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Method and device for storing data

A technology of data storage and equipment, which is applied in the field of data processing and can solve problems such as data loss

Inactive Publication Date: 2013-03-20
湖南和创磁电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the prior art, when data deduplication and recovery are performed concurrently, the pointer provided to the duplicate copy will point to the data just recovered, resulting in data loss

Method used

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  • Method and device for storing data
  • Method and device for storing data

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Embodiment Construction

[0052] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0053] figure 1 Is a flowchart of Embodiment 1 of the data storage method of the present invention, such as figure 1 As shown, this embodiment provides a data storage method, which can be executed by any device that performs data storage operations, and may specifically include the following steps:

[0054] Step 101: Match the fingerprint of each data block of the file to be stored with the fingerprint in the fingerprint database to obtain ...

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Abstract

The embodiment of the invention provides a method and a device for storing data. The method comprises the following steps: matching a fingerprint of each data block of a to-be-stored file with a fingerprint in a fingerprint database to obtain a corresponding backup data block; deleting repeated data of the to-be-stored file according to the backup data block, and performing status identification to the backup data block; and performing recovery process to the backup data block according to the status identification of the backup data block.

Description

Technical field [0001] The embodiment of the present invention relates to data processing technology, in particular to a data storage method and device. Background technique [0002] As the amount of enterprise data continues to increase, a large amount of duplicate data brings severe challenges to storage. Data de-duplication (Date de-duplication, De-Dupe for short), as an important technology that effectively reduces data and reduces data storage costs, has received more and more attention. [0003] In the task of data storage, the file to be stored is usually divided into data blocks. The deduplication technology can automatically search for duplicate data blocks, keep only one copy of the same data block, and replace the others with a pointer to the unique copy. Duplicate a copy, and increase the reference count of the copy by one to achieve a storage technology that eliminates redundant data and reduces storage capacity requirements. When the only copy data block retained af...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F21/60
Inventor 付旭东段雨梅
Owner 湖南和创磁电科技有限公司
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