A dual-system hot backup method based on arbitration disk mechanism

A dual-system hot backup and dual-system hot backup technology is applied in the direction of response error generation, redundancy in hardware for data error detection, etc. Judging the effect of accurate and stable services

Active Publication Date: 2016-06-22
INSPUR BEIJING ELECTRONICS INFORMATION IND
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Problems solved by technology

[0004] However, the current dual-machine hot backup method has many disadvantages, such as the inability to accurately monitor whether the other server is working normally, resulting in misjudgment; the other is prone to split-brain situations, which makes the server database damaged, corrupted data

Method used

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  • A dual-system hot backup method based on arbitration disk mechanism
  • A dual-system hot backup method based on arbitration disk mechanism
  • A dual-system hot backup method based on arbitration disk mechanism

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Embodiment Construction

[0015] combined with Figure 1-4 The technical solution of the present invention is described in detail.

[0016] See attached figure 1 , the entire dual-system hot standby system consists of two servers and one storage node, the two servers are respectively NodeA and NodeB, and the two servers are connected to the storage node through optical fibers. Divide a piece of disk space on the storage node as an arbitration area, and only allow specific processes to read and write to it, while the data generated by real-time services is stored in other partitions, that is, this partition is only used for arbitration, not for storage applications. The active node (one of NodeA and NodeB) and the backup node (the other of NodeA and NodeB) in the system regularly read and write to the arbitration area, and the backup node perceives the current work of the active node by judging a specific status bit state. When the arbitration area is controlled by the active node, the backup node wi...

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Abstract

Provides a dual-machine hot backup method based on the arbitration disk mechanism, which is used to realize backup between multiple servers. The multiple servers obtain the control right of the arbitration area on the storage node through competition, and successfully obtain the control right of the arbitration area The server of the node becomes the active server, and other nodes become the backup server; the active server regularly updates the heartbeat value, and the backup server regularly reads the heartbeat value, and if the heartbeat value does not change within a period of time, it is determined that the active server is down machine, the backup server again competes for control of the arbitration zone, determining a new active server. The method can accurately judge the working state of the active server, avoid misjudgment and split-brain situations, and ensure service continuity.

Description

technical field [0001] The invention relates to the technical field of server hot backup, in particular to a dual-machine hot backup method based on an arbitration disk mechanism. Background technique [0002] As a node of the network, the server stores and processes 80% of the data and information on the network. Therefore, it is also called the soul of the network. It is a high-performance computer that provides various services for client computers on the network. Users provide services such as centralized computing, information publishing and data management. Its high performance is mainly reflected in high-speed computing capabilities, long-term reliable operation, and powerful external data throughput capabilities. [0003] In order to provide reliable, continuous and uninterrupted services to the outside world, the server must have reliable stability to ensure the smooth progress of various real-time online services. Based on this, the online transaction interruptio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/16
Inventor 郭美思宋立伟吴楠
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND
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