Windows Server 2008, Enterprise Edition provides two high-availability clustering models: Network Load Balancing clusters and Failover clusters. Clusters provide a highly available and scalable environment. Network Load Balancing clusters use standard hardware to distribute TCP/IP applications across a cluster. Failover clusters use specialized shared disk resources to provide failover and static load balancing for a variety of applications. Windows HPC Server 2008 clusters support high-performance computing and highly parallel computing tasks. In the next part of the book we’ll focus on security and on building a secure network using Windows Server 2008.