Rollback method and device for snapshot nodes of distributed block storage

A block storage and distributed technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of large time consumption and space waste, and achieve the effect of ensuring structural integrity

Inactive Publication Date: 2018-04-17
BEIJING HUAYUN WANGJI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then for the multi-branch of the snapshot tree, each branch needs a complete data volume, so there is a waste of space
In addition, rolling back such a large database consumes a lot of time

Method used

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  • Rollback method and device for snapshot nodes of distributed block storage
  • Rollback method and device for snapshot nodes of distributed block storage
  • Rollback method and device for snapshot nodes of distributed block storage

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Embodiment Construction

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0025] Such as figure 1 As shown, it is a rollback method of a distributed block storage snapshot node according to the present invention, which is characterized in that it includes:

[0026] Step 11, receiving the rollback instruction of the snapshot node; the rollback instruction includes: the target snapshot node to be rolled back to;

[0027] Step 12, taking an automatic snapshot of the current data volume to generate an automatic snapshot node;

[0028] Step 13: Update the current data volume to the state of the target snapshot node ...

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Abstract

The embodiment of the invention provides a method and device for rolling back a snapshot node of a distributed block storage, which can ensure the completeness of a snapshot tree structure. The method for rolling back a snapshot node of a distributed block storage comprises the following steps: receiving a back-rolling command, including a target snapshot node to be rolled back, of a snapshot node; automatically snapshooting a current data reel to generate an automatic snapshot node; and updating the current data reel to the state of the target snapshot node according to the back-rolling command. According to the method and device, snapshooting can be performed automatically, so that the completeness of the snapshot tree structure is ensured.

Description

technical field [0001] The present invention relates to the technical field of distributed block storage, in particular to a method and device for rolling back snapshot nodes of distributed block storage. Background technique [0002] As the core basic platform of cloud storage, the importance of distributed storage has become increasingly prominent. The distributed storage system supports the data volume snapshot function and the snapshot tree very commonly. When the branches of the snapshot tree increase, each branch must retain the complete data of the data volume, so that it can be rolled back to any state of snapshot taken by itself. Therefore, the complete data of any snapshot needs to be recorded in the snapshot tree. [0003] Typically, each snapshot volume must depend on a full data volume. Then, for the multiple branches of the snapshot tree, each branch needs a complete data volume, so there is a waste of space. In addition, rolling back such a large database c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0619G06F3/065G06F3/067
Inventor 李纲彬游峰王劲凯董冠军姜金瑞
Owner BEIJING HUAYUN WANGJI TECH
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