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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

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Demonstration of live migration

What is the first benefit that we can enjoy after we have set up a Proxmox cluster? We are now able to perform live migration on our running VMs. Unlike offline migration, live migration allows you to have minimal downtime during the data migration from one cluster node to another.

Before moving on to the demonstration of live migration, do you remember that we created two VMs named VM 100 and VM 101 in Chapter 1, Basic Concepts of a Proxmox Virtual Environment, and two more VMs called VM 201, VM 202, VM 203, and VM 204 in Chapter 4, Configuring a Proxmox VE Cluster?

The following table shows the summary of the six VMs:

Host	VM ID	IP address	VM type	Storage type
vmsrv01	100	192.168.1.10	OpenVZ	Local
vmsrv01	101	192.168.1.11	KVM	Local
vmsrv01	201	192.168.2.11	KVM	DRBD
vmsrv01	202	192.168.2.12	OpenVZ	DRBD
vmsrv01	203	192.168.2.13	KVM	GlusterFS
vmsrv01	204	192.168.2.14	OpenVZ	GlusterFS

These VMs are being used to test the behavior...

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