Windows Server 2008 R2 Datacenter is optimized for large-scale virtualization on small to large server systems & for workloads that require high levels of scalability, reliability, & availability to support large, mission-critical applications. With unlimited virtualization use rights & a hypervisor-based virtualization technology, Windows Server 2008 R2 Datacenter provides the flexibility & cost savings to easily run large numbers of virtualized Windows Server instances. Windows Server 2008 R2 Datacenter supports the memory & processing needs of large-scale, business-critical workloads such as ERP, databases, server consolidations, & custom & line-of-business applications. It's a great time to upgrade! Windows Server 2008 R2, with Service Pack 1 (SP1) provides virtualization technology that enables you to deliver more advanced capabilities to your business for increased IT efficiency & agility. Whether you want to consolidate servers, build a private cloud or offer Virtual Desktop Infrastructure, the addition of these powerful virtualization features enables you to take your datacenter & desktop virtualization strategy to a high level. Windows Server 2008 R2 Service Pack 1 is Windows Server operating system from Microsoft. Designed to help organizations reduce operating costs & increase efficiencies & agility, Windows Server 2008 R2 with SP1 expands the Microsoft virtualization strategy for both server & desktop workloads by adding dynamic memory management for virtualized workloads with dynamic memory & Microsoft Remote FX for a rich end user experience with a Virtual Desktop Infrastructure (VDI) & session virtualization. Windows Server 2008 R2 with SP1 also provides enhanced management control over resources across the enterprise. It is designed to provide better energy efficiency & performance by reducing power consumption & lowering overhead costs.