In Part I, Part II and Part III of this blog post series, we reviewed methods of running benchmark tests on a Virtual SAN cluster using three different methods; synthetic I/O Tools such is Iometer, pre-created application I/O trace replay files available for download, or custom created application I/O trace replay. Once you are running benchmark testing, there will be the need to assess and analyze the performance results of your Virtual SAN cluster, and how they meet the needs of the target applications within your environment . In this post, we will review some key concepts in performing a performance analysis of your Virtual SAN solution.