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Data acquisition method and device for clone volume

A data acquisition and source data technology, applied in the field of data processing, can solve problems such as storage system business performance degradation, and achieve the effect of ensuring accuracy

Pending Publication Date: 2022-08-05
HANGZHOU HIKVISION SYST TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] In the storage system, if the data of the storage system is uniformly stored in the back-end storage module, when the source data of the clone source volume is copied to the clone volume, the storage node where the clone source volume is located (referring to a storage device or a storage module) needs to obtain all the data from the back-end storage module first, and then transfer the obtained data to the storage node where the clone volume is located, that is, two data transfers are required, which will generate additional network bandwidth load, resulting The business performance of the system is degraded

Method used

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  • Data acquisition method and device for clone volume
  • Data acquisition method and device for clone volume
  • Data acquisition method and device for clone volume

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Embodiment Construction

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0044] In the description of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B. In this article, "and / or" is only an association relationship to describe the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone these three situations. Further, "at least one" means one or ...

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Abstract

The embodiment of the invention provides a clone volume data acquisition method and device, relates to the technical field of data processing, and can save bandwidth resources occupied by data transmission during clone volume data acquisition. The method is applied to a first storage node of the storage system, a clone source volume of a clone volume is stored in the first storage node, the storage system further comprises a second storage node, the clone volume is stored in the second storage node, and the method specifically comprises the steps of receiving a data acquisition request sent by the second storage node, the data acquisition request is used for requesting source data of a first data block in a cloned volume; according to the data acquisition request, performing data read protection on a data source, and acquiring a source data index of a first data block, the source data index being used for searching source data of the first data block; and sending the source data index to the second storage node.

Description

technical field [0001] The present application relates to the technical field of data processing, and in particular, to a data acquisition method and device for a cloned volume. Background technique [0002] A cloned volume refers to a new volume obtained by duplicating a cloned source volume. Generally, it refers to the complete copy of the snapshot volume of the cloned source volume. After the copy is completed, the user can start another branch on the cloned volume to read and write. The snapshot volume of the clone source volume refers to a volume obtained after taking a snapshot of the clone source volume. Normally, when a clone source volume is snapshotted, the source data of the clone source volume is not copied, so there is no source data in the clone volume. When a user accesses the source data of the cloned volume, the source data of the cloned source volume needs to be copied to the cloned volume. [0003] In a storage system, if the data of the storage system ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/064G06F3/0647G06F3/067
Inventor 张高鹏陈伟黄健
Owner HANGZHOU HIKVISION SYST TECH
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