Oracle Real Application Clusters (RAC)

Oracle Real Application Clusters (RAC) is a database technology that allows multiple servers (nodes) to work together as a single system. These servers share a common database, providing high availability, scalability, and fault tolerance. If one server fails, others continue to operate without interruption, ensuring continuous access to data. RAC enables organizations to handle increased workload efficiently by adding more servers, while maintaining consistent, reliable database performance. It is commonly used in enterprise environments where downtime or data loss is unacceptable.