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System and method for protecting continuous data for establishing data view based on time stamp

A data view and data protection technology, which is applied in the direction of data error detection, electrical digital data processing, special data processing applications, etc., can solve the problems of affecting work efficiency, system instability, and insufficient integration of file management systems. Compactness and other issues, to achieve the effect of simple structure and convenient operation

Inactive Publication Date: 2009-11-11
XIAN BLUE OCEAN SOURCE INFORMATION TECH
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AI Technical Summary

Problems solved by technology

[0003] The current true CDP technology is generally implemented in the file driver layer (based on files) or device driver layer (based on or device driver layer (based on data blocks), processes the protected data objects in its own driver, and the file management system itself The integration of the system is not tight enough. On the one hand, the functions of the file management system are not fully utilized, which affects work efficiency. On the other hand, it is easy to cause system instability.

Method used

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  • System and method for protecting continuous data for establishing data view based on time stamp
  • System and method for protecting continuous data for establishing data view based on time stamp
  • System and method for protecting continuous data for establishing data view based on time stamp

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Embodiment Construction

[0023] 1. Basic data structure

[0024] Two basic tables and two views are used in this system: management attribute table, file management table, current view and historical view. The management attribute table records the user parameter settings, the creation time of the protection system, the time of the last data recovery, and the generation time stamp of the historical view that replaced the current view last time; the file management table records all the change information of the protected area files; The current view is the data view corresponding to the current moment; the historical view is the data view generated for a certain time node. The composition of each table and view is described as follows:

[0025] 1) Manage property sheet

[0026] ProtectedArea: protected area

[0027] DataUnitSize: Data unit granularity, that is, the number of sectors per data unit

[0028] CurViewCreatedTime: The current view creation time stamp, the time stamp (Timestamp, TS) when...

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Abstract

The invention relates to a system and a method for protecting continuous data for establishing data view based on time stamp, and belongs to the field of data protection. The method comprises the following steps: by using a thought of establishing different views according to a database aiming at different user requirements in a relational database management system, and by recording storage information, change information and change time of a data unit, establishing a storage and change database of the protected data; and recovering data through a mode of providing a data view established based on a time node set by a user to a file management system as index basis. The system and the method have the advantages of achieving the aims of effectively protecting data and improving the stability and reliability of the system, and ensuring that all protected data are managed by the file management system.

Description

technical field [0001] The present invention belongs to the field of data protection. Background technique [0002] CDP technology is a continuous protection technology based on time point. According to different methods, it can be divided into quasi-CDP (Near CDP) and true CDP (True CDP). The quasi-CDP technology adopts static image backup of data at a certain moment, generally by means of regular automatic backup or manual backup. During recovery, only the static data image at the backup moment can be recovered. The true CDP technology records every change of the data, in other words, every write operation to the storage device will be recorded, so that the data can be restored to any time as needed. [0003] The current true CDP technology is generally implemented at the file driver layer (file-based) or device driver layer (based on or device driver layer (data block-based), processing the protected data objects in its own driver, and the file management system itself. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F17/30
Inventor 石燕
Owner XIAN BLUE OCEAN SOURCE INFORMATION TECH
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