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Continuous data protection method and device

A continuous data protection and metadata technology, applied in the computer field, can solve the problems of large synchronization time storage space and low storage utilization

Inactive Publication Date: 2018-10-09
杭州信核数据科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The initial data synchronization time of the block-level CDP in the prior art and the storage space occupied are large, and the storage utilization rate is low

Method used

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  • Continuous data protection method and device

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Embodiment Construction

[0062] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0063] The present invention firstly provides a continuous data protection method, the process of which is as follows figure 1 shown, including the following steps:

[0064] Step 101: receiving a data operation request sent to the source disk of the continuous data protection CDP host;

[0065] Step 102: Redirect the data operation request to a preset copy CDP storage disk during redirection, and process the data operation request at the end of the copy CDP storage disk during the redirection;

[0066] The preset copying of the CDP storage disk during redirection is used to store the CDP history data.

[0067] Since CDP data occupies a large space, it takes a long time to synchronize initial CDP data, especially block-level CDP initi...

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PUM

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Abstract

The invention provides a continuous data protection method and device. The method comprises the following steps that: receiving a data operation request which is sent to a CDP (Continuous Data Protection) host source disk; and redirecting the data operation request to a preset copy-on-redirecting CDP protection disk, and processing the data operation request on a copy-on-redirecting CDP protectiondisk side, wherein the preset copy-on-redirecting CDP protection disk is used for storing CDP historical data. By use of the method and the device provided by the invention, a storage use ratio can be improved, and in addition, an influence on business by CDP and data recovery is lowered.

Description

technical field [0001] The invention relates to the field of computers, in particular to a continuous data protection method and device. Background technique [0002] SNIA (Storage Networking Industry Association, global network storage industry association) defines CDP (Continuous Data Protection, continuous data protection) as: continuous data protection is a kind of continuous capture or tracking without affecting the main data operation. Any changes in the target data, and can be restored to any previous technical method at any point in time. [0003] CDP technology is a major breakthrough to traditional data backup technology, providing users with a new means of data protection, no need to pay attention to the data backup process, but to select the time point to be restored after a disaster occurs to achieve rapid data recovery. From the technical level of implementation, it can be divided into application-level, file-level, and block-level CDP. The application scope a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1448G06F11/1469G06F11/1471
Inventor 王术汪海
Owner 杭州信核数据科技股份有限公司