Disaster-tolerant backup method based on P2P

A technology of disaster recovery backup and disaster recovery, which is applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of high cost and low utilization rate of disaster recovery systems, so as to improve resource utilization and improve the ability to resist disasters , the effect of improving flexibility

Inactive Publication Date: 2010-02-17
BEIJING UNIV OF TECH
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Problems solved by technology

[0008] In order to solve the problems of high cost and low utilization rate of existing disaster recovery systems, the pres

Method used

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  • Disaster-tolerant backup method based on P2P
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  • Disaster-tolerant backup method based on P2P

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Embodiment Construction

[0034] figure 1 Shown is the overall flow chart of the present invention. First, divide the network where the disaster recovery system needs to be deployed into several logical areas according to the network scale, geographical location, and disaster recovery intensity. For example, if a nationwide disaster recovery system is deployed, it can be divided into logical regions such as Northeast, North China, East China, South China, Northwest China, and Southwest China.

[0035] After that, disaster recovery servers need to be deployed. The disaster recovery server is a network node with relatively good software and hardware performance. It can be selected from existing nodes in the network, or a new node can be added to the network. There must be at least one disaster recovery server in a logical area. The disaster recovery server must manually install the disaster recovery server software and database software in advance.

[0036] The database software is responsible for reco...

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Abstract

The invention discloses a disaster-tolerant backup method based on P2P. The method comprises the following steps that a network of a disaster-tolerant backup system to be configured is divided into aplurality of logic regions; each logic region includes at least one disaster-tolerant backup server and a plurality of nodes; the disaster-tolerant backup server allocates one unique identity for eachnode added to the disaster-tolerant backup system and takes charge of saving a node information list and a disaster-tolerant backup data list; each node mutually executes the data backup according tothe node information list and the disaster-tolerant backup data list saved on the disaster-tolerant backup server; and after the disaster happens, the disaster-tolerant backup server recovers data broken by the disaster from the nodes not suffering the disaster according to the two lists. The invention utilizes a P2P technology and fully utilizes the spare resource of each node in the disaster-tolerant backup system to perform disaster-tolerant backup to recover data and services of other nodes so as to reduce the cost of the disaster-tolerant backup system and also improve the resource utilization ratio of the disaster-tolerant backup system.

Description

technical field [0001] The invention belongs to the field of disaster recovery, and in particular relates to a method for disaster recovery and backup of electronic information and services by using P2P (Peer to Peer) technology. Background technique [0002] With the continuous development of information technology, more and more enterprises and institutions use computer systems for fast data storage and processing, and provide applications and services inside and outside the unit. This makes the normal operation of enterprises and institutions more and more dependent on the computer system. Once encountering an unknown disaster that can cause the computer system to be paralyzed, the entire unit will be paralyzed. For example, after the "9.11" incident in the United States, more than 80% of the companies in the World Trade Center closed down due to data loss and service interruption. [0003] Disaster recovery backup, referred to as disaster recovery, is an effective way t...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/24
Inventor 姜楠王健
Owner BEIJING UNIV OF TECH
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