14.4. Lessons Learned in the Real World
During the course of my travels, I've had the privilege of learning from my customers as much as, if not more than, they have learned from me. The following section discusses lessons learned from years of iterative testing and tuning—I hope you find these beneficial and use them to avoid what can otherwise amount to very time-consuming if not just plain, old, expensive mistakes.
14.4.1. Server IT Consolidation for SAP
When I am involved with stress testing new server platforms to be eventually deployed to Production, I typically focus on delta testing. That is, I want to understand how the difference in CPU speeds, system bus architecture, RAM or memory subsystem architecture, and so on between different ...