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

Managing snapshots


In this section, we are going to see how to create snapshots of a KVM-based VM and roll back to the previous state.

Getting ready

Snapshots can be created and rolled back through the Proxmox GUI. The Snapshots menu is only available through a VM-specific tabbed menu.

How to do it…

The following steps show how to create a snapshot of a VM:

  1. Select a VM for which snapshots need to be created and click on the Snapshots tabbed menu.

  2. Click on Take Snapshot to open a dialog box.

  3. Enter the name of the snapshot. The string must start with at least one alphabetic letter.

  4. If the snapshot is being created for a powered up VM, then select the Include RAM checkbox or else uncheck it.

    Note

    This option will save the state of a running VM, saving the content of the memory. If it is not selected, then the snapshot is created only for the disk image. This can lead to filesystem inconsistency when reverting back.

  5. Enter a description for the snapshot.

  6. Click on the Take Snapshot button to create the snapshot...