Enterprise Linux High Availability Clustering Training

Course Description

This Enterprise Linux High Availability Clustering course is designed to provide students with advanced knowledge of the Enterprise Linux System. Is an in-depth course that focuses on two key areas, Linux high availability (HA) clustering and HA storage administration.

Red Hat Enterprise Linux 7

Objectives

Audience

Prerequisites

This Enterprise Linux High Availability Clustering course requires an advanced knowledge of Linux system administration. These skills are taught in the OSUN-225 “Enterprise Linux Systems Administration' and OSUN-120 “Linux Fundamentals'.

Topics

INTRODUCTION TO CLUSTERING AND STORAGE MANAGEMENT

Clustering Introduction
Cluster Building Blocks
Shared Storage
Hardware and Software Requirements
Network Considerations
Split Brain Prevention with Fencing
HA Components
Clustered Resources
Configuration Tools
Red Hat Cluster Stack Roadmap
Running Commands on Multiple Systems
Lab Tasks
- Running Commands on Multiple Hosts
- Prepare System for Clustering
- Static Network Configuration

COROSYNC AND QUORUM MANAGEMENT

Vocabulary
Network Topology
Ethernet Bonding
Communication Methods
IPv6 Considerations
Cluster Node Preparation
Enable and Configure pcsd
PCS & PCSD
Cluster Quorum
Advanced Quorum Techniques
Corosync
Corosync - Redundant Ring Protocol (RRP)
Corosync Security
Joining and Leaving the Cluster
Quorum Administration
Upgrading
Lab Tasks
- Install Cluster Components
- Setup a Two Node Cluster
- Setup a Three Node Cluster with PCS
- Totem RRP
- PCS GUI

STONITH AND FENCING

Fencing Introduction
Node Level Fencing
Node Fencing: External
Node Fencing: Internal
Node Fencing: Pseudo
Resource Level Fencing
Fencing Architecture
STONITH Subsystem
Fencing Agents
Fencing Agents listing
STONITH Resources
Working With stonith_admin
Manual Fencing
Best Practices
Lab Tasks
- Suicide Fencing with Storage Based Death
- Fencing with fence_scsi

PACEMAKER CLUSTER RESOURCE MANAGER

Cluster Architecture Revisited
Pacemaker Architecture
Pacemaker Cluster Information Base (CIB)
Resource Management Overview
Component Relationships
Resource Agents
Types of Resources
Resource Naming Conventions
Resource Specific Parameters/Options
Resource Meta Parameters/Options
Resource Agent Operations
Discover Resource Agents
Available Resource Agents
Resource Spotlight: IPAddr2
Add a Primative Resource
Resource Group Management
Resource Group Example
Resource Actions: Monitoring
Resource Administration
PCS vs. CRM_*
Lab Tasks
- Simple Management with PCS-GUI
- Using Resource Groups

ADVANCED RESOURCE CONFIGURATION

Resource Placement Basics
Resource Ordering
Location Constraints
Relocating Resources
Relocation on Failure
Resource Standard: Clones & Multi-State
Resource Operations
Troubleshooting
Cluster Maintenance
Lab Tasks
- Setup a Web Farm
- Using Constraints
- Cluster Monitoring

STORAGE TECHNOLOGIES

Remote Storage Overview
Remote Filesystem Protocols
Remote Block Device Protocols
Distributed Lock Manager
Block Devices and The Device Mapper
Managing Loopback Devices
DLM_CONTROLD & DLM_TOOL
Lab Tasks
- Manipulating Block Devices

ISCSI

ISCSI Architecture
ISCSI Target Implementations
ISCSI Target Node Preparation & targetcli
ISCSI Target Administration
ISCSI Target Defining Storage Objects
ISCSI Target LUN Administration
ISCSI Target Network Portal Configuration
ISCSI Target Security
ISCSI Target Examples
OPEN-ISCSI Initiator Implementation
ISCSI Initiator Discovery
ISCSI Initiator Node Administration
Mounting ISCSI Targets at Boot
ISCSI Multipathing Considerations
Lab Tasks
- iSCSI Initiator Configuration

KERNEL DEVICE MANAGEMENT

Managing Linux Device Files
Kernel Hardware Info €“ /SYS/
/SYS/ Structure
UDEV
I/O Elevators
Lab Tasks
- Creating Custom UDEV Rules

DEVICE MAPPER AND MULTIPATHING

SAN Multipathing
Multipath Configuration
Multipathing Best Practices
Lab Tasks
- Multipath Configuration

ADVANCED LVM & CLUSTER LVM

Logical Volume Management
Implementing LVM
Creating Logical Volumes
Activating LVM VGs
Exporting and Importing a VG
Examining LVM Components
Changing LVM Components
Advanced LVM Overview
Advanced LVM: Components & Object Tags
Advanced LVM: Automated Storage Tiering
Advanced LVM: Thin Provisioning
Advanced LVM: Striping & Mirroring
Advanced LVM: RAID Volumes
cLVM
Lab Tasks
- Creating and Managing LVM Volumes
- cLVM

GLOBAL FILE SYSTEM (GFS) 2

GFS2 Overview
GFS2 Capabilities
GFS2 Theory of Operation
GFS2 Configuration Prerequisites
Setting Up Cluster LVM
GFS2 Filesystem Creation & Mounting
GFS2 Filesystem Management
GFS2 Fencing Requirement
Lab Tasks
- GFS2

Badges

When you complete the Instructor-Led version of this course, you will be eligible to earn an IBM Training Badge that can be displayed on your website, business cards and social media channels to demonstrate your mastery of the skills you learned here.

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Enterprise Linux High Availability Clustering

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Objectives

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Prerequisites

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