Sales Engineer is a great job!
I think what you meant to say above was that Nimble does not have a FLASH ONLY device -which is true. We think keeping snapshots on the most expensive storage possible is not an awesome idea when they can be kept more efficiently on big, fat, cheap 7200 RPM platters. To a large degree, the same should be said of any data not currently "hot for the application"
Most of the rest of the comments are vitriolic and maybe bit confusing - ONTAP and WAFL handle data very well, but the basic file system underpinnings are built for spinning media. To change those parameters would not be trivial, and they could easily turn into tremendous potential for data loss to migrate to a flash optimized architecture. After all the 7-mode/C-mode pain, do your think your customers would welcome another "All we have to do is reinitialize the array" story.?
Then again, you may be right. EMC still seems to selling XTremeIO after all...
But if you think that E-series and flash only is the way to go, you might want to Google "Nimble Adaptive Flash Challenge". Nimble will give your customers and prospects an Apple Watch just to evaluate our Adaptive Flash approach side by side against ANY Flash Only player.
And in closing, I never meant to imply that you or anyone at NTAP were scared - I just said that I would not want to be in your position. Offer is open if you;re in the Bay Area and want to learn more about Nimble. I'll even buy lunch - I have been eating yours quite a bit lately.