Windows Server 2008 Hyper-V is the hypervisor-based virtualization feature included as a role of Windows Server 2008. It contains everything needed to support machine virtualization. Hyper-V enables IT organizations to reduce costs, to improve server utilization and to create a more-dynamic IT infrastructure. Hyper-V provides the greater flexibility because of dynamic, reliable and scalable platform capabilities combined with a single set of integrated management tools to manage both physical and virtual resources, which enables you to create an agile and dynamic datacenter and progress toward achieving self-managing dynamic systems.
In addition to Hyper-V, Microsoft is also releasing Microsoft Hyper-V Server. Microsoft Hyper-V Server provides a simplified, reliable, cost-effective and optimized virtualization solution enabling customers to reduce costs, to improve server utilization and to provision new servers rapidly. Microsoft Hyper-V Server easily plugs into customers' IT infrastructures as they can leverage their existing management tools and IT professional skill set with broad support from Microsoft and its partners.
Windows Server 2008 Hyper-V is now available as in Beta with Windows Server 2008 RC1. You can now start evaluating the Windows Server 2008 Hyper-V platform which is easy to adopt, learn and use, because of the easy migration from Virtual Server 2005 environments, and it works with your existing IT infrastructure and management tools.
Windows Server 2008 Hyper-V Scenarios
Virtualize multiple operating systems—Windows, Linux, and others—on a single server and fully leverage the power of x64 computing. With virtualization built into the operating system and with simpler, more flexible licensing policies, it’s now easier than ever to take advantage of all the benefits and cost savings of virtualization. Windows Server 2008 provides you with the flexibility to create an agile and dynamic datacenter to meet your changing business needs.
Hyper-V enables four core scenarios: Server consolidation, business continuity, test and development, and dynamic datacenter. Combined with Microsoft System Center management suite, you can now have a complete and integrated server management solution that works with virtual machines and physical servers and helps extend the platform capabilities of Hyper-V.
Server consolidationOne of the leading drivers for adoption of virtualization technology is server consolidation. Businesses are under pressure to ease management and reduce costs while retaining and enhancing competitive advantages, such as flexibility, reliability, scalability, and security. The fundamental use of virtualization to help consolidate many servers on a single system while maintaining isolation helps address these demands. One of the main benefits of server consolidation is
lower TCO, not just from lowering hardware requirements but also from power and cooling costs and management costs. Another benefit is from
optimizing infrastructure, both from an asset utilization standpoint as well as the ability to balance workloads across different resources. A softer benefit of server consolidation is
improved flexibility of the overall environment and the ability to freely integrate 32-bit and 64-bit workloads in the same environment.
Business continuity and disaster recovery
Business continuity is the ability to minimize both scheduled and unscheduled downtime. That includes time lost to routine functions, such as maintenance and backup, as well as unanticipated outages. Hyper-V includes powerful business continuity features such as live backup and quick migration, enabling businesses to meet stringent uptime and response metrics.
Disaster recovery is a key component of business continuity. Natural disasters, malicious attacks, and even simple configuration problems like software conflicts can cripple services and applications until administrators resolve the problems and restore any backed up data. Leveraging the clustering capabilities of Windows Server 2008, Hyper-V now provides support for disaster recovery (DR) within IT environments and across datacenters using geographically dispersed clustering capabilities. Rapid and reliable disaster and business recovery helps ensure minimal data loss and powerful remote management capabilities.
Test and developmentTest and development are frequently the first business functions to take advantage of virtualization technology. Using virtual machines, development staffs can create and test a wide variety of scenarios in a safe, self-contained environment that accurately approximates the operation of physical servers and clients. Hyper-V maximizes utilization of test hardware, reducing costs, improving life cycle management, and improving test coverage. With extensive guest OS support and checkpoint features, Hyper-V provides a great platform for your test and development environments.
Dynamic datacenterHyper-V, together with your existing system management solutions, such as Microsoft System Center, helps realize the dynamic datacenter vision of providing self-managing dynamic systems and operational agility. With features like flexible resource control and quick migration, you can create a dynamic IT environment that leverages virtualization to not only respond to problems, but to anticipate increased demands.
Key Features of Windows Server 2008 Hyper-V
Hyper-V, the next-generation hypervisor-based server virtualization technology in Windows Server 2008, helps address many virtualization business challenges. You can now create virtual machines that can leverage available hardware, run multiple operating systems, and manage both virtual and physical resources using the same industry-standard tools.
Key Hyper-V features include:
New and improved architecture: New 64-bit micro-kernelized hypervisor architecture enables Hyper-V to provide a broad array of device support and improved performance and security.
Broad OS support: Broad support for simultaneously running different types of operating systems, including 32-bit and 64-bit systems across different server platforms, such as Windows and Linux.
SMP support: Ability to support up to 4 multiple processors (SMP) in a virtual machine environment to enable you to take full advantage of multi-threaded applications in a virtual machine.
Memory support: Support for large memory allocation per virtual machine enables you to now virtualize most workloads, making Hyper-V an ideal platform for both enterprises and small to medium businesses alike.
Improved storage access: With pass-through disk access and broad support for SAN and internal disk access, Hyper-V provides greater flexibility in configuring and utilizing storage environments optimally.
Network load balancing: With the new virtual service provider/virtual service client (VSP/VSC) architecture, Hyper-V provides improved performance and utilization of core resources such as disk, networking, video, etc.
New hardware sharing architecture: With the new virtual service provider/virtual service client (VSP/VSC) architecture, Hyper-V provides improved access and utilization of core resources such as disk, networking, video, etc.
Quick migration: Hyper-V enables you to rapidly migrate a running virtual machine from one physical host system to another with minimal downtime, leveraging familiar high-availability capabilities of Windows Server and System Center management tools.
Linux integration components: Beta Linux integration components are now available for SUSE Linux Enterprise Server 10 SP1 x86 and x64 Editions. These integration components enable Xen-enabled Linux to take advantage of the VSP/VSC architecture and provide improved performance. Beta Linux Integration components are available for immediate download through connect.microsoft.com.
Virtual machine snapshot: Hyper-V provides the ability to take snapshots of a running virtual machine so you can easily revert to a previous state and improve the overall backup and recoverability solution.
Scalability: With support for multiple processors and cores at the host level and improved memory access within virtual machines, you can now vertically scale your virtualization environment to support a large number of virtual machines within a given host and continue to leverage quick migration for scalability across multiple hosts.
Extensible: Standards-based Windows Management Instrumentation (WMI) interfaces and APIs in Hyper-V enable independent software vendors and developers to quickly build custom tools, utilities, and enhancements for the virtualization platform.
Quote From Microsoft.com