Data backup method and system

A data backup and data block technology, which is applied in the direction of data error detection and response error generation in electrical digital data processing and calculation, can solve the problem of data backup occupying storage resources and reduce storage space expenses , Reduce storage resource expenses, improve disaster recovery security and confidentiality security

Pending Publication Date: 2020-09-18
JIANGSU SUPERFLUIDITY INFORMATION TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] The embodiment of the present invention provides a data backup method and system to solve t

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  • Data backup method and system

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relatio...

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Abstract

The invention relates to the field of data disaster tolerance and cloud storage, and provides a data backup method and system. The method comprises the steps: sequentially carrying out the repeated erasure code coding of to-be-backed-up data, and generating a plurality of data blocks with corresponding levels according to the frequency of the erasure code coding; respectively storing the pluralityof data blocks in different storage nodes; wherein an erasure code matrix adopted during erasure code encoding processing is a column full-rank matrix, and the erasure code matrix is stored in the storage node so as to be called when the to-be-backed-up data needs to be recovered. According to the method and the system, the erasure code encoding processing is sequentially executed on the to-be-backed-up data for multiple times, so that the storage resource expenditure of the storage node can be reduced; and moreover, the plurality of data blocks are separately stored in different storage nodes, so that the storage space expenditure required by a single storage node is reduced, and the disaster tolerance safety and confidentiality safety of data storage are improved.

Description

technical field [0001] The invention relates to data disaster recovery and cloud storage technology, in particular to a data backup method and system. Background technique [0002] With the wide application of information systems, data disaster backup and recovery of information systems has become particularly important. The data disaster of the information system refers to the serious failure or paralysis of the information system due to man-made or natural reasons, and the business functions supported by the information system are suspended or the service level is unacceptable. Data disaster recovery refers to recovering an information system from a faulty or paralyzed state caused by a data disaster to a normal operating state. For disaster recovery, the primary task is to restore data. [0003] At present, the common data disaster backup system mainly adopts the mirror backup method of multi-data centers in different places, and completely stores the mirror copies of th...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F21/78G06F11/10
CPCG06F11/1461G06F21/78G06F11/1044
Inventor 郑维吕川张晓星
Owner JIANGSU SUPERFLUIDITY INFORMATION TECH CO LTD
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