Reliability analysis of imperfect coverage systems with a shared warm standby

Redundancy technique is commonly applied to satisfy the reliability requirements of fault-tolerant systems. Warm standby, a compromise between hot standby and cold standby in term of power consumption and recovery time, has attracted wide attention over the past several decades. However, the existin...

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Main Authors: Li Pei-Chang, Yuan Hong-Jie, Lan Jie
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201711901049
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author Li Pei-Chang
Yuan Hong-Jie
Lan Jie
author_facet Li Pei-Chang
Yuan Hong-Jie
Lan Jie
author_sort Li Pei-Chang
collection DOAJ
description Redundancy technique is commonly applied to satisfy the reliability requirements of fault-tolerant systems. Warm standby, a compromise between hot standby and cold standby in term of power consumption and recovery time, has attracted wide attention over the past several decades. However, the existing reliability analysis methods for warm standby system with imperfect coverage are difficult to deal with some cases, such as non-exponential time-to-failure distributions for the system components and the systems with shared standbys. In this paper, a new approach based on step function and impulse function is proposed to overcome the limitations of the existing approaches. The reliability of a system including shared standbys is deduced considering two kinds of imperfect fault coverage models, which contain Element Level Coverage (ELC) and Fault Level Coverage (FLC). The proposed approach can applicable to any type of time-to-failure distributions for the system components subject to imperfect fault coverage. A case study is presented to illustrate the applications and advantages.
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spelling doaj.art-3d75c1fabf274dedb73f77a8f884a5f32022-12-21T22:21:55ZengEDP SciencesMATEC Web of Conferences2261-236X2017-01-011190104910.1051/matecconf/201711901049matecconf_imeti2017_01049Reliability analysis of imperfect coverage systems with a shared warm standbyLi Pei-ChangYuan Hong-JieLan JieRedundancy technique is commonly applied to satisfy the reliability requirements of fault-tolerant systems. Warm standby, a compromise between hot standby and cold standby in term of power consumption and recovery time, has attracted wide attention over the past several decades. However, the existing reliability analysis methods for warm standby system with imperfect coverage are difficult to deal with some cases, such as non-exponential time-to-failure distributions for the system components and the systems with shared standbys. In this paper, a new approach based on step function and impulse function is proposed to overcome the limitations of the existing approaches. The reliability of a system including shared standbys is deduced considering two kinds of imperfect fault coverage models, which contain Element Level Coverage (ELC) and Fault Level Coverage (FLC). The proposed approach can applicable to any type of time-to-failure distributions for the system components subject to imperfect fault coverage. A case study is presented to illustrate the applications and advantages.https://doi.org/10.1051/matecconf/201711901049
spellingShingle Li Pei-Chang
Yuan Hong-Jie
Lan Jie
Reliability analysis of imperfect coverage systems with a shared warm standby
MATEC Web of Conferences
title Reliability analysis of imperfect coverage systems with a shared warm standby
title_full Reliability analysis of imperfect coverage systems with a shared warm standby
title_fullStr Reliability analysis of imperfect coverage systems with a shared warm standby
title_full_unstemmed Reliability analysis of imperfect coverage systems with a shared warm standby
title_short Reliability analysis of imperfect coverage systems with a shared warm standby
title_sort reliability analysis of imperfect coverage systems with a shared warm standby
url https://doi.org/10.1051/matecconf/201711901049
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AT yuanhongjie reliabilityanalysisofimperfectcoveragesystemswithasharedwarmstandby
AT lanjie reliabilityanalysisofimperfectcoveragesystemswithasharedwarmstandby