Linux High Availability Clustering

RH436 HA Pacemaker centos / redhat linux cluster on vmware virtual machine connected through ISCSI network to storage

Last updated 2022-01-10 | 4.1

- Students should understand HA cluster concepts and how to manage different nodes
- start/stop services
- Students should understand Quorum
- Fencing
- implement different settings. Understand ZFS storage and how to share storage between nodes
- Students should be able to install
- configure two node cluster and provide highly available NFS service

What you'll learn

Students should understand HA cluster concepts and how to manage different nodes
start/stop services
Students should understand Quorum
Fencing
implement different settings. Understand ZFS storage and how to share storage between nodes
Students should be able to install
configure two node cluster and provide highly available NFS service

* Requirements

* RHCSA level in Linux
* VMware ESXI & VMware workstation
* Centos 7 DVD
* Internet to get access to centos repo

Description

2.5 hours gives you an introduction about Linux High Availability Cluster.

Please read it carefully and set your expectations based on the following. To don't waste your time or even gives me a bad review because you expect more than what inside the course. 

You are welcome to add any kind of reviews bad or good but please review it based on the course curriculum and what value you've got

This course helps you to understand high availability clustering by providing a strong concept and hands-on experience with Pacemaker and Corosync components of Red Hat / CentOS Enterprise High Availability Cluster. 

Also it is introducing you to other technologies, like ZFS storage to build more reliable environment for business. 

Introduction To Linux High Availability Clustering course gives a complete explanation about the functionality of every component in Cluster, and how these components work together. 

It gives detailed steps of how to install cluster software packages, how to configure and administrate High Availability Cluster

It is preferred and directed to system administrators RHCSA  Level ).

The course will cover exactly the following read it carefully.

1- Design a lab environment based on ESXi VMware virtualization to practice the cluster.

2- Explain Cluster software components and how they are communicating to each other. 

3- Install Linux cluster packages

4- Managing Cluster Services & Membership.

5- Very clear explanation about quorum and including all options. 

6- Very clear explanation about fencing concept and practice it.

7- Storage module included my first course about ZFS for free

8- Manage and configure ISCSI initiator.

9- One example to configure NFS service managed by HA cluster.

10- Manage and Configure Cluster logs.

If you feel that you know all of the above save your money and don't waste your time.  

If you decided to take this course I need you to know that first chapter is a little bit long because in my opinion it is very important to understand the architecture of the lab so you can build it step by step. 

once you have a proper lab you will find practicing the cluster is so easy. So, I recommend you to be patient. If you feel it sounds boring you can skip it and go a head for next chapter.  

I expect if you reached this line that means you understood what will be covered in the course and it is crystal clear for you.

I would like to remind you that Udemy gives you 30 days Money-Back Guarantee 100% No Questions Asked.

If you are interested in the course you can give it a try.  

Is it sounds cool. Wish you all the best :)

BR,

Muhamad ELkenany

Who this course is for:

  • This course is for system administrators who want the first step to learn high availability Linux 7 cluster
  • This course is for Linux administrators who want a step-by-step guide to setup a centos 7 high availability cluster

Course content

8 sections • 39 lectures

Welcome to the HA Course ! Preview 00:42

welcome

Course Overview Preview 08:45

Introduction to Linux 7 high availability clustering, who should be enrolled to this course and illustrating course contents.

Lab Setup Preview 03:45

List Hardware spics and Software needed also how can you get them

ESXI Installation Preview 05:36

Illustrating technical steps of installing and setting up VMware ESXi.

Network Setup Preview 03:25

Create and configure VMware ESXi network switches 

Installing Centos 7 Preview 04:34

Create the Cluster node Virtual Machine and Install CentOS 7.

Network Configuration Preview 04:07

Configure cluster nodes'  IP addresses

Local REPO Preview 07:38

Configure CentOS / HA-Cluster local repository | After recording the course I found that no need for the local repo you can skip it but I left it because might be some one need it.

High availability concepts

High availability concepts

Cluster Installation & Architecture Preview 04:42

Illustrate Red hat/CentOS 7 cluster main services and explain their functions.

Basic Cluster Installation Preview 08:18

Install and setup cluster packages

Managing Cluster Services & Membership Preview 01:45

Explaining some cluster commands like start, stop cluster services, also add and remove cluster nodes.

Managing Cluster Services & Cluster Nodes - Lab Preview 07:32

Start and stop cluster services on cluster nodes, also add and remove cluster nodes

Cluster services

Preparing and adjusting Lab parameters

Cluster Quorum Preview 05:08

Explain cluster quorum and votes calculation.

Managing Cluster Quorum - Lab Preview 02:59

Illustrate and Explain the cluster quorum information.

Last_Man_Standing Preview 04:58

Illustrate and Explain the cluster option Last-man-standing.

Auto_Tie_Breaker Preview 03:39

Illustrate and Explain the cluster option Auto-tie-breaker

Last_Man_Standing & Auto_Tie_Breaker Preview 03:07

Illustrate and Explain the cluster options Last-man-standing and auto-tie-breaker

Wait_For_All Preview 01:29

Illustrate and Explain the cluster option Wait-for-all

Quourm Options Summary Preview 01:36

Two Node Cluster Preview 02:13

Explain Two_node cluster issues, and what is proper cluster options needed for this case.

Two Node Cluster - Lab Preview 02:39

Configure two_node Cluster.

Cluster quorum

Understanding Cluster Quorum

Cluster Fencing Overview Preview 02:04

Explain Cluster Fencing and how it is protecting shared data.

Managing Cluster Fencing Preview 10:06

Create and configure cluster fencing devices and agents.

Cluster Fencing

Understanding Cluster Fencing

Storage Area Network with Oracle ZFS on Centos Linux : L1 FREE ACCESS ! Preview 00:48

FREE ACCESS to my ZFS storage course (L1). That's a special for you only.

ISCSI Initiator Preview 02:28

Introduction to ZFS storage and ISCSI initiators.

Managing ISCSI Initiator Preview 15:05

Manage and configure ISCSI initiator.

Cluster Shared storage

Configuring storage data-protection

Creating & Managing Cluster Resources Preview 04:15

Explain how cluster manage application resources and explain cluster resource agents.

Creating & Managing Cluster Resources Preview 10:01

Create and manage resource agents.

Active/Passive Highly Available NFS service Preview 15:57

This lab will explain how to configure HA NFS service 

Cluster Resources

Understanding Cluster resources

Troubleshooting High-Availability Clusters Preview 01:30

Explain how to configure cluster logs.

Configuring Cluster Logs Preview 04:09

Manage and Configure Cluster logs.

Cluster logging

Cluster logging

Thank You ! Preview 00:15

Thanks for completing the course