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hypervisor

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- A hypervisor, also called a virtual machine manager, is a program that allows multiple operating systems to share a single hardware host. Each operating system appears to have the host's processor, memory, and other resources all to itself. However, the hypervisor is actually controlling the host processor and resources, allocating what is needed to each operating system in turn and making sure that the guest operating systems (called virtual mahines) cannot disrupt each other.

Learn about bare metal, native, embedded and host hypervisors.

Getting started with hypervisors

To explore how hypervisors are used in the enterprise, here is an additional resource:

Microsoft Hyper-V Guide

Learn more about Introduction to virtualization and how-tos

Understanding the benefits of a virtual machine: Virtual machines offer many benefits: server consolidation, increased utilization and faster recovery times after failure.
vSphere and vCenter licensing and pricing explained -- a VMWare license guide: VMware vSphere 4 and vCenter Server is priced and licensed in various ways, depending on the size of the environment and the required functionality.
Citrix XenServer licensing, pricing explained: Citrix Systems prices, licenses and supports XenServer differently from VMware's pricing scheme for vSphere and Microsoft's for Hyper-V.
Installing Hyper-V in Windows Server 2008: This section of our guide on installing Hyper-V in Windows Server 2008 explains the Hyper-V role in Windows Server 2008 and helps you get started with Hyper-V management.
Understanding VMware ESX features: An expert outlines VMware ESX features and ESX hardware compatibility and installation concerns.
Rick Vanover, Alliance Data: Rick Vanover of Alliance Data is a member of the Server Virtualization Advisory Board.
Dave Sobel, Evolve Technologies: Dave Sobel of Evolve Technologies is a member of the Server Virtualization Advisory Board.
Shannon Snowden, New Age Technologies: Shannon Snowden of New Age Technologies is a member of the Server Virtualization Advisory Board.
Eric Siebert, Boston Market: Eric Siebert of Boston Market is a member of the Server Virtualization Advisory Board.
Greg Shields, Concentrated Technology: Greg Shields of Concentrated Technology is a member of the Server Virtualization Advisory Board.

LAST UPDATED:

21 Jun 2009

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More resources from around the web:

-	IBM's Research Hypervisor is used to test virtualization features in new hardware architectures.
-	"Xen and the Art of Virtualization" is a white paper about the Xen hypervisor.
-	Microsoft says that Windows Server 2008 Hyper-V is the next-generation hypervisor-based server virtualization technology.
-	Virtualization and the hypervisor: Techtarget Roundup

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