Oracle Real Application Clusters enables all applications to exploit cluster database availability, scalability and performance with no application modifications. Applications can treat Oracle Real Application Clusters as a single system and do not need to be modified or partitioned to achieve near-linear cluster database scalability. This means you can horizontally scale the database tier as demand continues to grow, without changes to the application.
Oracle Real Application Clusters is self-tuning and adapts to the changing nature of the database workload. It dynamically shifts database resources across the cluster servers for optimal performance.
Per processor shall be defined as all processors where the Oracle programs are installed and/or running. Programs licensed on a Processor basis may be accessed by your internal users (including agents and contractors) and by your third party users.