Description
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.
Lab Design : KVM based lab setup in this course module.
Subtitle is not added in this course module.
Course Content:
Introduction
- What is clustering & cluster types?
- Advantages of Clustering Servers
- Concepts and techniques
- Resource and resource groups
- Failover, Fencing, Shared Storage, Quorum
- Cluster Architecture
- Lab Setup using KVM Environment
- Configuring a Basic Cluster
- Configuring a fencing agent using KVM host mahcine
- Troubleshooting fencing device
Managing Cluster Nodes
- Starting & Stopping Cluster Services
- Enabling & Disabling the Cluster Services
- Adding & Removing A Cluster Node
- The Standby & unstandby Nodes
- Quorum Operations
- Lab Session on quorum
- Managing Quorum Calculations
- Cluster Setup Switches1) wait_for_all2) auto_tie_breaker
Creating and Configuring Resources
- Create and configure high-availability resources.
- Creating a clustered Apache service
- Managing Resources
Troubleshooting High-Availability Cluster
- Inspect and configure cluster logging
- Troubleshooting resource failures
- Troubleshooting cluster network issues
Complex Resource Group
- Configuring an Active/Passive NFS Resource Group
- Lab Session
Managing Constraints
- Types of constraints:
- Order, Location & Colocation Constraint
- Practice Lab Session
Two Node Cluster Issues
- No room for node failure
- Split Brain
- Fence death/fence racing
- The cluster does not start until both nodes have started.
- Practice Lab Session
Managing iSCSI Initiators
- iSCSI fundamentals
- Configuring an iSCSI Server
- Several types of backing Storage
- block, fileio, pscsi & ramdisk
- Creating iSCSI Target
- Lab Session to create a block backstore from the targetcli shell
Managing High Availability Logical Volumes
- Clustered LVM & HA-LVM
- Lab Session to shared a disk (lun) to all cluster nodes
- Practice Lab Session on HA-LVM
Managing Clustered Logical Volumes
- Active/Active configuration of logical volumes
- Distributed Lock Manager (DLM) for lock management
- clvmd daemon
- Practice Lab Session
Global File System 2 (GFS2)
- GFS2 concepts
- Creating a GFS2 formatted Cluster File Systems
- Managing a GFS2 File System
- Managing a GFS2 Resource in the cluster
- Growing & Repairing a GFS2 File System
Who this course is for:
- Linux High Availability Clustering course is aimed at senior system administrators responsible for maximizing resiliency though high availability clustering services
Requirements
- PC or Laptop with internet Connection
- Red Hat Certified Engineer (RHCE) certification or equivalent experience.
- CentOS 7, RHEL7 ISO Image
- Vmware workstation
Last Updated 12/2019
Download Links
Direct Download
Linux High Availability Clustering.zip (2.6 GB) | Mirror
Torrent Download
Source: https://www.udemy.com/course/linux-high-availability-cluster/
