Data backup method, data recovery method, system and device and storage medium

Abstract

The invention discloses a data backup method which is used for solving the problems that when an existing backup method is adopted for data backup, due to the fact that a centralized framework is adopted, a data backup system is poor in expandability, under the condition of facing a large number of data backup tasks, the performance bottleneck is extremely easy to reach, the backup task execution success rate is low, and the data backup efficiency is high. Therefore, the normal operation of the production system is influenced, and great hidden dangers are brought to the safe operation of the whole production system. The method comprises the steps that a data backup server receives a backup file information table uploaded by a backup client; wherein the backup file information table carries a backup file name, the number of backup file blocks and a block name corresponding to each block of the backup file; determining a backup task allocation strategy according to the backup file information table; wherein the backup task distribution strategy is used for determining a block name corresponding to each backup node; and calling at least two backup nodes for data backup according to the backup task distribution strategy.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular, to a data backup method, a data recovery method, a system, an apparatus, and a storage medium. Background technique [0002] Backup technology is an important measure in the field of computer systems to prevent data loss and damage caused by software and hardware failures, human events, malicious tampering, hacker attacks, viruses, force majeure and other factors, and to ensure the continuous operation of computer systems. It is the core of disaster prevention and mitigation. The purpose is to protect the continuity of business systems after a disaster and minimize unplanned downtime. [0003] Backup technology is to create a data copy of the original data and store the data copy separately to ensure that there is a copy of the data that can be restored when the original data fails. Backups are the last barrier to protecting data and are essential for any IT organi...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a data backup method to solve the problem of poor scalability of the data backup system due to the adoption of a centralized architecture when using the existing backup method for data backup. In the case of a large number of data backup tasks, It is very easy to reach the performance bottleneck, resulting in a low success rate of backup tasks, which affects the normal operation of the production system and brings great hidden dangers to the safe operation of the entire production system

[0008] The embodiment of the present application also provides a data recovery method to solve the problem of poor scalability of the data backup system due to the adoption of the centralized architecture when using the existing backup method for data recovery. In the case of a large number of data backup tasks , it is very easy to reach the performance bottleneck, resulting in a low success rate of backup task execution, which affects the normal operation of the production system and brings great hidden dangers to the safe operation of the entire production system

[0009] The embodiment of the present application also provides a data backup system to solve the problem of poor scalability of the data backup system due to the adoption of a centralized architecture when using the existing backup method for data backup. In the case of a large number of data backup tasks , it is very easy to reach the performance bottleneck, resulting in a low success rate of backup task execution, which affects the normal operation of the production system and brings great hidden dangers to the safe operation of the entire production system

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