Online incremental backup and recovery method and application of local storage virtual machine

Abstract

The invention discloses an online incremental backup and recovery method and application of a local storage virtual machine. The method comprises the following steps: generating an incremental file and position information of a backup node of a virtual machine disk at the current moment through an external snapshot; sending the incremental file to a specified position of a backup server for storage according to the position information; and organizing incremental files of backup nodes of the virtual machine disk at each execution moment into a backup chain, and storing the backup chain in a database. According to the online incremental backup method for the local storage virtual machine, an incremental file and position information of a backup moment of a virtual machine disk can be generated through an external snapshot, and a backup chain presents a forest structure in a scene of diversified backup strategies, so that multi-scene incremental backup of the virtual machine disk is realized, and the disk space utilization rate and the backup efficiency of the system are effectively improved.

Description

technical field [0001] The invention relates to the computer field, in particular to a method and application for online incremental backup and recovery of a local storage virtual machine. Background technique [0002] With the expansion of the scale of the cloud platform, the cloud platform is facing these challenges: the soaring amount of cloud storage data, the increasing requirements of enterprises and individual users for the reliability of cloud platform data storage, and the problems existing in the current data storage backup management on the cloud platform and the challenges faced. [0003] Most of the existing virtual machine disk backups are backup and recovery with agents. It is necessary to install backup agent software in the virtual machine to realize the backup and recovery of the virtual machine disk data, which not only affects the performance of the virtual machine, but also cannot guarantee the security of the virtual machine data. sex. Virtual machine...

AI Technical Summary

Problems solved by technology

The traditional backup point management model takes the closest backup point of the virtual machine disk as the core, organizes the backup points into a linear structure according to the backup time and policy relationship, and manages them in groups in a single-chain manner. However, in practical applications, diverse The backup strategy makes backup points have various forms of association, that is, multi-chain association characteristics, which leads to the following problems in the traditional backup point management model: single backup chain management, historical time points need to be manually managed and archived; backup Recovery takes a long time, the automatic deletion strategy is not flexible enough, and the disk space utilization is low, etc.

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