I am a Systems/Software Engineer, who helps customers solve complex storage issues. Part of that role includes training the various individuals who support those customers as well as those customers. As another reviewer noted, all too often the "solution" is to just replace hardware. All too often, that does not address underlying issues.
As a result, I now take time during EVERY presentation to present the theories behind performance management. The importance of a book such as this is that it helps all of us better comprehend the WHY performance problems arise. Understanding the WHY allows us to identify the WHERE, which allows us to better design methods to avoid common pitfalls.
Few among us will be able to design a storage subsystem using modelling software. Still, it presents the use of such tools and the concept of designing a storage environment to avoid workload induced problems.
This book will be a valuable resource for myself and those to whom I present such material. This should be a valuable resource for anyone who deals with storage performance analysis.