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You're reading from VMware vSphere 5.x Datacenter Design Cookbook This recipe-driven tutorial is the easy way to master VMware vSphere to design a virtual datacenter. You'll learn in simple steps that cover everything from initial groundwork to creating professional design documentation.

Product type Paperback

Published in Jan 2014

Publisher Packt

ISBN-13 9781782177005

Length 260 pages

Edition Edition

Tools

vSphere

Concepts

Cloud Computing

Author (1):

Hersey Cartwright

View More author details

Table of Contents (19) Chapters

VMware vSphere 5.x Datacenter Design Cookbook

Credits

About the Author

Acknowledgments

About the Reviewers

www.PacktPub.com

Preface

1. The Virtual Datacenter

2. The Discovery Process FREE CHAPTER

3. The Design Factors

4. The vSphere Management Design

5. The vSphere Storage Design

6. The vSphere Network Design

7. The vSphere Compute Design

8. The vSphere Physical Design

9. The Virtual Machine Design

10. Disaster Recovery and Business Continuity

11. The Design Documentation

Index

Reserving HA resources to support failover

When vSphere High Availability (HA) has been enabled on a vSphere cluster, the virtual machines running on the cluster are protected from a host hardware failure or virtual machine guest operating system crash.

In the event that a host suffers a hardware failure or if ESXi crashes, the virtual machines are restarted on the surviving hosts in the cluster. Resources must be reserved in the cluster to guarantee that the necessary resources are available to restart the virtual machines.

How to do it…

Edit the settings of the vSphere cluster to enable High Availability.
Enable the HA Admission Control policy.
Select the HA Admission Control policy that should be applied to the cluster.
Define the failover settings required based on the HA Admission Control policy selected.

How it works…

VMware HA Admission Control ensures that enough physical resources are available to meet the CPU and memory reservation requirements needed to restart the virtual machines on...