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Proxmox High Availability

By : CHENG MAN

4.3 (4)

Proxmox High Availability

4.3 (4)

By: CHENG MAN

Overview of this book

If you want to know the secrets of virtualization and how to implement high availability on your services, this is the book for you. For those of you who are already using Proxmox, this book offers you the chance to build a high availability cluster with a distributed filesystem to further protect your system from failure.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Basic Concepts of a Proxmox Virtual Environment

1. Basic Concepts of a Proxmox Virtual Environment

Introduction to Proxmox Virtual Environment

Introduction to server virtualization

Server virtualization basics – guest versus host

Comparing types of server virtualization software

Basic administration on Proxmox VE

Virtualization options in Proxmox VE

Virtual disk options under Proxmox VE

Introducing the OpenVZ template

Summary

2. Getting Started with a High Availability (HA) Environment

2. Getting Started with a High Availability (HA) Environment

What is a high availability (HA) environment?

Introducing a Proxmox VE cluster

System requirements for the Proxmox cluster

HA capability for Proxmox with a two-node cluster

Summary

3. Key Components for Building a Proxmox VE Cluster

3. Key Components for Building a Proxmox VE Cluster

Key component 1 – shared storage

Key component 2 – reliable network

Key component 3 – a fencing device

Key component 4 – quorum disk

Summary

4. Configuring a Proxmox VE Cluster

4. Configuring a Proxmox VE Cluster

Configuring a network for a Proxmox VE cluster

Preparing storage for a Proxmox cluster

Configuring a Proxmox VE cluster

Network fencing with a Cisco switch via SNMP

Building a Gluster filesystem for a Proxmox cluster

Building a Ceph filesystem for a Proxmox cluster

Summary

5. Testing on a Proxmox Cluster

5. Testing on a Proxmox Cluster

Storage preparation for an LVM shared storage

Demonstration of live migration

Building an HA-protected VM

Testing with the cluster environment

Setting up a failover domain

Summary

6. System Migration of an Existing System to a Proxmox VE Cluster

6. System Migration of an Existing System to a Proxmox VE Cluster

System migration of an existing Linux platform

Live migration of a physical machine to a KVM

System migration of a Windows platform

System migration from VMware to Proxmox

System migration from XenServer / Hyper-V Server to Proxmox

Summary

7. Disaster Recovery on a Proxmox VE Cluster

7. Disaster Recovery on a Proxmox VE Cluster

Backup process for VMs in Proxmox

The restore process of VMs in Proxmox

Setting up a scheduled backup for the VMs

System recovery of a Proxmox cluster failure

Summary

8. Troubleshooting on a Proxmox Cluster

8. Troubleshooting on a Proxmox Cluster

Troubleshooting system access problems

Troubleshooting system migration problems

Troubleshooting system storage problems

Troubleshooting Proxmox cluster problems

Summary

Index

Index

Chapter 7. Disaster Recovery on a Proxmox VE Cluster

In the previous chapters, we covered different concepts of virtualization methods and the components needed for a cluster environment. We learned how to build shared storages with DRBD, GlusterFS, CEPH, and others, and how to implement them under Proxmox to build an HA environment. We also learned how to move our existing operating systems to Proxmox.

You might notice that you are centralizing your production platforms in one server. From a system administrator's perspective, if we do not have any backup in hand, it is very dangerous. Therefore, we will go through the backup and restore processes of Proxmox in this chapter, including the following topics:

Backup and restore processes of OpenVZ containers and KVM
Creating a system template for OpenVZ for further use
Backup and restore processes for a Proxmox cluster
Recovering from a failed Proxmox cluster

Let's find out how we can make our own backup for the VMs. Note that...

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