Book Image

Proxmox Cookbook

By : Wasim Ahmed, Ravi K Jangid
Book Image

Proxmox Cookbook

By: Wasim Ahmed, Ravi K Jangid

Overview of this book

Proxmox VE's intuitive interface, high availability, and unique central management system puts it on par with the world’s best virtualization platforms. Its simplicity and high quality of service is what makes it the foremost choice for most system administrators. Starting with a step-by-step installation of Proxmox nodes along with an illustrated tour of Proxmox graphical user interface where you will spend most of your time managing a cluster, this book will get you up and running with the mechanisms of Proxmox VE. Various entities such as Cluster, Storage, and Firewall are also covered in an easy to understand format. You will then explore various backup solutions and restore mechanisms, thus learning to keep your applications and servers safe. Next, you will see how to upgrade a Proxmox node with a new release and apply update patches through GUI or CLI. Monitoring resources and virtual machines is required on an enterprise level, to maintain performance and uptime; to achieve this, we learn how to monitor host machine resources and troubleshoot common issues in the setup. Finally, we will walk through some advanced configurations for VM followed by a list of commands used for Proxmox and Ceph cluster through CLI. With this focused and detailed guide you will learn to work your way around with Proxmox VE quickly and add to your skillset.
Table of Contents (18 chapters)
Proxmox Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Configuring High Availability


Proxmox High Availability (HA) enables a HA configured virtual machine to automatically restart on another node in the cluster if the physical node fails. Proxmox HA is built on long standing proven Linux HA technology. In this recipe, we are going to see how to configure HA in Proxmox to automigrate a virtual machine during a node or network failure.

Getting ready

There are three primary requirements before HA can be configured:

  • Cluster: Since the main function of HA is to auto restart a VM from a failed node to a different node, it is goes without saying that Proxmox HA can only be configured on a cluster. This is one of the minimum requirements of Proxmox HA.

  • Fencing: This the second most important requirement for HA. In order to configure HA, there must be a fencing device or hardware in place. Currently, there is no software-based fencing. In simple words, fencing is when a cluster forces or knocks down a faulty node and prevents it from coming back online...