host virtual machine (host VM)

A host virtual machine is the server component of a virtual machine (VM), the underlying hardware that provides computing resources to support a particular guest virtual machine (guest VM).

A host virtual machine is the server component of a virtual machine (VM), the underlying hardware that provides computing resources to support a particular guest virtual machine (guest VM).

The host virtual machine and the guest virtual machine are the two components that make up a virtual machine. The guest VM is an independent instance of an operating system and associated software and information. The host VM is the hardware that provides it with computing resources such as processing power, memory, disk and network I/O (input/output), and so on.

A virtual machine monitor (VMM) or hypervisor intermediates between the host and guest VM, isolating individual guest VMs from one another and making it possible for a host to support multiple guests running different operating systems.  

A guest VM can exist on a single physical machine but is usually distributed across multiple hosts for load balancing.  A host VM, similarly, may exist as part of the resources of a single physical machine or as smaller parts of the resources of multiple physical machines.

 

See also: server virtualization, clustering, desktop virtualization, guest operating system, host operating system

This was first published in June 2011

Glossary

'host virtual machine (host VM)' is part of the:

View All Definitions

Dig Deeper on Introduction to virtualization and how-tos

PRO+

Content

Find more PRO+ content and other member only offers, here.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchVMware

SearchWindowsServer

SearchCloudComputing

SearchVirtualDesktop

  • VDI assessment guide

    Wait! Don't implement VDI technology until you know your goals and needs. A VDI assessment should consider the benefits of a VDI ...

  • Guide to calculating ROI from VDI

    Calculating ROI from VDI requires a solid VDI cost analysis. Consider ROI calculation models, storage costs and more to determine...

  • Keep the cost of VDI storage under control

    Layering, persona management tools and flash arrays help keep virtual desktop users happy and VDI storage costs down.

SearchDataCenter

Close