The end of the DAX experiment

I think that it’s not an emulator in any respect. It’s not like Optane is somehow the real thing and battery-backed DRAM is pretending. The battery approach was also first.

In some sense, Optane is an emulator. The DIMM protocol was designed to model the way that DRAM works. I assume that Optane goes a bit out of its way to speak the same protocol.