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

Metric groups


So far, we have covered the concepts of compute, storage, and network monitoring. Now we are ready to dive into the counters. The counters are accessible via GUI from these three tools: esxtop, vCenter, and vRealize Operations.

They serve different purposes, as follows:

  • esxtop: It operates at an individual host level, providing the deepest and most granular detail. It can go down to a granularity of 2 seconds. This is useful when you already know which ESXi host and VM you want to troubleshoot. This book does not cover the counters in esxtop.

  • vCenter Server: It complements esxtop by providing a view across hosts and other objects in vSphere. However, its granularity is at an interval of 20 seconds.

  • vRealize Operations: It complements vCenter by extending the coverage beyond vSphere. It can go up to the application level or down to the physical infrastructure. It also allows you to slice and dice the combined data. However, its default granularity is at an interval of 5 minutes...