Method and apparatus to estimate downtime and cost of downtime in an information technology infrastructure

摘要

An availability analysis software tool for estimating the downtime and cost of downtime in an information technology network. The tool can create a computer element model of software and hardware components in the network. The elements are combinable into logical group models and element and group models are further combinable into a model tree to simulate the network. Each element is assigned a workload and the sum of element workloads determine group and model workloads. Simulated element failures reduce workload in the group and model tree. Cost per unit workload lost during an element failure are assignable, wherein the estimated cost of downtime caused by element failures is determined by multiplying the amount of workload that is lost from the simulated element failures by the cost per unit workload.