It’s worth pointing out that almost all the "magic" that has been developed around flash was already scoped out in 2007. It just takes a while for a whole new industry to mature. Individual die capacity increased, meaning fewer die are needed for a solution – and that means less parallel bandwidth for data transfer…

What is the #1 Real Problem for many large scale mega datacenters? It’s something you’ve probably never heard about, and probably have not even thought about. It’s called false disk failure. Some mega datacenters have crafted their own solutions – but most have not.