Cloud storage data backup method and device, equipment and medium

Abstract

The invention discloses a cloud storage data backup method and device, equipment and a medium. The method comprises the steps of: determining the file size and the file name of a to-be-backed-up filematched with backup parameters in at least two source end cloud direct storage virtual nodes and a source end cloud direct storage virtual node and a source end data block to which the to-be-backed-upfile belongs according to the backup parameters; locking each source end data block storing the to-be-backed-up file, indicating the target end cloud storage device to create a file with the same name and the same size according to the file size and the file name, and allocating a target cloud direct storage virtual node and a target data block; and sending each source end data block to the target end cloud storage device in parallel so as to write each source end data block into the target data block. According to the invention, the backup structure during file data backup is simplified, parallel backup can be realized based on the cloud direct storage virtual node, the performance and efficiency of file data backup are improved, the file can be locked, the file consistency is ensured, and the file backup process is optimized.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of data backup, and in particular, to a backup method, device, device, and medium for cloud storage data. Background technique [0002] When the video surveillance system is combined with the cloud storage system, the monitoring equipment in the video surveillance system (such as front-end cameras and back-end hard disk recorders, etc.) will store the generated multimedia files (such as video files or picture files) in the cloud storage system on the cloud direct virtual (Cloud Direct Virtual, CDV for short) node. [0003] In the actual application process, in order to prevent the loss of multimedia files caused by system operation errors or system failures, files stored in a cloud storage system (that is, the source cloud storage system) are usually copied to other storage media (such as another cloud storage system) , that is, in the target cloud storage system, etc.), to realize the...

AI Technical Summary

Problems solved by technology

[0004] However, in the above method, due to the chronological property of multimedia files, the backup server can only read data from one CDV node in the source cloud storage system at each moment, resulting in slow file backup and long time, and traditional file backup Snapshots are used to ensure file consistency during backup, and multimedia files are time-ordered, so files are fully overwritten during file backup, resulting in file inconsistencies

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