Book Image

The Complete VMware vSphere Guide

By : Mike Brown, Hersey Cartwright, Martin Gavanda, Andrea Mauro, Karel Novak, Paolo Valsecchi
Book Image

The Complete VMware vSphere Guide

By: Mike Brown, Hersey Cartwright, Martin Gavanda, Andrea Mauro, Karel Novak, Paolo Valsecchi

Overview of this book

vSphere 6.7 is the latest release of VMware's industry-leading virtual cloud platform. By understanding how to manage, secure, and scale apps with vSphere 6.7, you can easily run even the most demanding of workloads. This Learning Path begins with an overview of the features of the vSphere 6.7 suite. You'll learn how to plan and design a virtual infrastructure. You'll also gain insights into best practices to efficiently configure, manage, and secure apps. Next, you'll pick up on how to enhance your infrastructure with high-performance storage access, such as remote direct memory access (RDMA) and Persistent memory. The book will even guide you in securing your network with security features, such as encrypted vMotion and VM-level encryption. Finally, by learning how to apply Proactive High Availability and Predictive Distributed Resource Scheduler (DRS), you'll be able to achieve enhanced computing, storage, network, and management capabilities for your virtual data center. By the end of this Learning Path, you'll be able to build your own VMware vSphere lab that can run high workloads. This Learning Path includes content from the following Packt products: VMware vSphere 6.7 Data Center Design Cookbook - Third Edition by Mike Brown and Hersey Cartwright Mastering VMware vSphere 6.7 - Second Edition by Martin Gavanda, Andrea Mauro, Karel Novak, and Paolo Valsecchi
Table of Contents (21 chapters)

VMware vSphere HA

vSphere HA is the most commonly used technology in the vSphere Suite in terms of HA. vSphere HA is responsible for restarting VMs in cases of ESXi downtime. Highlighting the word restart is crucial. There is a hard restart of the VM on the other ESXi hypervisor within the same vSphere cluster.

Keep that in mind that your OS will boot from scratch after the HA event because, in such an event, it is not possible to synchronize the memory of the VM between hosts.

We will have a look at the different aspects of the vSphere HA in the next few sections, but now let's have a look at how to enable HA.

vSphere HA configuration

Configuring vSphere HA is a part of the cluster configuration in vSphere Web Client...