The Myth of Precision Planning: Understanding Capacity in an Age of Virtual Parallelism.
Tim R. Norton · Int. CMG Conference · 2007
Virtualization is the current hot solution for a variety of computing problems. However, the complexities it introduces create additional problems when trying to precisely plan capacity. Virtualization is really the application of techniques to increase parallelism, either actual or perceived, and has been used in many different ways for a very long time. This paper explores many of the techniques used to virtualize and parallelize resources, the impact of those techniques on capacity and the resulting changes in the perception of precision for both planning needs and measuring usage.