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A continuous data protection system and its realization method

A continuous data protection and data technology, applied in electrical digital data processing, special data processing applications, redundant data error detection in operations, etc., can solve problems such as large data storage requirements and poor reliability.

Active Publication Date: 2008-05-28
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to overcome the defects of poor reliability of continuous data protection and large demand for data storage in the prior art, the present invention proposes a continuous data protection system and its implementation method

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  • A continuous data protection system and its realization method
  • A continuous data protection system and its realization method
  • A continuous data protection system and its realization method

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Embodiment Construction

[0042] A continuous data protection system and its implementation method provided by the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0043] In an embodiment according to the present invention, a continuous data protection (Continuous Data Protection, CDP) system is shown in FIG. 1 , and the CDP system includes a management tool module, a main body module and physical devices. The physical device refers to the storage device of the CDP system, which is used to store metadata and user data, and is also the final data storage device of the CDP system. The management tool module consists of a set of user space commands, which are responsible for management work such as creation / deletion in the main module of the kernel space. The main module is composed of three sub-modules: Timestamp Storage (TS), Metadata Storage (MS) and Permanent Storage (PS). The functions of the three sub-modules are relatively i...

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Abstract

The invention provides a Continuous Data Protection CDP system and the realizing method thereof. The system comprises a management tool module, a main body module and physical equipment. The system can perform flexible stack. The management tool module is used for building the main body module with a temporal point, and performing the operations of reading, writing and storing to the main body module, according to the difference of the data access frequency and the data level, the important data which is accessed recently adopts a CDP technique with a fine grit, the non-important data which is not accessed often adopts a back-up protection technique with a coarse particle size, thereby the invention can support continuous data protection of different protection granularities, through the flexible stack structure, the requirement of the data memory capacity is reduced, while the reliability for the data continuous protection is not reduced.

Description

technical field [0001] The present invention relates to the technical field of data protection, and more specifically, the present invention relates to a continuous data protection (Continuous Data Protection, CDP) system and an implementation method thereof. Background technique [0002] CDP technology is a data continuous point-in-time protection technology, which is used to solve the problems of time-consuming data backup and inefficient recovery ability in traditional snapshot-backup data protection technology. Currently, according to data protection granularity, CDP technology is divided into near CDP (Near CDP) technology and true CDP (True CDP) technology. The quasi-CDP technology adopts the snapshot technology to take a read-only snapshot of the source data at a certain point in time, which is a static image of the data at that time, and only reflects the data situation at the point in time when the snapshot is taken. Manual snapshots, when reading historical versio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F11/14
Inventor 柯剑许金萍吴忠杰朱旭东
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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