Title | Approximate Availability Analysis of VAXcluster Systems |
Publication Type | Journal Article |
Year of Publication | 1989 |
Authors | OC Ibe, RC Howe, and KS Trivedi |
Journal | IEEE Transactions on Reliability |
Volume | 38 |
Issue | 1 |
Start Page | 146 |
Pagination | 146 - 152 |
Date Published | 01/1989 |
Abstract | 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 |
DOI | 10.1109/24.24588 |
Short Title | IEEE Transactions on Reliability |