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

Understanding the Proxmox cluster filesystem


The Proxmox cluster filesystem (pmxcfs) in short is an integral part of how a Proxmox cluster functions. As the name implies, it is basically a common filesystem shared among all the nodes in a Proxmox cluster. Pmxcfs is a SQLite database-driven filesystem where all the Proxmox configuration files are stored. Any changes to these files are replicated in real time using the corosync cluster engine.

Note

For more information on corosync, visit https://en.wikipedia.org/wiki/Corosync_Cluster_Engine.

Getting ready

To understand pmxcfs, we are going to take a look at how the directory structure is laid out in the filesystem. Pmxcfs can be accessed from any nods in the cluster. Log in as the root into a node through SSH or the Proxmox GUI | Shell.

How it works…

Pmxcfs is mounted under /etc/pve. The following table shows the directory structure in /etc/pve and the type of information it contains:

Directory path

Type of data

/etc/pve/cluster.conf

This is...