Book Image

VMware vSphere 6.5 Cookbook - Third Edition

By : Abhilash G B, Cedric Rajendran
Book Image

VMware vSphere 6.5 Cookbook - Third Edition

By: Abhilash G B, Cedric Rajendran

Overview of this book

VMware vSphere is a complete and robust virtualization product suite that helps transform data centers into simplified on-premises cloud infrastructures, providing for the automation and orchestration of workload deployment and life cycle management of the infrastructure. This book focuses on the latest release of VMware vSphere and follows a recipe-based approach, giving you hands-on instructions required to deploy and manage a vSphere environment. The book starts with the procedures involved in upgrading your existing vSphere infrastructure to vSphere 6.5, followed by deploying a new vSphere 6.5 environment. Then the book delves further into the procedures involved in managing storage and network access to the ESXi hosts and the virtual machines running on them. Moving on, the book covers high availability and fair distribution/utilization of clustered compute and storage resources. Finally, the book covers patching and upgrading the vSphere infrastructure using VUM, certificate management using VMCA, and finishes with a chapter covering the tools that can be used to monitor the performance of a vSphere infrastructure.
Table of Contents (18 chapters)

Configuring vSphere HA Admission Control

As with any environment, not all workloads are the same and we will need to be selective about the virtual machines that need to be restarted, and more importantly the sequence of restart. Admission control configuration plays a key role in ensuring that the right virtual machines are restarted in a specific order and ensuring that it does not do so at the cost of performance degradation of the other running VMs.

There are three admission control policies:

  • Cluster resource percentage
  • Slot Capacity
  • Specify dedicated failover hosts

In this recipe, we will discuss configuring admission control and its nuances.

Getting ready

Needless to say; ensure vSphere HA is configured. At a high...