Approximate Availability Analysis of VAXcluster Systems


Journal Article

We solve for the availability of an n-processor VAXcluster system using a hierarchical approach that allows us to: 1) obtain a closed-form answer to an apparently difficult problem, and 2) determine the optimal number of processors in the cluster for a given set of cluster parameters. Our novel approach is a 2-level hierarchical model in which the lower-level model is a 9-state Markov chain that is solved in a closed form. The 9-state Markov chain is then aggregated into a 3-state device analogous to a diode. Subsequently, the system availability is computed by analyzing a simple network. © 1989 IEEE

Full Text

Duke Authors

Cited Authors

  • Ibe, OC; Howe, RC; Trivedi, KS

Published Date

  • January 1, 1989

Published In

Volume / Issue

  • 38 / 1

Start / End Page

  • 146 - 152

Electronic International Standard Serial Number (EISSN)

  • 1558-1721

International Standard Serial Number (ISSN)

  • 0018-9529

Digital Object Identifier (DOI)

  • 10.1109/24.24588

Citation Source

  • Scopus