Data backup method and system, storage medium and equipment

Abstract

The invention provides a data backup method and system, a storage medium and equipment. The method comprises the following steps: storing data in a plurality of first memories under a first PCIe Switch; respectively recording the data access frequency of each first memory, and judging whether the data access frequency of the first memory reaches a preset threshold value or not; starting a second PCIeSwitch and a second memory corresponding to the first memory under the second PCIeSwitch in response to the situation that the data access frequency of the first memory reaches a preset threshold value; backing up the data in the first memory to a corresponding second memory, and confirming whether the data is successfully backed up or not; and in response to successful backup, closing the second memory and the second PCIe Switch. According to the method and the device, the second memory for data backup is placed under the second PCIe Switch and is distinguished from the first PCIe Switch of the first memory for data access, so that the second PCIe Switch is opened when in use and closed when not in use, and the power consumption of the PCIe Switch can be reduced under the condition that the data backup function is met.

Description

technical field [0001] The invention relates to the technical field of PCIe, in particular to a data backup method, system, storage medium and equipment. Background technique [0002] Nowadays, due to the finer and finer resolution of audio and video, the quantity and capacity of file data are also increasing, so the demand for storage devices is increasing day by day. NVMe is currently the main product of storage devices on the market, and NVMe applications can be seen everywhere in the products launched by major server manufacturers. Usually, the PCIe bus is used to connect NVMe to the CPU, but each CPU has a limited number of PCIe Root ports (PCIe root ports). If only the CPU PCIe Root port is used to connect to NVMe, the total storage capacity of the entire system will be affected by the CPU PCIe root port. The limit on the number of ports. In order to expand the total storage capacity, a common way is to expand more PCIe Root Ports by connecting multiple PCIe Switches...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to propose a data backup method, system, storage medium and equipment to solve the problem of increasing power consumption while using PCIe Switch and storage devices to increase storage capacity for data backup in the prior art

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