SCM-based cache data protection method and system

Abstract

The invention provides an SCM-based cache data protection method and system, and the method comprises the steps: monitoring the operation state of a server power supply, and controlling an independentpower supply module to supply power to a register system if the operation state is monitored to be abnormal; and enabling the register system to verify the cache data, and store the cache data passing the verification and the verification information to the SCM power-down storage module. According to the method, efficient utilization of the SCM can be achieved, high reliability of the system is guaranteed, the data processing capacity and the storage efficiency are greatly improved, self error correction can be achieved during data recovery, and high fault tolerance and recovery capacity areachieved.

Description

technical field [0001] The invention belongs to the technical field of servers, and in particular relates to an SCM-based cache data protection method and system. Background technique [0002] SCM memory technology, the full name is Storage-class Memory, that is, storage-class memory. As we all know, in the traditional computer architecture, the memory architecture is hierarchical. Typically, the storage system of a computer system consists of CPU register memory-cache (cache), off-chip main memory (DRAM), and disk (disk). In order to ensure the balance between data security, usage rate, and usage cost, some caches are made into three layers, while others are made into two layers. [0003] Because high-speed storage usually means higher prices, before the emergence of SCM technology, various hardware manufacturers and storage manufacturers made a trade-off on the cache. The peripheral registers of the CPU are the closest to the CPU, and when the CPU is running at a high l...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, although SCM is applied to the server to replace the cache, on the existing system architecture, SCM is not used to replace the DRAM architecture, and the efficient utilization of SCM has not been realized; only the data in the disk cache area can be saved, and CPUCache and DRAM The internal data is not protected; when the disk cache is reserved, the SCM memory is not utilized, and the efficiency of data processing and storage is low; the protected data is not checked and backed up, and there may be data errors when the data is restored

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