HA is a combination of components and configurations that allows continuous operation of a computational environment. Basically, it means that even when unattended server hardware goes bad in a live environment, HA can manage the remaining servers on its own and keep a virtual environment running by automatically moving or migrating virtual machines from one node to another, while minimizing downtime as little as possible. It should be noted here that Proxmox HA does not provide zero downtime migration of VMs. When a node with VM goes down hard, for obvious reason the VM becomes fully inaccessible. What Proxmox HA does when that happens is, it automatically moves the VM configuration files to member nodes and starts. A properly configured HA should require very little actual user interaction during a hardware failure. Without HA in place, all nodes will require constant monitoring by a network manager in order to manually move virtual machines to healthy nodes when a node...
Mastering Proxmox - Third Edition
By :
Mastering Proxmox - Third Edition
By:
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
Free Chapter
Understanding Proxmox VE and Advanced Installation
Creating a Cluster and Exploring the Proxmox GUI
Proxmox under the Hood
Storage Systems
Installing and Configuring Ceph
KVM Virtual Machines
LXC Virtual Machines
Network of Virtual Networks
The Proxmox VE Firewall
Proxmox High Availability
Monitoring the Proxmox Cluster
Proxmox Production-Level Setup
Back Up and Restore Virtual Machines
Updating/Upgrading Proxmox
Proxmox Troubleshooting
Customer Reviews