Effect of Maintenance on the Dependability and Performance of Mulitprocessor Systems

Author

Das, Chita R. ; Bhuyan, Laxmi N. ; Sarma, V.V.S.

Author_Institution

Department of Electrical Engineering; The Pennsylvania State University; University Park, Pennsylvania 16802 USA.

Issue

2

fYear

1987

fDate

6/1/1987 12:00:00 AM

Firstpage

208

Lastpage

215

Abstract

This paper presents analytic models for dependability and performance evaluation of multiprocessor systems with both on-line and off-line maintenance. Markov models are developed to compute the system reliability and performance availability incorporating the reliability of the maintenance processor. The maintenance processor failure is considered separately in order to emphasize its effect on system performance and dependability. The reliability of the maintenance processor can not be ignored for degradable multiprocessors. Probabilistic models are presented to compute the system downtime and the service cost for three off-line maintenance policies: scheduled maintenance (SM), unscheduled maintenance (UM), and scheduled & unscheduled maintenance (SUM). The SUM policy, that combines both SM and UM, can be used to give a compromise between cost and downtime.

Keywords

Availability; Costs; Degradation; Maintenance; Multiprocessing systems; Performance analysis; Processor scheduling; Reliability; Samarium; System performance; Availability; Dependability; Maintenance; Multiprocessor System;

fLanguage

English

Journal_Title

Reliability, IEEE Transactions on

Publisher

ieee

ISSN

0018-9529

Type

jour

DOI

10.1109/TR.1987.5222343

Filename

5222343