This paper outlines the key factors to consider when determining whether the mainframe or a distributed platform is the most cost effective option for a particular workload. These factors include:
โข Define a clear scope and objectives
โข Apply a standard financial analysis method
โข Allocate accurate mainframe and distributed costs
โข Compare IT management software. Donโt miss these hidden costs, examples from case studies are provided in this paper.
โข Include disaster recovery (DR) costs
โข Hardware sizing drives many costs and must be accurate
โข Consider cost savings of mainframeโs specialty hardware features
โข Identify z/OS software savings opportunities
โข Identify all platform support staff
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