Book Image

vSphere High Performance Cookbook - Second Edition - Second Edition

By : Kevin Elder, Christopher Kusek, Prasenjit Sarkar
Book Image

vSphere High Performance Cookbook - Second Edition - Second Edition

By: Kevin Elder, Christopher Kusek, Prasenjit Sarkar

Overview of this book

vSphere is a mission-critical piece of software for many businesses. It is a complex tool, and incorrect design and deployment can create performance related issues that can negatively affect the business. This book is focused on solving these problems as well as providing best practices and performance-enhancing techniques. This edition is fully updated to include all the new features in version 6.5 as well as the latest tools and techniques to keep vSphere performing at its best. This book starts with interesting recipes, such as the interaction of vSphere 6.5 components with physical layers such as CPU, memory, and networking. Then we focus on DRS, resource control design, and vSphere cluster design. Next, you’ll learn about storage performance design and how it works with VMware vSphere 6.5. Moving on, you will learn about the two types of vCenter installation and the benefits of each. Lastly, the book covers performance tools that help you get the most out of your vSphere installation. By the end of this book, you will be able to identify, diagnose, and troubleshoot operational faults and critical performance issues in vSphere 6.5.
Table of Contents (17 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Guest OS networking considerations


Refer to Chapter 3, Networking Performance Design, where the Selecting the correct virtual network adapter recipe talks about the trade-off factors in choosing the correct adapter.

For the best performance, use the VMXNET3 network adapter for operating systems in which it is supported. The VM must use a virtual hardware of version 7 or later, and VMware Tools must be installed in the guest operating system.

Note

If VMXNET3 is not supported in your guest operating system, use the enhanced VMXNET (which requires VMware Tools). Both the enhanced VMXNET (VMXNET2) and VMXNET3 support jumbo frames for better performance.

For the best networking performance, use network adapters that support hardware features, such as TCP checksum offload, TCP segmentation offload, and jumbo frames.

Ensure that the network adapters have the proper speed and duplex settings. Typically, for 10/100 NICs, set the speed and duplex. Make sure that the duplex is set to full duplex. For NICS...