WARNING THIS IS NEVER TO BE USED IN PRODUCTION AND CARRIES NO SUPPORT FROM MICROSOFT WHAT SO EVER!
With the upcoming release of Server 2012 R2 I am sure you are familiar of the new Storage Tiers that will become available!
However if you are not so lucky you will not be able to see it in action! even in a demo environment!
One thing I am personally really impressed with is there is a sneaky way to emulate drives so that storage tiers can emulate the results for you and you can build your environment!
Guess what this can be done from within a VM! even better
Storage Tiers looks at the mediatype associated with a physical disk. Using the Set-PhysicalDisk -Mediatype we can change this between SSD and HDD
Pretty cool eh!
So have fun and remember THIS IS NEVER EVER for production simply to play with and have some storage tier fun!