Domestic Feiteng server supporting NVDIMM and data protection method

Abstract

The invention discloses a domestic Feiteng server supporting an NVDIMM and a data protection method. The server comprises a CPU, an NVDIMM memory module, a battery standby power unit, a PCIE bridge piece and an NVMe SSD module. The CPU is connected with the NVDIMM memory module, the NVDIMM memory module is connected with the battery standby power unit, the CPU is further connected with the PCIE bridge piece, and the PCIE bridge piece is connected with the NVMe SSD module. The data protection method comprises the following steps of S1, detecting an abnormal power failure signal in real time; S2, sending an interruption signal to the CPU; S3, using the CPU to start an interruption service program and execute the data backup; S4, after the domestic Feiteng server is powered on, executing the data restoration; and S5, using the CPU to normally read and write the NVDIMM data memory module. According to the invention, based on a domestic Feiteng platform, the NVDIMM memory module and the NVMe SSD module are adopted as nonvolatile storage, and the abnormal power failure is interrupted through a CPLD module and an LPC interface of the CPU, so that the IOPS performance of the domestic server is greatly improved, and the data is protected under the condition of abnormal power failure.

Description

technical field [0001] The invention relates to the field of computer storage, in particular to a domestically produced Feiteng server supporting NVDIMM and a data protection method. Background technique [0002] In order to reduce the number of reads and writes to the disk, a disk cache is used to improve the I / O efficiency of the disk. Disk cache means that the downloaded data is first saved in the memory space allocated by the system for the software (this memory space is called the "memory pool"). When the data saved in the memory pool reaches a certain level, the data will be saved. To the hard disk, this can reduce the actual disk operations, effectively protect the disk from damage caused by repeated read and write operations, and improve disk I / O efficiency. However, the existence of the disk cache brings problems to the consistency of data access, especially the write cache using the write-back strategy. In the case of abnormal power failure, the updated data in th...

AI Technical Summary

Problems solved by technology

[0004] However, in the domestic Feiteng platform, the CPU does not have a dedicated external interrupt, so it does not support NVDIMM data protection in the case of abnormal power failure. How to apply NVDIMM to the domestic Feiteng platform and provide data protection in the case of abnormal power failure has become a need solved problem

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