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The Service Destroy Tolerant and the None-person-keep-watch Methods in the Disaster Tolerant System

Author: LiuSha
Tutor: LiTao
School: Sichuan University
Course: Computer Software and Theory
Keywords: Remote disaster recovery Service invulnerability Unattended Restoration Mirroring Backup
CLC: TP302.8
Type: Master's thesis
Year: 2006
Downloads: 194
Quote: 0
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Abstract


The rapid development of computer and network , and continuously push forward the process of social information , the importance of data increasingly aroused great importance to stakeholders . Information system risks and threats facing disastrous earthquakes, floods, war , and many other , how to create a disaster recovery system to ensure data security and stability of the urgent need to address the problem . Majority disaster recovery program , or need special equipment such as leased line or fiber-optic communication , resulting in the total cost of ownership is significantly higher , or affect the normal operation of the original system , resulting in system performance is also less than ideal . The measure of a disaster recovery system lies , this system is able to guarantee the stability and robustness of the original application production system that can provide an effective mechanism in the production and application of system failure or disaster , the disaster recovery system can quickly take the appropriate measures to provide continuity of service to the outside world hardly less than a service interruption , has better recovery time indicators ( RTO the Recover time Object ) , to ensure the stability of the system ; production application systems for off-site disaster recovery whether can support no staff on duty the day-to-day management , maintenance , monitoring work to ensure the robustness of the system , and reduce system operating costs . Solve the above problem , we propose a method of invulnerability and unattended service in a disaster recovery system , and provide a strong guarantee for the stability and robustness of the system . Specifically , the main work of this paper are : 1 . Analysis and comparison of the status of the disaster recovery system at home and abroad . 2. Achieve an off-site disaster recovery system , its basic principles , design ideas , core technology and system framework and analysis of the main issues addressed by this disaster recovery systems . Disaster recovery system service invulnerability invulnerability subsystem service in a disaster recovery system , and gives the design method and software architecture . The subsystem for disaster recovery system may face a variety of threats and failure to take appropriate measures to implement the service invulnerability , 24 ⅹ 7 uninterrupted service , in order to ensure continuity of service . 4 . Based network unattended subsystem , the subsystem capable of real-time, accurate monitoring of the entire disaster recovery systems , support without special duty , day-to-day management , maintenance, monitoring, etc.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Design and Performance Analysis > Fault-tolerant technology
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