GreenBytes and VDI
So, there are quite a few questions to answer and things to think about from your comment - but I'll try to address as many as possible. The first thing to keep in mind is that there are three traditional things that IT admins have to keep in mind when thinking of deploying VDI - Cost / Performance / and Personalization. As it goes, generally, you can get two of the three. Linked clones will allow you to have low cost and pretty good performance as there won't be a whole lot of flash needed to host them, but your users will be unhappy when they lose their applications and personalization during every golden image refresh - sure you can add profile management to the mix, but the increase of management time adds to the cost. Traditional full clones allow you to have great performance and full personalization of the desktops, but at a cost - lots of fast storage is needed to hold all that data. With GreenBytes, you can have all three. By using GreenBytes' vIO (virtual storage appliance) or IO Offload Engine to deduplicate the desktops using our patented zero latency inline deduplication engine, you can take up the space of linked clones (low cost), provide fully persistent desktops (high personalization), and still allow your users' desktops to be ready in seconds (great performance).
Now, some vendors like Nimble, Tintri, and NetApp offer hybrid solutions (Spinning Disk + SSD) to try to get the price/performance ratio in line - but, frankly, the performance is still less than GreenBytes, and the price ends up being higher. The View VSA doesn't offer anything to you other than allowing you to use internal storage on your servers as a "NAS," and PVS is simply linked clones.
Good luck with your VDI deployment!