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Data storage node selection method

A storage node and data storage technology, which is applied in the direction of electrical digital data processing, data processing input/output process, instruments, etc., can solve the problem of unbalanced data storage volume, and achieve the effect of selecting balance, protecting data and application settings

Active Publication Date: 2020-06-19
西安奥卡云数据科技有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for selecting data storage nodes to solve the problem of unbalanced data storage capacity of each storage node in a distributed storage system

Method used

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  • Data storage node selection method

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] The distributed storage system is composed of multiple storage nodes (hereinafter referred to as nodes), and each storage node is responsible for saving a part of user data. As for which storage node the data is saved to, in a general storage system, metadata such as a large mapping table or tree is maintained, which causes a burden of metadata management. In addition, in the traditional solution, the storage node where the metadata is located will become a "privileged storage node", which brings the hidden danger of a single point of failure.

[0032] A distributed management storage system needs to organize the scattered storage space of each server across storage nodes, presenting a unified and continuous view to users. Communication between nodes relies on mature network protocols such as TCP / IP, and new network devices such as RO...

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Abstract

The invention discloses a data storage node selection method. The method comprises the steps of obtaining a data encryption abstract value of a to-be-stored data block; comparing the data encryption abstract value with node encryption abstract values in a storage node array of the distributed storage system in sequence until a first node encryption abstract value greater than the data encryption abstract value is found; extracting a number of a first storage node corresponding to the first node encryption abstract value; storing the to-be-stored data block to a first storage node; according tothe technical scheme, the storage node array of the distributed storage system is established, the storage space of each storage node is equally divided into the plurality of unit storage spaces withthe same size, and the unit storage spaces are arranged in the array in the same way, so that the selection of the nodes is more balanced during data storage.

Description

【Technical field】 [0001] The invention belongs to the technical field of computer storage, and in particular relates to a method for selecting a data storage node. 【Background technique】 [0002] With the advent of the big data era, business applications have an increasing demand for storage space and higher performance. The storage requirements of massive data have far exceeded the range that traditional multi-controller storage systems can bear. No single set of storage can provide such a large data storage capacity. Storage systems are developing toward large-scale, distributed, and virtualization. [0003] The management of distributed storage space is to organize the scattered hard disk space scattered on multiple server nodes through some means or software to form a logically continuous large storage space. Then, multiple storage servers cooperate with each other to present a unified and virtual view of a single space to users. [0004] In the existing distributed ...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/064G06F3/067
Inventor 陈鹏刘露刘洋
Owner 西安奥卡云数据科技有限公司
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