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A method and device for enhancing the reliability and availability of a dual-machine cluster

A technology of availability and clustering, applied in digital transmission systems, data exchange networks, and error prevention. It can solve problems such as node failure, enhance stability and availability, and avoid rack power failure.

Active Publication Date: 2018-11-09
TOYOU FEIJI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The idea of ​​the present invention is to deploy a dual-machine cluster system by separating the controller and the disk, and transmit the heartbeat information by setting the heartbeat disk, so as to solve the problem that the node will think that the other party is invalid due to the failure of the heartbeat network

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  • A method and device for enhancing the reliability and availability of a dual-machine cluster
  • A method and device for enhancing the reliability and availability of a dual-machine cluster
  • A method and device for enhancing the reliability and availability of a dual-machine cluster

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with specific embodiments.

[0043] In this embodiment, the method of the present invention is described in detail by taking a two-machine cluster of shared disks composed of 24 disks as an example.

[0044] One: Take one of the two computers as the master control node, create a RAID storage pool for 24 disks on it, that is, a shared disk, and create raw device volumes and file system data sets on the pool, and the raw device volumes are passed through optical fiber or iSCSI protocol. (not limited to these two methods) external mapping, file system data sets provide external access through CIFS or NFS protocol (not limited to these two methods); when creating a RAID storage pool, reserve a part on the disk selected for heartbeat communication The area is used as the heartbeat disc to store the heartbeat information. In this embodiment, the 4MB position from the starting position of the disk is used a...

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Abstract

The invention relates to a method for enhancing reliability and availability of dual-computer clusters, is applicable to big data cluster storage and belongs to the technical field of cluster storage. According to the method provided by the invention, aiming at the problem that in the conventional dual-computer clusters, the heartbeat information transmission is only realized by a network or a serial port, after the serial port and the network generate faults, the heartbeat information among the clusters cannot be transmitted, the clusters split brains and battle for resources mutually and the data generate inconsistency, in order to solve the problem, a method and device for transmitting the heartbeat information based on the shared disk among the clusters is designed; a space is reserved on the disk as a heartbeat disk; when the heartbeat network generates a fault; communication is carried out through the heartbeat disk; the brain split is avoided; the consistency of the clusters is enhanced; and the high reliability and high availability of the clusters are ensured.

Description

technical field [0001] The present invention relates to a method and device for enhancing the reliability and availability of a dual-machine cluster, in particular to a method and device for improving the reliability and availability of a dual-machine storage system when using back-end shared storage, which is suitable for a dual-machine cluster storage system and belongs to Cluster mass data storage technology field. Background technique [0002] In the field of modern storage, in order to improve the reliability of stored data and improve the input and output performance of storage systems, people have designed a variety of data storage solutions, which are usually various types of redundant arrays of independent disks (Redundant Arrays of Independent Disks, RAID). By using specific hardware or software, RAID combines multiple physical storage devices such as disks to form a unified logical storage device to provide storage services for application systems. In order to i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26H04L1/22H04L29/08
CPCH04L1/22H04L41/0668H04L43/10H04L67/1044H04L67/1097
Inventor 王道邦李艳国张恒周泽湘沈晶罗华潘兴旺段舒文于召鑫扬威
Owner TOYOU FEIJI ELECTRONICS
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