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Details for article 11 of 11 found articles
| Title: |
Reliability Evaluation of Distributed Computer Systems Subject to Imperfect Coverage and Dependent Common-Cause Failures |
| Author: |
Liudong Xing Akhilesh Shrestha |
| Appeared in: |
Journal of computer science |
| Paging: | Volume 2 (2006) nr. 6 pages 473-479 |
| Year: |
2006 |
| Contents: |
Imperfect coverage (IPC) occurs when a malicious component failure causes extensivedamage due to inadequate fault detection, fault location or fault recovery. Common-cause failures(CCF) are multiple dependent component failures within a system due to a shared root cause. Bothimperfect coverage and common-cause failures can exist in distributed computer systems and cancontribute significantly to the overall system unreliability. Moreover they can complicate the reliabilityanalysis. In this study, we propose an efficient approach to the reliability analysis of distributedcomputer systems (DCS) with both IPC and CCF. The proposed methodology is to decouple the effectsof IPC and CCF from the combinatorics of the solution. The resulting approach is applicable to thecomputationally efficient binary decision diagrams (BDD) based method for the reliability analysis ofDCS. We provide a concrete analysis of an example DCS to illustrate the application and advantages ofour approach. Due to the consideration of IPC and CCF, our approach can evaluate a wider class ofDCS as compared with existing approaches. Due to the nature of the BDD and the separation of IPCand CCF from the solution combinatorics, our approach has high computational efficiency and is easyto implement, which means that it can be easily applied to the accurate reliability analysis of large-scaleDCS subject to IPC and CCF. The DCS without IPC or CCF appear to be special cases of ourapproach. |
| Publisher: |
Science Publications (provided by DOAJ) |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 11 of 11 found articles
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