Data backup and recovery using cache-coherent interconnect node-based non-volatile memory

Abstract

Systems and methods are provided for implementing data backup and recovery using cache-coherent interconnect node-based non-volatile memory. A cache-coherent interconnect node partitions a memory pool into a plurality of memory regions as well as a backup storage into a plurality of memory portions, and pre-allocates a memory region and a corresponding memory portion to each compute node. When a rack-level power loss occurs, and a battery-based power source is activated, a cache-coherent interconnect controller saves data from each memory region into the corresponding memory portion, and subsequently saves an entry for each memory portion in an index portion of the backup storage. Subsequently, the controller causes a power circuitry to shut down the backup power source. After rack-level power restoration and memory region initialization, the controller restores, for each memory region, the data saved in a corresponding memory portion into that memory region, based on information in a corresponding entry.