Title :
Stochastic Petri net modeling of VAXcluster system availability
Author :
Ibe, Oliver C. ; Sathaye, Archana ; Howe, Richard C. ; Trivedi, Kishor S.
Author_Institution :
Digital Equipment Corp., Andover, MA, USA
Abstract :
A VAXcluster is a closely coupled multicomputer system that consists of two or more VAX computers, one or more hierarchical storage controllers (HSCs), two or more disks, and a tar coupler. The Markov model of VAX cluster system availability suffers from state-space explosion as the number of VAX computers in the cluster increases. This has necessitated the use of approximate Markov models. The authors develop exact availability models of VAXcluster systems by means of stochastic Petri nets
Keywords :
Markov processes; Petri nets; modelling; multiprocessing systems; performance evaluation; Markov model; Stochastic Petri net modelling; VAXcluster system availability; exact availability models; hierarchical storage controllers; tar coupler; Computer network reliability; Computer science; Drives; Explosions; Identity-based encryption; Network servers; Petri nets; State-space methods; Stochastic systems; Weight control;
Conference_Titel :
Petri Nets and Performance Models, 1989. PNPM89., Proceedings of the Third International Workshop on
Conference_Location :
Kyoto
DOI :
10.1109/PNPM.1989.68545
