Method, apparatus and device for data backup

A data backup and data technology, applied in the computer field, can solve the problem of occupying too many link resources, and achieve the effect of reducing the occupation

Inactive Publication Date: 2019-01-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a method to solve the problem in the prior art that the repeated data is sent to the target device, which occupies more link resources.

Method used

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  • Method, apparatus and device for data backup
  • Method, apparatus and device for data backup
  • Method, apparatus and device for data backup

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Embodiment Construction

[0065] The application background of this application is: to back up the data of the source device to the target device. Wherein, the source device and the target device are connected through a communication network.

[0066] The technical solution of the present application will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0067] figure 1 It is a flowchart of a data backup method provided by an embodiment of the present application. The data backup method provided in the embodiment of the present application may be performed by the source device. Such as figure 1 As shown, the method of this embodiment may include:

[0068] Step 101. Determine whether the data in the data block corresponding to the first data block index is the same as the data in the data block corresponding to the second data block index...

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Abstract

The present application provides a method, an apparatus and a device for data backup. The method comprises the following steps: judging whether the data in the data block corresponding to the index ofthe first data block is the same as the data in the data block corresponding to the index of the second data block; the data block corresponding to the index of the first data block being a data block to be copied, and the data block corresponding to the index of the second data block being a copied data block. If the data in the data block corresponding to the first data block index is the sameas the data in the data block corresponding to the second data block index, sending duplicate information to the target end device, the duplicate information indicating that data in the data block corresponding to the first data block index is duplicated with data in the data block corresponding to the second data block index. The present application reduces the occupancy of link resources.

Description

technical field [0001] The present application relates to computer technology, in particular to a data backup method, device and equipment. Background technique [0002] Typically, data is stored on the device. In order to achieve the purpose of data protection or disaster recovery, it is necessary to back up the data stored in the device. [0003] In the prior art, when backing up the data of a device (ie, the source device), it can be realized by copying the data of the device to another device (ie, the target device). Wherein, when the source device stores a lot of duplicate data, the duplicate data also needs to be sent from the source device to the target device. [0004] However, in the above solution, the source device sends repeated data to the target device, which has the problem of occupying more link resources. Contents of the invention [0005] The embodiment of the present application provides a method to solve the problem in the prior art that repeated dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
CPCG06F11/1453G06F11/1458
Inventor 罗小东
Owner HUAWEI TECH CO LTD
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