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

Storage counters at the datastore level


vCenter only provides the following screen for datastores. It is a fixed set of charts, with fixed configuration.

Datastore counters provided by vCenter

The complete list of charts available in vCenter is listed as follows:

  • Storage I/O Control Normalized Latency

  • Storage I/O Control Normalized Aggregate IOPS

  • Average Device Latency per host (Top 10)

  • Maximum Queue Depth per host (Top 10)

  • Read IOPS per host (Top 10)

  • Write IOPS per host (Top 10)

  • Average Read Latency per VM vDisk (Top 10)

  • Average Write Latency per VM vDisk (Top 10)

  • Read IOPS per VM vDisk (Top 10)

  • Write IOPS per VM vDisk (Top 10)

As you can see, the list is rather limited. For example, there are no counters for throughput, be it read, write, or total. Most charts only show the top 10 data points.

vRealize Operations provides a richer set of data for storage at the datastore level, including IOPS, throughput, latency, and outstanding I/O. For most of them, you get the data for read, write, and total.

In...