In this paper we have explained how storage class memory came to be, and have detailed the criteria that will lead to its eventual adoption: That it must be faster than SSDs and less costly than DRAM memory. SCM’s persistence (the fact that data remains intact even in the absence of power) was then addressed, with an explanation of how persistent memory can bypass many of the delays in database systems that are designed to assure data integrity whether or not consistent power is available. Persistence is a highly-desirable attribute, but little of today’s commercially-available software can support persistent memory. Industry standards have recently been defined to help developers create SCM-aware software, and this will open other significant opportunities for SCM in the future.
RMBS & IBM have been working on hybrid memory for three years.
NLST is no Johnny Come Lately. Article dated August 2016