John, The non Dell SSD drives should work as long as they are detected and functional. Also there is a limit of 512GB for cachecade.
I was wondering if anyone has successfully got cachecade working with a non dell ssd. The dell docs say it must be a certified dell ssd drive (but paying £1000 for a 100gb ssd seems excessive to me). This guy [URL] says he's done it so wondered if anyone else had tried it. I know that dell changed the firmware on these to allow non dell drives in normal use, have they backed down over cachecade as well?  Thanks
H700 (or H710) CacheCade and non dell ssds