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

Recovering from a network failure


The extent of network failure can span over multiple layers, causing interruption between the Proxmox node and the user, or between the storage node and Proxmox nodes. The failure can occur due to physical network interface failure or an accidental network cable pull from nodes. The network failure can also occur due to heavy network traffic, which may be caused by but not limited to running a backup task on the same network path. In most production environments, server nodes usually contain more than one network interface for redundancy to reduce the loss of network connectivity to a minimum. The three most common scenarios for network connectivity interruptions are explained in the following sections. 

Loss of connectivity between Proxmox nodes

In this scenario, network connectivity is only interrupted between Proxmox nodes in a cluster. When over half of the Proxmox nodes in a cluster cannot communicate with each other, a quorum cannot be established. If...