The Benefits
Each user connected to the main image will have exactly the same operating system and applications. This reduces the amount of time required to individually install applications on each PC. This could also reduce costs.
By updating the main image with the latest security updates, you can be sure that every attached PC will also be protected.
As there is only one main system, if a problem arises, only one system will have to be analysed and fixed, as apposed to analysing a number of different computers.
A VDI allows you to support a number of computers or mobile devices anywhere in the world from one main server or data centre. This means you don’t have to have all of your systems in one small area. You can even work remotely if necessary. Plus, you’ll have high bandwidth networking and high performance storage.
The Disadvantages
If an individual requires different applications from the other users, they will require a completely different image, without changing the applications for other users.
A substantial initial outlay is required for the main server hardware, storage and network infrastructure. This might no be feasible for some smaller businesses.
Administrators, savvy to the limitations, problem solving and installation of VDIs will either have to be brought in or existing IT staff given the relevant training.
If a problem occurs, this will generally affect all users, rather than being able to isolate problems if operating systems run off individual PCs.