Course SLE321v12

Deploying and Administering SUSE Linux Enterprise High Availability 12

This three day course teaches students to deploy and administer the SUSE Linux Enterprise High Availability 12 product. The course introduces the product features and implementation planning for both on premise and the public cloud. A SLE12 HA cluster is deployed and then applications and clustered storage are configured, tested and administered.

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Course Information

Delivery Method: Classroom, eLearning
Course Duration: 3 days
Course Level: Advanced

Key Objectives

During this course you will learn:

  • Plan and prepare to implement a SLE HA cluster
  • Install SLE HA and create a Corosync/Pacemaker cluster
  • Administer a cluster using Web and CLI tools
  • Configure node fencing using the BMCs and SBD
  • Cluster basic resources, such as IP addresses and services
  • Cluster storage in a cluster safe way
  • Configure the cluster behaviour using constraints
  • Perform basic cluster troubleshooting

Audience Summary

This course is designed for existing Linux administrators who want to configure highly available services using the SUSE Linux Enterprise HA Extension.

Course Outline

  • Section 1: Introduction
    • Agenda
    • Course Overview
    • Lab Environment
  • Section 2: Introduction to SUSE Linux Enterprise HA
    • Overview of SLE12 HA
    • The Cluster Story
    • Cluster Terminology
    • SLE12 HA Architecture
    • SLE HA in the Public Cloud
    • Overview of Public Cloud
    • Supported Public Cloud Environments
  • Section 3: Cluster Implementation Requirements
    • Overview of SLE12 HA Implementation Process
    • Collecting the Required Parameters
    • Determine Expectations
    • Planning Storage
    • Differences between 2 node and 2+N node clusters
    • Differences between SLEHA12 and SLEHA15
    • Designing Test Cases
    • Testing and Documentation
  • Section 4: Cluster Node Preparation
    • Local Filesystems
    • Preparing the Infrastructure
    • Cluster Networking
    • Bonding Configuration
    • Time Synchronization
    • Name Resolution
    • Name Resolution using etc hosts
    • Name Resolution using DNS
    • User Management Best Practices
    • Software Management fo rthe HA Environment
    • Updating Cluster Nodes
  • Section 5: Deploy a Cluster
    • Preparation Checklist
    • Cluster setup step by step
    • Secure Cluster Communications
  • Section 6: Administer the HA Cluster
    • Overview of the Cluster Administration Tools
    • Introduction to Hawk
    • Command Line Tools
    • Configure and Synchronize files with csync2
  • Section 7: Split Brain Avoidance
    • Understand Split Brain
    • Understand Fencing 
    • Understand STONITH
    • Fencing using BMCs
    • Fencing using SBD
    • Split brain Avoidance in 2 node vs 2+N node clusters
    • Fencing in the Public Cloud
  • Section 8: Cluster Resources
    • Introduction to Cluster Resources
    • Resource Types
    • Resource Agents
  • Section 9: Controlling Cluster Behavior using Constraints
    • Introduction to Constraints
    • Location Constraints
    • Order Constraints
    • Colocation Constraints
  • Section 10: Cluster Managed Storage
    • Overview of Storage for a HA Cluster
    • Cluster Managed Storage
    • Overview of cLVM
    • Overview of OCFS2
    • Overview of Cluster Managed MDRAID
    • Overview of DRBD
    • Cluster Managed NFS
  • Section 11: Access Control Lists
    • Using Access Control Lists
  • Section 12: Basic HA Troubleshooting
    • General Troubleshooting
    • CLI Troubleshooting Tools
    • Log Files
    • Updating the Epoch
    • SBD startup behaviour
    • Working with the CIB

Course Prerequisites

Students require a good knowledge of SLES12. Some familiarity with the basic concepts of clustering for HA would be useful but not required.

Course Schedule

Date Location Provider  
Dec 6, 2021 - Dec 8, 2021 Online - English Fast Lane Register Now
Dec 6, 2021 - Dec 8, 2021 Online B1 Systems GmbH Register Now
Jan 24, 2022 - Jan 26, 2022 Berlin or Online Fast Lane Register Now
Mar 9, 2022 - Mar 11, 2022 Online Fast Lane Register Now