Server virtualization offers new opportunities to reduce high-cost software environments by refreshing servers on shorter time intervals than current practice (e.g., 3-5 years). Multiple strategies are now available for how to add capacity to a virtualized resource cluster, indicating not all virtualized servers should be refreshed on the same fixed time schedule. The whitepaper shows four alternatives to incrementally add capacity, over time, for a resource cluster of MS SQL Server Enterprise. The NPV cost for the alternatives are: $15,000, $93,000, $173,000, and $357,000. The first two alternatives represent optimally solved strategies for adding required capacity. The latter two higher cost alternatives represent holding servers for a period of four years before refresh.
One year server refresh.pdf (411.1 K)