International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 89 - Number 7 |
Year of Publication: 2014 |
Authors: S. C. Malik, V. J. Munday |
10.5120/15516-4354 |
S. C. Malik, V. J. Munday . Stochastic Modelling of a Computer System with Hardware Redundancy. International Journal of Computer Applications. 89, 7 ( March 2014), 26-30. DOI=10.5120/15516-4354
In this paper, an effort for the stochastic analysis of a computer system has been made considering the idea of hardware redundancy in cold standby. The hardware and software failures occur independently in the computer system with some probability. A single server is employed immediately to conduct hardware repair and software up-gradation on need basis. The repair and up-gradation activities performed by the server are perfect. The time to hardware and software failures follows negative exponential distribution, whereas the distributions of hardware repair and software up-gradation times are taken as arbitrary with different probability density functions. The expressions for various reliability measures are derived in steady state using semi-Markov process and regenerative point technique. The graphs are drawn for arbitrary values of the parameters to depict the behaviour of some important performance measures of the system model.