Desktop virtualization is the concept of separating a personal computer desktop environment from the physical machine through a client-server computing model. The resulting "virtualized" desktop is stored on a remote central server, instead of on the local storage of a remote client; thus, when users work from their remote desktop client, all of the programs, applications, processes, and data used are kept and run centrally, allowing users to access their desktops on any capable device, such as a traditional personal computer, notebook computer, smartphone, or thin client. Virtual desktop infrastructure (VDI) is the server computing model enabling desktop virtualization, encompassing the hardware and software systems required to support the virtualized environment.
Desktop virtualization is encapsulating and delivering either access to an entire information system environment or the environment itself to a remote client device. The client device may be based upon an entirely different hardware architecture than that used by the projected desktop environment, and may also be based upon an entirely different operating system. The desktop virtualization model allows the use of virtual machines to let multiple network subscribers maintain individualized desktops on a single, centrally located computer or server. The central machine may be at a residence, business, or data center. Users may be geographically scattered, but all may be connected to the central machine by a local area network, wide area network, or via the public Internet.
A simple use for desktop virtualization is remote administration where the controlling computer will work almost the same as on a duplicate desktop, except that the actions of the controlling computer may be almost unnoticeable on the remote computer display. This is different than a simple remote desktop software in that several people can use the same computer at once, without disturbing each others' work. This could be useful for several administrators doing different tasks on the same server. It can also be used for using hardware attached to the controlled computer, without disturbing a person who may already be using the computer. However, a major use is for spreading the resources of one machine to several users. In some cases it is cheaper to buy one large computer or server, and several thin clients or dumb terminals, than purchasing a complete computer for each workstation. The controlling thin client computers only need to be powerful enough to run the remote controlling software, therefore it can be a very simple and cheap computer. When one uses such a "thin client" or "dumb terminal", they may not even know that their software is actually running on another computer. If one already has enough computers, but they are not powerful enough, only one new computer may be needed, and the old ones used as thin clients.
The shared resources model inherent in desktop virtualization offers advantages over the traditional model, in which every computer operates as a completely self contained unit with its own operating system, peripherals, and application programs. Overall hardware expenses may be reduced as resources can be shared and allocated to users on an as-needed basis. The integrity of user information is improved because all data can be maintained and backed up in the data center. Other potential advantages include:
* Simpler provisioning of new desktops
* Reduced downtime in the event of server or client hardware failures
* Lower cost of new application deployment
* Desktop image management capabilities
* Longer refresh cycle for client desktop infrastructure
* Secure remote access to the enterprise desktop environment
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Hosted virtual desktops
Hosted virtual desktops are desktop virtualization services provided through an outsourced, hosted subscription model. Hosted virtual desktop services generally include a managed desktop client operating system configuration. Security may be physical, through a local storage area network, or virtual through data center policies. Transferring information technology infrastructure to an outsourced model shifts accounting for the associated costs from capital expenses to operating expenses.
Savecore can offer hosted virtual desktops thru our hosting partner.
According to a report by Gartner, hosted services accounted for more than 500,000 desktop units as of March 2009, but will grow to 49 million desktop units by 2013, and may make up as much as 40% of the worldwide professional personal computer market by revenue. Let Savecore guide you to the best fitted virtual desktop solution!