Continuous data protection method based on continuous snapshots

Abstract

The invention provides a continuous data protection method based on continuous snapshots and a system. A disk or a copy of a logic storage unit can be acquired by snapshots, and a plurality of copiesof disk can be continuously acquired by snapshots so as to realize continuous protection on data. The storage unit can be restored to the previous state by rollback snapshots, or a new logic disk canbe generated by cloning snapshots for user mounting. By continuously storing the state of a storage tank through automatic snapshot technology, continuous protection on data can be realized; when an accident happens, normal system and data state can be rolled back rapidly, and data error caused by soft disasters such as incorrect manipulation, virus attack and the like can be avoided by selectingvalid historical state point data.

Description

technical field [0001] The invention relates to the computer field, in particular to a method for continuous data protection based on continuous snapshots. Background technique [0002] The 21st century is an information age, and electronic information is gradually replacing paper as the most important data storage method. Informatization has also gradually become an important part of core competitiveness from being a support for core competitiveness. For an enterprise, the security of network data is extremely important. Once important data is damaged or lost, it will have a significant impact on the daily production of the enterprise, and even cause irreparable losses. [0003] The reasons for the destruction of disk data mainly include the following aspects: 1) Natural disasters, such as floods, fires, lightning strikes, earthquakes, etc., cause damage to the computer system, resulting in the destruction or complete loss of stored data; 2) System administrators and maint...

AI Technical Summary

Problems solved by technology

For an enterprise, the security of network data is extremely important. Once important data is damaged or lost, it will have a significant impact on the daily production of the enterprise, and even irreparable losses

[0003] The reasons for the destruction of disk data mainly include the following aspects: 1) Natural disasters, such as floods, fires, lightning strikes, earthquakes, etc., cause damage to the computer system, resulting in the destruction or complete loss of stored data; 2) System administrators and maintenance Misoperation of personnel; 3) Computer equipment failure, including aging and failure of storage media; 4) Data destruction caused by virus infection; 5) Intrusion of "hackers" on the Internet and intentional destruction from intranets

In order to avoid irreparable losses caused by data loss when a problem occurs, the backup method is mainly used for data protection at present.

[0004] The traditional backup of a single copy once a day or multiple times a day can only protect the data of the previous day or several hours ago, and cannot eliminate data errors caused by soft disasters such as "misoperation and virus attack"

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