grid, runs faster, costs less, and never breaks.