Unified Memory and Storage Access over Computer Express Link Fabric

A method, comprising:

• connecting, from a computer express link fabric, to a plurality of memory devices and at least one memory sub-system, each of the plurality of memory devices and the at least one memory sub-system connected to the computer express link fabric by a separate computer express link connection;
• receiving, in the computer express link fabric, memory access requests configured with memory addresses in a mapped memory space;
• mapping, by the computer express link fabric, the memory addresses in the mapped memory space to physical addresses of random access memory cells in the plurality of memory devices;
• routing, by the computer express link fabric based on the mapping, the memory access requests to the plurality of memory devices;
• and
• implementing, by the computer express link fabric and in non-volatile memory cells in the at least one memory sub-system, a persistent copy of data stored by the memory access requests.