Device, system and method for data backup

A data backup and backup technology, which is applied in the direction of data error detection and response error generation, which can solve the problems of long data recovery time, unavailable data backup recovery time, and long data backup time. , to achieve the effect of short recovery time, excellent data backup or recovery comprehensive performance

Active Publication Date: 2015-12-02
CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in a full backup cycle, multiple incremental backups and / or differential backups are required. Since the existing backup method can only use one of incremental backup and differential backup in each full backup cycle, there is data backup The shortcoming of long time or data recovery time, it is impossible to flexibly adjust the data backup or recovery time according to the demand

Method used

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  • Device, system and method for data backup
  • Device, system and method for data backup
  • Device, system and method for data backup

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Embodiment Construction

[0034]Embodiments of the present invention provide a data backup device, system and method, which are used to dynamically adjust the time of data backup and recovery when computer equipment backs up or restores data, so as to meet different time requirements.

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0036] image 3 It is a schematic flow chart of backing up data according to an embodiment of the present invention. As shown in the figure, the following steps may be included in the data backup:

[0037] Step 301: The computer device uses the time interval T as a period to back...

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Abstract

The invention discloses equipment, a system and a method for data backup. The method for data backup comprises the steps: by taking a time interval T as a period, computer equipment is used for backing data up on an external storage device by adopting a first backup method; by taking a characteristic tag of the first backup method as an input value, the computer equipment is used for generating a sequence by using a sequence generating algorithm, wherein the sequence is formed by two elements of different states and is M in length; during the period T of the first backup method, by taking a time interval t as a period, the computer equipment is used for backing the data up on the external storage device respectively by adopting a second backup method and / or a third backup method according to the two elements of different states of the sequence, wherein M is greater than or equal to 1 and is an integer; when mod (T, t)=0, M=(T / t)-1; when mod (T, t) is larger than 0, M=[T / t].

Description

technical field [0001] The invention relates to the field of computer data storage and processing, in particular to a computer data backup device, system and method. Background technique [0002] Data backup is the basis of disaster recovery, which refers to the process of copying all or part of the data set from the hard disk or array of the application host to other storage media in order to prevent data loss caused by system operation errors or system failures. Data backup is particularly important for enterprises. In the case of data loss caused by equipment failure or irreparable data due to operation errors, the original data can be restored completely, quickly, simply and reliably through the backed up data. [0003] Currently, there are three commonly used data backup methods: [0004] (1) Full backup (FullBackup) [0005] A full backup refers to a complete copy of all data or applications at a certain point in time. Backs up all selected folders and does not rely...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
Inventor 张文健朱晨鸣黄毅房磊张云帆乔爱锋
Owner CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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