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File differential backup system and method

A technology of differential backup and file system, applied in the direction of response error generation, redundant data error detection in operation, etc., can solve problems such as inability to restore backup files

Active Publication Date: 2012-02-15
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is: once the local log file is damaged or lost, it will not be possible to restore the current file for the full backup file

Method used

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  • File differential backup system and method
  • File differential backup system and method

Examples

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Embodiment Construction

[0037] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. It should be understood that the following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.

[0038] The embodiment of the system for realizing file differential backup provided by the present invention has a structure such as figure 1 As shown, it includes the sequentially connected file differential backup application subsystem, file filter drive subsystem and remote storage subsystem, wherein:

[0039] The file differential backup application subsystem is used to output the preset file differential backup strategy to the file filter driver subsystem; perform file differential backup according to the log files generated by the file filter drive subsystem;

[0040] The file filtering driver subsystem is used to intercept file c...

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Abstract

The invention discloses a file differential backup system and method. The system comprises a file differential backup application subsystem, a file filtering driving subsystem and a remote storage subsystem, wherein the file differential backup application subsystem outputs a preset file differential backup strategy to the file filtering driving subsystem, and performs file differential backup according to a log file generated by the file filtering driving subsystem; the file filtering driving subsystem intercepts the change information of a file in a file system according to the input file differential backup strategy, locally generates and / or stores a log file and simultaneously transmits the log file to the remote storage subsystem; and the remote storage subsystem stores the log file transmitted by the filtering driving subsystem. By the system and the method, the log file can be retrieved from the remote storage subsystem when the local log file is damaged or lost, thereby rapidly and reliably realizing recovery to a current file for a full backup file.

Description

technical field [0001] The invention relates to data backup technology in the computer application field, in particular to a system and method for realizing file differential backup. Background technique [0002] The pace of global informatization is getting faster and faster, and the total amount of data is growing rapidly, so the security of data storage is becoming more and more important. While informatization brings people fast service and convenient management, it also brings people the risk of digital information loss, so the importance of data backup is becoming more and more prominent. [0003] There are three main methods of data backup: [0004] (1) Full backup, also known as full backup, means that each file will be written into the backup file. [0005] If the data has not changed between two point-in-time backups, then all backup data is the same. The problem is that the backup system doesn't check whether the files have been changed since the last backup; i...

Claims

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Application Information

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IPC IPC(8): G06F11/14
Inventor 杨银春刘正伟文忠领
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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