Desktop Virtualization (ii) Types and cases

There are users in the desktop virtualization-wonderful just started to leave a message, that many aspects did not say through. Desktop virtualization is a big issue, and we're going to start talking about it slowly. This article briefly introduces the definition of desktop virtualization, several applicable scenarios, and the choice of architecture design.

Defined:

Desktop Virtualizationis a technology that decouples a PC Desktop environment from a physical deviceso this virtual MA Chine (VM) of the PC desktop stored in a centralizedserver can is accessed from a remote client device through a network. There arevarious Desktop Virtualization technologies targeting different use cases, Suchas hosted virtual Desktop (HVD), L Ocal VM, streaming desktop and hosted Shareddesktop.

The above is Gartner's definition of desktop virtualization. This is a broad definition that is not limited to HVD (VDI), but also includes local virtual machines, shared desktops, streaming desktops, and so on.

Scenario One:

A large enterprise A has a perfect security policy, network design is more complex, in the production environment, any set of changes need to go through Changecontrol. The company recently acquired another small business, B. The business needs to be fully integrated within six months. This means that employees in a merged company can access the parent's mail, apps, and data, and follow current security policies. The traditional approach requires a great effort to evaluate Enterprise B's network and terminal environment, as well as a series of network changes to allow Enterprise B access to enterprise A's network. Imagine that enterprise a buys a lot of small companies like Company B every quarter. Then the traditional practice of the workload is very large, because each merged enterprise's IT environment is different, want to implement business integration in a short period of difficulty can imagine

Scenario Two:

A company has several call centers located in different cities, or even in other countries. There are a number of call center personnel, all using a unified application. The company also has a lot of short-term employees or partners who are more mobile and scattered in different places. These short-term people often want to use their own devices (BYOD) to access the company's data and applications.

Managing a large number of desktop environments across multiple locations is a challenge to ensure that desktop OS and its applications are upgraded to meet security and business requirements, and that short-term personnel can quickly and easily obtain the appropriate permissions and access to desktop and related applications.

Scenario Three:

There are several districts in a hospital that are located in different places. Health care personnel are highly demanding for mobile office, whether in office, ward or conference room, and want access to the appropriate procedures and data. Some doctors hope to have access to relevant applications and data at home.

The above three scenarios can also be used in traditional solutions, but may be time-consuming and ineffective and not necessarily good. If you adopt a reasonable desktop virtualization scenario, there will be significant results.

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Schema selection:

Here we start with two common architectures for desktop virtualization:

The HVD virtual machine is run on hypervisor. Each virtual machine is a virtual desktop. Users can bind to a virtual machine (dedicateddesktop), or they can get virtual machines randomly from a pool (pooleddesktop)

Dedicated desktop retains the user's changes to the settings, each time the user obtains the virtual machine. The pooleddesktop does not keep the user's changes after the user exits, and each time a user logs in, a new virtual machine is obtained.

Published Apps and shared Desktop do not need hypervisor to implement shared desktop or shared applications directly on the Serveros.

Because of the different needs of different users, there are cost considerations, many large enterprises often adopt a variety of architecture of the hybrid scheme.

So what kind of desktop virtualization architecture is best suited to the top three scenarios? Can you reply to this article and put forward your opinion?

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