virtual desktop infrastructure risks

What kind of risks are there when virtual desktop infrastructure is not available. i am struggling to get my head around the concept. When a production database server or application server goes down the risks are obvious, but I am trying to get my head around the issues when VDI goes down, is not available. Rarely do users save data to their physical or virtual desktop, can anyone assist or give a view? Why is desktop infrastructure so essential? Perhaps not being able to login to the network at all?
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pma111Asked:
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jhyieslaConnect With a Mentor Commented:
A virtual desktop can have whatever you want it to have. In the Vmware world there are two most commonly used concepts: linked clones and persistent desktops. A persistent desktop is pretty much just a full desktop just like a real computer that is typically assigned to a person. A linked clone is typically considered shared resources. Not that each user's profile is shared or anything, but - at least in my world, when a user signs off that desktop it gets refreshed immediately and taken back to it's default state, ready for the next user. We use personna management to give the user a "roaming" profile in the VDI world and encourage all users to save their data on their shared network drive.

On our linked clones we typically install the programs that everyone will need, like Office and a few other programs. If we can, we thinapp a program and share it across the network from a server by putting an icon on the desktop - real or virtual - that points to that program. We also create separate pools if we have users who need unique programs that most others do not and we don't want to thinapp, or can't, the programs.
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
If the connection to the

1. datacenter fails
2. hosting server fails

nobody can work.

All user data does not leave the datacenter, so is not saved locally to desktops, and they do not have desktops, it's common to have thin clients, with no local storage.

So it's important to ensure that the Design and Implementation is "designed to fail".
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pma111Author Commented:
What is typically on a virtual desktop
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pma111Author Commented:
Ie on traditional desktop pcs you have storage and software
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
A virtual desktop contains the same items as your physical desktop, in your computer!

You have storage and software on your typical virtual desktop.

other than you access it remotely via Internet, LAN or cable!
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