As we all know, a single image management solution is extremely important in the VDI world. We will have hundreds or thousands of desktops that must be built and maintained. Image management is even more important when we have stateless desktops because we want our desktop to be reset to its original state after each user session. If you are doing stateless desktops without some form of image management in order to keep the desktops identical on initial startup, people would think you are crazy (and I think you would be).
What about RDS-based (session virtualization) implementations? I don’t hear much discussion on the need for image management with session virtualization. Is it because it is simply a common sense requirement that everyone already does or is it because people believe that you can get by without it?
Just in case it’s the latter, that’s take a trip in the “Wayback machine” (sorry, just saw Mr. Peabody and Sherman with my kids) to the 1990s and remember the world of WinFrame and MetaFrame and a world without single image management. We would build MetaFrame servers with Ghost, automated scripts and other deployment tools. They worked great. They let us build servers without having to sit in front of a screen all day hitting Next, Next, Next and did I mention Next. Deployment was easy. And then, a week or two later, you would start to hear the user complaints…
My app worked correctly yesterday, but it doesn’t today
Why is this different than it was yesterday?
Where did my add-on go?
This sucks. I hate it.
It all came down to a single reason, although our servers were built identically, they start to take on a unique persona once the server is turned on. And when users start connecting and doing things (work), the servers change more and more. Eventually, you begin to hear the users and life is no longer good if you are the IT Admin.
This was a major issue for every organization, which is why we have Provisioning Services. Regardless if your server is physical or virtual, they will be identical because Provisioning Services delivers a single image to every target. And Provisioning Services makes sure those targets remain consistent because on startup, each target starts at a clean state.
There are also some organizations that will want to extend their session virtualization environment to include VDI desktops. It only makes sense that your enterprise image management solution should be able to handle physical and virtual VDI, physical and virtual RDS and any other combination.
Before single image management solutions like Provisioning Services and Machine Creation Services came around, a user’s computing workspace was like a box of chocolates, you never knew what you were going to get.
Virtual Feller’s virtual thoughts