Yadavalli, Venkata S. SarmaJeganathan, K.2016-06-202016-06-202016Yadavalli, VSS & Jeganathan, K 2016, 'A finite source perishable inventory system with second optional service and server interruptions', Orion, vol. 32, no. 1, pp. 23-53.0259-191X (print)2224-0004 (online)10.5784/32-1-528http://hdl.handle.net/2263/53260In this article, a service facility inventory system with server interruptions and a nite number of sources are considered. The inventory is replenished according to (s; S) ordering policy. Using the matrix methods, the stationary distribution of the stock level, server status and waiting area level is obtained in the steady state case. The Laplace-Stieltjes transform of the waiting time of the tagged customer is derived. Many impartment system performance measures are derived and the total expected cost rate is computed under a suitable cost structure. The results are illustrated numerically.en© 2016 Operations Research Society of South AfricaEssential and optional serviceInventory with service timeService interruptionRepairFinite sourceArticle