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VMware vSphere 5.1 Cookbook

VMware vSphere 5.1 Cookbook

By : Abhilash G B
5 (3)
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VMware vSphere 5.1 Cookbook

VMware vSphere 5.1 Cookbook

5 (3)
By: Abhilash G B

Overview of this book

Amidst all the recent competition from Citrix and Microsoft, VMware's vSphere product line is still the most feature rich and futuristic product in the virtualization industry. Knowing how to install and configure vSphere components is important to give yourself a head start towards virtualization using VMware. If you want to quickly grasp the installation and configuration procedures, especially by using the new vSphere 5.1 web client, this book is for you.VMware vSphere 5.1 Cookbook will take you through all the steps required to accomplish a task with minimal reading required. Most of the tasks are accompanied with relevant screenshots with an intention to provide a visual guidance as well.The book has many useful recipes that will help you progress through the installation of VMware ESXi 5.1 and vCenter Server 5.1. You will learn to use Auto Deploy and Image Profiles to deploy stateless/stateful ESXi servers, configure failover protection for virtual machines using vSphere HA, configure automated load balancing using vSphere DRS and DPM. Finally, the book guides you through upgrading or patching ESXi servers using VMware Update Manager and also deploying and configuring vSphere Management Assistant (VMA) to be able to run scripts to manage the ESXi servers.
Table of Contents (20 chapters)
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VMware vSphere 5.1 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Configuring vSphere HA admission control


A well-configured HA cluster will have enough free resources to restart all of the business-critical VMs running on the hosts, in the event of host failures. This amount of free resources is referred to as the failover capacity.

Failover capacity determines the number of the ESXi hosts that can fail in an HA cluster, and still leave enough resources to support all of the powered-on VMs. We can use admission control to control and monitor the failover capacity.

There are three admission control methods (policies):

  • Define the failover capacity by reserving a static number of hosts

  • Define the failover capacity by reserving a percentage of the cluster resources

  • Specify dedicated failover hosts

Note

Note that admission control can be disabled by selecting the Do not reserve failover capacity option.

Any operation that violates the resource constraints imposed by the admission control policy will not be permitted. Some of these operations include a VM power-on...

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