Skip to Main Content
The Complete VMware vSphere Guide
book

The Complete VMware vSphere Guide

by Mike Brown, Hersey Cartwright, Martin Gavanda, Andrea Mauro, Karel Novak, Paolo Valsecchi
November 2019
Beginner content levelBeginner
768 pages
32h 29m
English
Packt Publishing
Content preview from The Complete VMware vSphere Guide

Admission control

Admission control guarantees vSphere HA failover by ensuring enough spare failover capacity within the cluster. If you have four ESXi hosts and all of them are utilizing almost 100% of the total compute capacity, and one of the ESXi hypervisors fails, the VMs will be restarted, but the remaining hosts won't be able to provide the required number of the resources other VMs thus performance will be degraded. Admission control takes care of that by reserving resources for the failover.

Configuration is at the cluster level under the vSphere Availability section, as follows:

You can define the host's failover capacity using one ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Learning VMware vSphere

Learning VMware vSphere

Rebecca Fitzhugh, Abhilash G B
Networking for VMware Administrators

Networking for VMware Administrators

Christopher Wahl, Steven Pantol

Publisher Resources

ISBN: 9781838985752Supplemental Content