NVMe and NVMeoF
Western Digital has NVMe as well.
(Yes throw darts if needed but Tegile does provide an NVMe platform)
D5 was well a great start for what should have been the follow-on D2 product. (moment of silence for the death of good ideas). It was however a great specific product that delivered performance. We did sell a number of them to many customers, TACC makes extensive use of them today. I think, as soon as Chad S. started talking about it is when it really started to go down hill.
Then Mike (I would shutdown Apple) Dell got his hands on it, well nothing new has come from Dell. Hell they still sell the same C-Class Blade chassis they stole from HP.