计算机工程

作者：DODONOV Oleksandr, JIANG Bo, DODONOV Vadym

单位：1. Institute for Information Recording of National Academy of Sciences of Ukraine, Kyiv 03113, Ukraine;2. The 32nd Research Institute of China Electronics Technology Group Corporation, Shanghai 201808, China;3. Institute for System Research and Information Technologies of the Ukrainian Academy of Sciences, Kyiv 03179, Ukraine

关键词：survivability,evaluation,common information space,Software-Defined Architecture(SDA),complex computer systems

The survivability of computer systems should be guaranteed in order to improve its operation efficiency,especially for the efficiency of its critical functions.This paper proposes a decentralized mechanism based on Software-Defined Architecture(SDA).The concepts of critical functions and critical states are defined,and then,the critical functional parameters of the target system are collected and analyzed.Experiments based on the analysis results are performed for reconfiguring the implementations of the whole system.A formal model is presented for analyzing and improving the survivability of the system,and the problem investigated in this paper is reduced to an optimization problem for increasing the system survival time.

来源：2019年第7期

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