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Backup data real-time recovery method and system

A technology of backup data and recovery method, which is applied in the directions of database indexing, database update, structured data retrieval, etc., can solve problems such as inability to realize real-time recovery, and achieve the effect of improving data recovery speed, reducing time-space complexity, and speeding up the speed

Active Publication Date: 2021-06-18
南京云信达科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for real-time recovery of backup data, which is used to improve the problem in the prior art that real-time recovery cannot be achieved by restoring the data table and copying the recovery method

Method used

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  • Backup data real-time recovery method and system
  • Backup data real-time recovery method and system

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Embodiment

[0056] Some implementations of the present application will be described in detail below in conjunction with the accompanying drawings. In the case of no conflict, each of the following embodiments and each feature in the embodiments can be combined with each other.

[0057] Please see figure 1 , figure 1 It is a flow chart of a method for real-time recovery of backup data provided by an embodiment of the present invention. The backup data real-time recovery method includes the following steps:

[0058] Step S110: Obtain the data to be backed up and the current time stamp in real time; during the full data backup process, there will be new data writing and data modification, and the data to be backed up can be obtained in real time, and the current time stamp is used to authenticate the time when the data was generated. In order to verify whether this piece of data has been tampered with after it is generated.

[0059] Step S120: Compare the real-time acquired data to be b...

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Abstract

The invention provides a backup data real-time recovery method and system, and relates to the technical field of data backup. The backup data real-time recovery method comprises the following steps: collecting data to be backed up and a current timestamp in real time; comparing the to-be-backed-up data obtained in real time with preset total data to obtain a change data block set; marking a preset block bitmap according to the change data block set, and generating a block bitmap of the current timestamp; generating a data modification table according to the block bitmap of the current timestamp and the change data block set; updating a preset time address table according to the current timestamp and the data modification table to generate a new time address table; and performing data recovery on the data according to the block bitmap, the data modification table and the time address table to generate real-time recovery data. Real-time block data change tracking and recording are achieved through the block bitmap, the data modification table and the time address table, dynamic retrieval is conducted in the data recovery process, and online millisecond-level real-time data recovery is achieved.

Description

technical field [0001] The invention relates to the technical field of data backup, in particular to a method and system for real-time recovery of backup data. Background technique [0002] With the popularity of computer applications, data has become an important asset for data owners. Once data is lost, it will cause huge losses to computer users. Problems such as software platform failures, operating system design loopholes, and system hardware failures will bring immeasurable losses to system data, affect the normal operation of enterprise servers, and cause serious losses to scientific research and production. Therefore, during the maintenance process of server management software, the system administrator must back up data such as configuration information and database information in the current system at a certain node to prevent immeasurable losses caused by subsequent misoperations. [0003] At present, the common data backup real-time recovery technology has CDP (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F16/22G06F16/23G06F16/245
CPCG06F11/1469G06F16/2255G06F16/2282G06F16/23G06F16/245
Inventor 赵熙
Owner 南京云信达科技有限公司
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