| Autor: |
Thein, Thandar, Chi, Sung-Do, Park, Jong Sou |
| Zdroj: |
Software Engineering, Artificial Intelligence, Networking & Parallel/distributed Computing; 2008, p189-200, 12p |
| Abstrakt: |
Unplanned computer system outages are more likely to be the result of software failures than of hardware failures. Moreover, software applications executing continuously for a long period of time show a degraded performance and/or an increased occurrence rate of hang/crash failures. This phenomenon has been referred to as software aging. In this paper, we have conducted a study of virtualization technology and software rejuvenation that follows a proactive fault management approach to counter act the software aging. We present a model to evaluate the effectiveness of proactive fault management approach with the use of virtualization technology in operational software systems, and express downtime and costs due to downtime during rejuvenation in terms of the parameters in that model. We perform mathematical derivation and use SHARPE (Symbolic Hierarchical Automated Reliability and Performance Evaluator) tool to evaluate the feasibility of our model. Our results show that proposed approach can provide uninterrupted availability of the services. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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