Deploying and Administering SUSE Linux Enterprise High Availability 15

This three day course teaches students to deploy and administer the SUSE Linux Enterprise High Availability 15 product. The course introduces the product features and implementation planning for both on premise and the public cloud. A SLE15 HA cluster is deployed and then applications and clustered storage are configured, tested and administered.

Accredited course for Continuing Education of Pedagogical Staff

Course length: 3 days (8:30 - 16:00)

Dates

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• Students will be able to

  • 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

• Course requirements

  Students require a good knowledge of SLES15. Some familiarity with the basic concepts of clustering for HA would be useful but not required.

• This course is intended for

  This course is designed for existing Linux administrators who want to configure highly available services using SUSE Linux Enterprise HA. This course provides a foundation for deploying SAP on SLE 15 HA.

• Literature

  All participants will get original SUSE materials.

• Hardware

  Classrooms are equipped with high-performance computers with Internet access and the possibility of wireless connection.

• Syllabus

  Introduction

  • Agenda
  • Course Overview
  • Lab Environment

  Introduction to SUSE Linux Enterprise HA

  • Overview of SLE15 HA
  • The Cluster Story
  • Cluster Terminology
  • SLE15 HA Architecture
  • SLE HA in the Public Cloud
  • Overview of Public Cloud
  • Supported Public Cloud Environments

  Cluster Implementation Requirements

  • Overview of SLE15 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

  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

  Deploy a Cluster

  • Preparation Checklist
  • Cluster setup step by step
  • Secure Cluster Communications

  Administer the HA Cluster

  • Overview of the Cluster Administration Tools
  • Introduction to Hawk
  • Command Line Tools
  • Configure and Synchronize files with csync2

  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

  Cluster Resources

  • Introduction to Cluster Resources
  • Resource Types
  • Resource Agents

  Controlling Cluster Behavior using Constraints

  • Introduction to Constraints
  • Location Constraints
  • Order Constraints
  • Colocation Constraints

  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

  Access Control Lists

  • Using Access Control Lists

  Basic HA Troubleshooting

  • General Troubleshooting
  • CLI Troubleshooting Tools
  • Log Files
  • Updating the Epoch
  • SBD startup behaviour
  • Working with the CIB