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RAC-based redundant server system

A redundant server and server technology, applied in the field of RAC-based redundant server systems, can solve problems such as increasing software purchase costs and increasing the burden on system maintenance personnel, and achieve the effects of saving costs, good reliability, and good scalability

Inactive Publication Date: 2010-03-31
CASCO SIGNAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the case that the application server and the data server share a set of hardware platforms, if operating system clusters or third-party clusters are used to implement application redundancy, it will not only increase the purchase cost of software, but also increase the burden of system maintenance personnel

Method used

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  • RAC-based redundant server system
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  • RAC-based redundant server system

Examples

Experimental program
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Embodiment 1

[0034] like figure 1 , figure 2 , image 3 As shown, a RAC-based redundant server system includes N nodes 1, wherein each node 1 runs an application server, a database server, and a watchdog system, and each node is connected to a shared disk array device 2. connected, one end of each node is uniformly connected to the private network 3, and the other end of each node is uniformly connected to the public network 4, each node has a virtual IP of the public network, and the one accessed by the user The public network IP address is the primary virtual IP address, the server with the primary virtual IP is called the host, and the other servers are the standby servers. The switch between the active and standby servers is realized through the watchdog system.

[0035] The described master / slave switchover includes the following processes:

[0036] 1) Since the entire system is a RAC cluster, we use the primary virtual IP as the host identifier. When the system is started, the n...

Embodiment 2

[0050] The invention is applied to a local factory and mine transportation production scheduling system (hereinafter referred to as "transportation production scheduling system"):

[0051] The transportation and production scheduling system includes two servers, which are deployed in the company's central computer room using a redundant architecture. The two servers share a set of disk arrays, and all the data of the system are stored in the disk array, which effectively ensures the 24-hour online of data and applications.

[0052] The application of the system includes two parts: ERP system based on B / S structure, and interface service program based on TCP / IP. The applications of the two servers are in a hot standby state, and services are provided to users through a unified master VIP.

[0053] The watchdog service is deployed on the central server to realize automatic switching when the application system fails, effectively ensuring the 24-hour online of the application. ...

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Abstract

The invention relates to a RAC-based redundant server system, which comprises N nodes, wherein each node operates an application server, a database server and a watchdog system; each node is connectedwith a shared disk array device; one end of each node is connected into a private network uniformly; the other end of each node is connected to a public network uniformly; each node has a virtual IPof the public network; a public network IP address accessed by a user is a main virtual IP address; a server having the main virtual IP is called as a host computer; other servers are standby computers; and the host computer and the standby computers are switched by the watchdog system. Compared with the prior art, the RAC-based redundant server system has the advantages of low cost, good expansibility, good reliability, short switching time and the like.

Description

technical field [0001] The present invention relates to a redundant server system, in particular to a redundant server system based on RAC (real application clusters). Background technique [0002] With the improvement of the domestic informatization level, the requirements for the online availability of the application system are getting higher and higher. Generally, 7*24 hours of uninterrupted service is required, and system redundancy is an effective means to achieve the above purpose. [0003] A typical application system includes application server and data server. Correspondingly, system redundancy should also cover application server redundancy and data server redundancy. [0004] For application redundancy, the main implementation methods are cluster technology or load balancing technology (subdivided into software load balancing and hardware load balancing); for database redundancy, the main implementation method is to use database cluster technology. [0005] Befo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L1/22G06F17/30
Inventor 周庭梁张立鹏
Owner CASCO SIGNAL
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