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Virtual storage image version management method and system for virtual machine

A technology of virtual storage and version management, applied in the field of cloud computing, can solve the problems of increasing memory overhead, large management overhead, occupying large memory space, etc., to achieve the effect of saving content overhead, saving memory overhead, and reducing overhead

Active Publication Date: 2016-07-27
CHINA TELECOM CLOUD TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Block-level version control can only obtain block-level information, but does not have the semantic information and access modes of programs and data corresponding to these blocks. Maintaining relevant block-level metadata information requires a large amount of memory space, so block-level version control is supported. Version control will increase memory overhead
[0014] (2) Version management overhead is high
The number of version management objects is large and the operation is complicated, so there is a lot of management overhead

Method used

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  • Virtual storage image version management method and system for virtual machine

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Embodiment Construction

[0051] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0052] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0053] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0054] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authoriz...

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Abstract

The invention discloses a virtual storage image version management method and system for a virtual machine. The method comprises the following steps of storing metadata and interval block data, wherein the metadata includes a mapping relationship of a physical block number and a logic interval block number of a VSI, a VSI version number, an associated next VSI version number in the time sequence, a version ID, a current version counter, VSI latest version data and VSI historical version data; receiving an operation request on a virtual disk; carrying the VSI version number and the operation type in the operation request; determining the physical block number of the VSI version number; and performing data operation. By dividing a block into interval blocks, the memory overhead can be saved in the version management process.

Description

technical field [0001] The invention relates to the field of cloud computing, in particular to a virtual storage image version management method and system for virtual machines. Background technique [0002] As a computing model of service sharing, cloud computing has incomparable advantages over traditional computing models in terms of system deployment, management and maintenance, and security. The cloud computing virtual storage system has a huge storage capacity and can store and process an ever-increasing mass of user data (including operating systems and applications). However, managing massive data is an arduous task, in which building, using, and maintaining storage subsystems are expensive and complex tasks, and building a low-overhead and low-complexity self-managing storage system for cloud computing is a very important issue. [0003] All user data in cloud computing is stored on the server in the form of a virtual storage image (VSI), such as figure 1 , so the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/06G06F3/06
Inventor 高原全小飞广小明
Owner CHINA TELECOM CLOUD TECH CO LTD
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