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

Adding nodes to a cluster


After the cluster is created, we have to add additional nodes to complete the cluster role. A Proxmox cluster requires a minimum of three nodes for proper cluster creation. With three nodes, a quorum is possible, which allows clusters to be online and function properly. It is also possible to create a cluster with only two nodes, but it's not recommended. With only two nodes, a majority vote is not possible for cluster election. For learning purposes or for a very small virtual environment, a two node cluster is an option.

Getting ready

The task of adding nodes also needs to be accomplished through the CLI. As of Proxmox VE 3.4, it is not possible to add nodes to a cluster through the Proxmox GUI. Check to ensure that the time and date are synchronized between nodes. The process of cluster creation uses the cryptograph method, and it is important that all nodes have same time and date.

How to do it…

Use the following steps, to add nodes to a cluster:

  1. Log in as the root...