Book Image

VMware Performance and Capacity Management, Second Edition - Second Edition

By : Sunny Dua
Book Image

VMware Performance and Capacity Management, Second Edition - Second Edition

By: Sunny Dua

Overview of this book

Performance management and capacity management are the two top-most issues faced by enterprise IT when doing virtualization. Until the first edition of the book, there was no in-depth coverage on the topic to tackle the issues systematically. The second edition expands the first edition, with added information and reorganizing the book into three logical parts. The first part provides the technical foundation of SDDC Management. It explains the difference between a software-defined data center and a classic physical data center, and how it impacts both architecture and operations. From this strategic view, it zooms into the most common challenges—performance management and capacity management. It introduces a new concept called Performance SLA and also a new way of doing capacity management. The next part provides the actual solution that you can implement in your environment. It puts the theories together and provides real-life examples created together with customers. It provides the reasons behind each dashboard, so that you get the understanding on why it is required and what problem it solves. The last part acts as a reference section. It provides a complete reference to vSphere and vRealize Operations counters, explaining their dependencies and providing practical guidance on the values you should expect in a healthy environment.
Table of Contents (28 chapters)
VMware Performance and Capacity Management Second Edition
Credits
Foreword
Foreword
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
Part 1
Part 2
Part 3
Index

A shift in capacity management


Before we discuss how to perform capacity management in SDDC, let's discuss what changes drastically.

Let's take our restaurant analogy further:

Do you know how much food your diners should consume? You probably do. You've seen a lot of people dining in your restaurant, and you know roughly how much food a person, given his size and age, can consume.

Now, do you have authority on how much food they can order? No, you do not. If a diner wants to order three servings of fried rice for himself, it is his right. You can advise him, but you know you are not the one eating.

Let's take this to our IaaS now. It is up to the VM owner how big a VM he wants to order. In other words, capacity management no longer covers the VM. This is a big shift in capacity management. There is no capacity management for VMs. It has been replaced by VM rightsizing, which is handled by the application team.

Your scope has been reduced to the SDDC layer. Does it become simpler?

Not at all.

The...