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A method and device for implementing snapshot management

A snapshot and storage space technology, applied in the direction of input/output to record carrier, etc., can solve the problems of waste of storage space, inability to use storage space, and reduce the efficiency of storage space usage, so as to achieve the effect of reducing waste and improving usage efficiency

Active Publication Date: 2018-08-03
INSPUR BEIJING ELECTRONICS INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the user rewrites the data in the data block, the storage space corresponding to the snapshot needs to be used to store the original data of the data block. Therefore, after the user creates the snapshot and the storage system allocates storage space for it, but the user temporarily When the data of this data block is not rewritten, the storage system cannot use the storage space corresponding to the snapshot, which will cause waste of storage space and reduce the efficiency of storage space usage

Method used

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  • A method and device for implementing snapshot management
  • A method and device for implementing snapshot management
  • A method and device for implementing snapshot management

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Embodiment Construction

[0025] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

[0026] The steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer-executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.

[0027] The embodiment of the present invention provides a method for realizing snapshot management, such as figure 1 Shown, including:

[0028] Step 101: Receive a snapshot establishment request message of the target data block sent by the client.

[0029] Wherein, the snapshot creation request messag...

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Abstract

The present invention discloses a method and device for realizing snapshot management. The method includes: receiving a snapshot creation request message of a target data block sent by a client; wherein, the snapshot creation request message carries snapshot information; the snapshot The information refers to the information required when creating a snapshot; the snapshot information at least includes: the file attribute of the target data block, the snapshot creation time; the snapshot identifier is generated according to the snapshot information; when it is determined that the user does not use the snapshot, the The system obtains the storage space address corresponding to the snapshot, and stores the storage space address corresponding to the snapshot. The invention reduces the waste of the storage space and improves the utilization efficiency of the storage space.

Description

Technical field [0001] The invention relates to storage device technology, in particular to a method and device for realizing snapshot management. Background technique [0002] With the rapid development of computer technology, digital information has gradually replaced paper-media data, showing rapid growth. Mass data has given birth to the development of cloud computing, big data, and mass storage systems. The demand for storage devices and storage applications is also increasing. Government industries, banking systems, and power companies have higher requirements for data security and business continuity, and online data protection must be provided. [0003] Snapshots are an effective method for online storage devices to prevent data loss. One function of the snapshot is to backup and restore online data on demand. When the storage device has an application failure or a file is damaged, fast data recovery can be performed, and the data can be restored to a state at a certain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 魏盟
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND