What is VDI?

What is VDI?

VDI is Virtual Desktop Infrastructure.

In order to understand VDI, you need to understand what ‘virtual desktops’ are. Virtual Desktops are not real desktops but who cares? You don’t need to if you are an end user.

What i mean by that is, you interact with your virtual desktops just like the way you interact with real desktops. Nothing changes. Nothing.

Let us take an example.Assume that you are using your Windows XP/Vista desktop with all your favorite applications like Yahoo messenger, Photoshop, MS excel, PowerPoint etc….You also have picture of your dog as the wallpaper. This is the desktop you use at home.You love your desktop and you are so familiar and accustomed to it. You don’t want to change it because it works for you and it is very personal.

Imagine this desktop is accessible to you everywhere. ie..an omnipresent desktop. You can access your applications and data from a friend’s place, local bar, your in-law’s house, office or a different country altogether.This is possible through virtualization and virtual desktop infrastructure. Ubiquity of access is just one of the feature of VDI. There are numerous others like security, cost, backup etc..

From an end user’s perspective, nothing changes in terms of his interaction with his desktop. He just needs to login to the network and his desktop is click away. His desktop gets streamed to him wherever he is and whenever he needs it.He can always save the changes he make; his preferences of applications, and all the other desktop settings remain intact.The difference lies in the system administrator’s job.Desktops are no more deployed.They are hosted and delivered.The user has an individual virtual desktop on the server elsewhere and they are allotted to him as and when they are needed. These desktops are streamed over the network and user gets his desktop irrespective of his physical location.

The obvious constraint to this technology is that desktops always need to be connected to the network.With the increasing adoption of broadband and companies working on caching and offline technologies, this issue sure to be mitigated to a large extent.

If you find the whole idea confusing, foggy and abstract, don’t worry; you are not alone. This is a whole new technological shift.This trend is not an evolutionary or an incremental change in application and desktop computing but it is a radical shift.

I am also eagerly waiting to see the how the story will unfold and in the coming days, i will keep you posted on the intricacies and developments in this area.
See you.

Thanks,

Arun.PC

 

 

 

 

 

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6 thoughts on “What is VDI?

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  1. Arun,

    VDI has been in existence for more than 3 years now… I remember deploying VMWARE Servers and create Virtual Desktops for end users… VDI is a very cost effective way of deploying Desktop infrastructure if you have end users all across the globe… You can run minimum 10 virtual desktops all running different OS using one single console…. VDI is fun and organizations should adopt it more when it comes to offshore developers and end users….

    Nice post BTW…. keep updating it

  2. Hey Silvester,

    You got 2 points spot on.
    1) Global end users
    2) Cost effective

    VDI for 10 users is first generation virtualization solution. Here the company assembles all the components like Hypervisor, brokering agent, load balancer and then builds a composite solution. It is pretty tedious and the management overhead is also pretty huge.

    The VDI solution i am talking about is one full fledged solution which is easy to setup, easy to scale, easy to manage and that which has an intelligent load balancer.

    An ideal VDI solution would scale to thousands of users, each desktop supporting 100s of applications and would have have offline capabilities when they are not connected to the network.

    The technology is not there yet but it is just a matter of time that we get there.

    Thanks for your post!!!!!!!!!

    Arun.PC

    1. Thanks Ana. VDI is NOT JUST remote desktop access. VDI is a way to provide remote desktop access. Though there are other ways like Terminal Services, Citrix XenApp, Streaming and other Server based computing methods.

      Thanks, hope it helps.

      Arun.P.C

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