Functional reliability of a real-time redundant computational process in cluster architecture systems

Functional reliability models are proposed for a real-time redundant computational process when an incoming request flow is distributed for redundant execution of request copies in several nodes of a cluster architecture system operating under conditions of faults, failures, and errors in nodes; in...

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Bibliographic Details
Published in:Automatic control and computer sciences Vol. 49; no. 1; pp. 46 - 56
Main Authors: Bogatyrev, V. A., Bogatyrev, A. V.
Format: Journal Article
Language:English
Published: Heidelberg Allerton Press 01.01.2015
Subjects:
Computer Science
Control Structures and Microprogramming
computing system
requests
redundant computations
real time
reliability
ISSN:0146-4116, 1558-108X
Online Access:Get full text
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Summary:Functional reliability models are proposed for a real-time redundant computational process when an incoming request flow is distributed for redundant execution of request copies in several nodes of a cluster architecture system operating under conditions of faults, failures, and errors in nodes; in this case, the reliability, integrity, and timeliness of executing functional requests must be ensured. The effect of the organization and redundancy rate of computations on their timeliness and reliability, as well as on the average request waiting time, is analyzed taking into account faults, failures, and errors in cluster nodes.
ISSN:0146-4116
1558-108X
DOI:10.3103/S0146411615010022