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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.
Xen vs. KVM Linux virtualization hypervisors: Which side wins in the Xen vs. KVM Linux virtualization hypervisor debate? Two IT experts weigh-in with their Xen-KVM comparisons.
Virtualization capacity planning strategy guide: Has a lack of strategic capacity planning taken a toll on your virtual servers' performance? This guide covers tools, tasks and best practices for virtual server capacity planning.
Scenarios for implementing virtualization: By balancing infrastructure, managers can maximize return on their virtualization investment. Several implementation scenarios demonstrate best practices for virtualization.
Virtual environments are different from physical environments: The greater density, complexity and automation provided by virtualization also create challenges for managers.
Best practices in implementing virtualization: These virtualization best practices can help managers make the most of OS, application and server virtualization.

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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