A method and device for restoring data

A technology for repairing data and data, which is applied in the field of repairing data, and can solve problems such as permanent data damage, unrepairable copies, and user loss

Active Publication Date: 2016-06-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In some cases, all copies will be damaged. For example, if the copies in node 1, node 2, and node 3 are all damaged, the copies cannot be repaired, which will cause permanent damage to the backed up data and cause losses to users. Backed up data is less secure

Method used

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  • A method and device for restoring data
  • A method and device for restoring data
  • A method and device for restoring data

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Embodiment Construction

[0107] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0108] On the one hand, the embodiment of the present invention provides a method for repairing data, such as Figure 1a shown, including:

[0109] It should be noted that, the specific implementation manner of repairing data in this embodiment can be executed by equipment such as a server, for example: a management server in a commonly used database; it can also be executed by a terminal device, for example: commonly used by technicians at work, Mobile workst...

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PUM

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Abstract

The embodiment of the invention discloses a method and device for restoring data, which relates to the field of electronic information technology, and can restore backed-up data when damaged data exists in all copies. The method of the present invention includes: backing up the data to be backed up, and generating at least N identical copies, each copy consisting of at least M slices, N being a positive integer greater than or equal to 2, M being a positive integer greater than or equal to 1, Divide the slices of each replica in the same way; check whether the slices in the same position in all replicas are damaged; if at least one is not damaged, replace the damaged slice with an undamaged slice. The invention is suitable for repairing data in replicas.

Description

technical field [0001] The invention relates to the technical field of electronic information, in particular to a method and device for restoring data. Background technique [0002] With the development of electronic information technology, users store more and more data in the database. In order to ensure the security and stability of data, many data maintenance / repair technologies have been derived. Among them, the multi-copy data storage technology is a commonly used data maintenance / repair technology. [0003] The existing multi-copy data storage technology is to divide the data into multiple identical copies, and store the multiple identical copies in different databases or backup nodes, for example: [0004] The data that needs to be backed up can be copied, and three identical copies are separated, and each copy is the same as the data that needs to be backed up. And these three identical copies are stored in Node 1, Node 2, and Node 3 respectively, and Node 1, Nod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
CPCG06F11/1448G06F16/113G06F16/182G06F11/1435G06F11/1451G06F11/2058G06F2201/84
Inventor 张烽滕奉涛
Owner HUAWEI TECH CO LTD
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