Snapshot deleting method and node

A deletion method and snapshot technology, applied in the storage field, can solve the problem of low service performance of storage nodes, and achieve the effect of improving deletion efficiency, improving efficiency, and improving service performance

Active Publication Date: 2017-12-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a snapshot deletion method and node, which can solve the problem of low service performance of the storage node due to frequent access to the storage node during the snapshot deletion process

Method used

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  • Snapshot deleting method and node
  • Snapshot deleting method and node

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Embodiment Construction

[0061] In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

[0062] The snapshot processing system is taken as an example below to illustrate the snapshot deletion method provided by the embodiment of the present application.

[0063] In the snapshot processing system, the snapshot processing system includes storage nodes and storage arrays. The number of storage nodes is not limited, and storage nodes are divided into metadata servers and data servers according to data service functions. A storage array consists of multiple disks (Disk). ...

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Abstract

The embodiment of the invention discloses a snapshot deleting method and a node, and relates to the technical field of storage. The snapshot deleting method includes the steps that at least two obtained snapshot logs are divided by management nodes into at least one snapshot log set, wherein all snapshot logs in each snapshot log set have the same attribute, different snapshot log sets comprise different snapshot logs, the snapshot logs are used for recording differences between copies before objects are modified and objects after modifying, and the copies before the objects are modified are objects output after snapshots of the objects are established; the management nodes send all the snapshot logs of the snapshot log sets to a same storage node. It is avoided that when the multiple snapshot logs are sent to the same storage node, the storage node needs to be frequently accessed, burdens when the snapshot logs are frequently sent by the management nodes are reduced, burdens when the storage node frequently receives the multiple snapshot logs are reduced, and the snapshot-log sending efficiency is improved.

Description

technical field [0001] The embodiments of the present application relate to the field of storage technologies, and in particular, to a snapshot deletion method and a node. Background technique [0002] A file system provides a structured form of data storage and organization. In the file system, a directory is used to represent the data organization structure of the file system. The directory and each subdirectory and file under the directory are respectively an object, and the object includes at least one of data and metadata. The storage nodes of the snapshot processing system include data servers and metadata servers. Based on the requirement of data protection, when the storage node in the snapshot processing system creates a snapshot for an object, it will save a copy of the object, and the copy of the object includes a data copy or a metadata copy. The storage node creates a snapshot log after saving the copy of the object, and saves the snapshot log to the log direc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/128G06F16/13G06F16/162G06F16/1734G06F16/1815
Inventor 赵雨耿谢晓芹
Owner HUAWEI TECH CO LTD
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