一种可生存系统的自主应急恢复方法  

A Method of Autonomous Emergency Rejuvenation for Survivable System

作　　者：赵国生[1] 王健[2] 李振兴[1] 那锐[1] 

机构地区：[1]哈尔滨师范大学计算机科学与信息工程学院,哈尔滨150025 [2]哈尔滨理工大学计算机科学与技术学院,哈尔滨150001

出　　处：《小型微型计算机系统》2014年第10期2284-2289,共6页Journal of Chinese Computer Systems

基　　金：国家自然科学青年基金项目(61202458)资助;高等学校博士学科点专项科研基金项目(20112303120007)资助;黑龙江省教育厅科学技术项目(12521146;12511099)资助

摘　　要：提出一种面向可生存系统的自主应急恢复方法.研究了系统最优重启恢复的时间,确定了重启恢复的时间间隔参数;介绍了分层多级应急恢复的实现方式,依据重启对象的不同将恢复分成4个层次,并按层内分级的思想给出了重启次序优先级和重启次序链的建立方法;并对重启恢复实施过程进行了建模分析和构建了系统状态转换模型.仿真实验进一步分析了影响恢复总成本的参数约束,通过和传统周期性恢复方法比较,提出的方法在大大降低恢复成本的同时提高了系统的可生存性能.Abstraet：A method of autonomous emergency rejuvenation for survivability was presented. Firstly, the optimal restart recovery time was discussed and the restart time interval parameters were also given out. And then introduced the layered and multilevel implementa- tion model of emergency recovery. The process of rejuvenation was divided into four levels on the basis of defferent restart objects, and according to the given thought of layer classification to establish the restart order of priority and restart chain. Finally, the process of re- start rejuvenation was modeled and constructed the system state transition model. The simulation experiments analyzed the constraint parameters of total cost much further. Compared with the traditional cyclical recovery strategy, the proposed method reduces highly the time and costs of emergency recovery and enhances the survivable performance of system. Key words： rejuvenation cost; surviable performance; recursive rejuvenation; stochastic petri net

关 键 词：恢复成本 生存性能 递归重启 SPNs 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]