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Data storage method and device

A data storage and data technology, applied in the field of communication, can solve the problems of occupying large storage resources and occupying reading resources, achieve high data reliability, realize mapping addressing, and save storage resources.

Active Publication Date: 2018-02-23
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the need to store metadata for each data object, when the number of data objects is large, the metadata of all data objects will occupy a large amount of storage resources, and it is necessary to frequently access the management nodes of the distributed file system to manage Nodes read metadata, which takes up a lot of reading resources

Method used

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Embodiment Construction

[0025] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second ...

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Abstract

The present application provides a data storage method and a data storage device. The method comprises the following steps: acquiring a to-be-stored data file and an LUN (logic unit number) identifiercorresponding to the data file; determining a plurality of object storage devices (OSD) corresponding to the LUN identifier according to cluster view information, wherein the number of the pluralityof OSD is not less than the number M of data copies corresponding to the LUN identifier; splitting the data file into a plurality of data blocks and generating a plurality of data block groups according to the plurality of data blocks; determining, for each data block group, a master OSD for storing master data in the data block groups and a slave OSD for storing replica data in the data block groups from the plurality of OSD, storing the master data in a master partition of a corresponding master OSD, and storing the replica data in a slave partition of the corresponding slave OSD; and storing metadata corresponding to the data file to a monitoring server. Through the technical scheme of the present application, higher data reliability can be provided.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a data storage method and device. Background technique [0002] With the massive application of mobile networks, big data, and cloud computing, higher and higher requirements are put forward for storage capacity and storage performance. Ceph (distributed file system based on Linux PB), GFS (Google File System, Linux-based Proprietary distributed file system), Gluster, HDFS (Hadoop Distributed File System, distributed file system) and other distributed file systems have been developed rapidly. [0003] Wherein, the distributed file system may include multiple OSDs (Object Storage Devices, object storage devices), the OSD is a data storage service unit, and one OSD may correspond to one physical disk. [0004] In order to realize the storage of the data file, the data file is split into multiple data objects, the metadata (metadata) of each data object is obta...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/13G06F16/182
Inventor 李航
Owner NEW H3C TECH CO LTD