Book Image

Mastering Proxmox - Third Edition

By : Wasim Ahmed
Book Image

Mastering Proxmox - Third Edition

By: Wasim Ahmed

Overview of this book

Proxmox is an open source server virtualization solution that has enterprise-class features for managing virtual machines, for storage, and to virtualize both Linux and Windows application workloads. You'll begin with a refresher on the advanced installation features and the Proxmox GUI to familiarize yourself with the Proxmox VE hypervisor. Then, you'll move on to explore Proxmox under the hood, focusing on storage systems, such as Ceph, used with Proxmox. Moving on, you'll learn to manage KVM virtual machines, deploy Linux containers fast, and see how networking is handled in Proxmox. You'll also learn how to protect a cluster or a VM with a firewall and explore the new high availability features introduced in Proxmox VE 5.0. Next, you'll dive deeper into the backup/restore strategy and see how to properly update and upgrade a Proxmox node. Later, you'll learn how to monitor a Proxmox cluster and all of its components using Zabbix. Finally, you'll discover how to recover Promox from disaster strikes through some real-world examples. By the end of the book, you'll be an expert at making Proxmox work in production environments with minimal downtime.
Table of Contents (23 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Creating snapshots


A snapshot are a great way to preserve the state of a virtual machine. It is much faster than a full backup, since it does not copy all the data. A snapshot is not really a backup, in a way, and does not perform granular level backup. It captures the state at a point in time and allows rollback to that previous state. A snapshot can be really helpful when used in between full backups. The Take Snapshot option can be found under the Snapshots tabbed menu of the virtual machine. A newly installed VM without any snapshots will appear under the Snapshots menu, as shown in the following screenshot:

The actual snapshot creation process is very straightforward. Click on Take Snapshot to open the dialog box, and then just enter a Name, select or deselect the RAM content, and type in some Description. The Name textbox does not allow any spaces and the name must start with a letter of the alphabet. The following screenshot shows the snapshots creation dialog box for our example VM...