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This Enterprise Linux High Availability Clustering training course is an in-depth course that focuses on two key areas, Linux high availability (HA) clustering and HA storage administration. Storage is integral to many HA clusters so as to make use of clustered storage technologies to enable active/active configurations.

Over the course of many in-depth lab exercises, each student will assemble a realistic three-node Linux cluster utilizing best practices. Each node has three network interfaces and each student's cluster has its own dedicated cluster VLAN.

The class contains a storage array for shared LUNs among the nodes. This enables students to perform very real world tasks in a real world setting, including multipathing, redundant ring communication, last man standing cluster, and shared storage scenarios. Course topics include: Cluster Architecture & Design, Pacemaker, Corosync, Fencing, Resource Management, Advanced Resource Management, Multipathing, Cluster LVM, Global File System v2.

The unprecedented real-world nature of this class requires a classroom configuration that would be daunting (but not impossible) to put together in a physical or virtual classroom. The Guru Labs online classroom solution, RLabs, instantly and easily deploys a classroom with the exact configuration needed to support this class. Students will be able to focus on the course topics rather than configuration settings outside the scope of the course.

 

Supported Distributions:

  • Red Hat Enterprise Linux 7

 

Enterprise Linux High Availability Clustering

Course Code

GTU17

Duration

4 Days

Course Fee

POA

Accreditation

N/A

Target Audience

  • This Enterprise Linux High Availability Clustering training course is suitable for IT professionals with a Linux background who wish to learn two key areas: Linux high availability (HA) clustering and HA storage administration.

Attendee Requirements

Expand all

Course Description

This Enterprise Linux High Availability Clustering training course is an in-depth course that focuses on two key areas, Linux high availability (HA) clustering and HA storage administration. Storage is integral to many HA clusters so as to make use of clustered storage technologies to enable active/active configurations.

Over the course of many in-depth lab exercises, each student will assemble a realistic three-node Linux cluster utilizing best practices. Each node has three network interfaces and each student's cluster has its own dedicated cluster VLAN.

The class contains a storage array for shared LUNs among the nodes. This enables students to perform very real world tasks in a real world setting, including multipathing, redundant ring communication, last man standing cluster, and shared storage scenarios. Course topics include: Cluster Architecture & Design, Pacemaker, Corosync, Fencing, Resource Management, Advanced Resource Management, Multipathing, Cluster LVM, Global File System v2.

The unprecedented real-world nature of this class requires a classroom configuration that would be daunting (but not impossible) to put together in a physical or virtual classroom. The Guru Labs online classroom solution, RLabs, instantly and easily deploys a classroom with the exact configuration needed to support this class. Students will be able to focus on the course topics rather than configuration settings outside the scope of the course.

 

Supported Distributions:

  • Red Hat Enterprise Linux 7

 

Course Outline

    1. Introduction to Clustering and Storage Management

  1.         Clustering Introduction
  2.         Cluster Building Blocks
  3.         Shared Storage
  4.         Hardware and Software Requirements
  5.         Network Considerations
  6.         Split Brain Prevention with Fencing
  7.         HA Components
  8.         Clustered Resources
  9.         Configuration Tools
  10.         Red Hat Cluster Stack Roadmap
  11.         Running Commands on Multiple Systems

    Lab Tasks

  1.         Running Commands on Multiple Hosts
  2.         Prepare System for Clustering
  3.         Static Network Configuration

    2. Corosync and Quorum Management

  1.         Vocabulary
  2.         Network Topology
  3.         Ethernet Bonding
  4.         Communication Methods
  5.         IPv6 Considerations
  6.         Cluster Node Preparation
  7.         Enable and Configure pcsd
  8.         PCS & PCSD
  9.         Cluster Quorum
  10.         Advanced Quorum Techniques
  11.         Corosync
  12.         Corosync - Redundant Ring Protocol (RRP)
  13.         Corosync Security
  14.         Joining and Leaving the Cluster
  15.         Quorum Administration
  16.         Upgrading

    Lab Tasks

  1.         Install Cluster Components
  2.         Setup a Two Node Cluster
  3.         Setup a Three Node Cluster with PCS
  4.         Totem RRP
  5.         PCS GUI

    3. STONITH and Fencing

  1.         Fencing Introduction
  2.         Node Level Fencing
  3.         Node Fencing: External
  4.         Node Fencing: Internal
  5.         Node Fencing: Pseudo
  6.         Resource Level Fencing
  7.         Fencing Architecture
  8.         STONITH Subsystem
  9.         Fencing Agents
  10.         Fencing Agents listing
  11.         STONITH Resources
  12.         Working With stonith_admin
  13.         Manual Fencing
  14.         Best Practices

    Lab Tasks

  1.         Suicide Fencing with Storage Based Death
  2.         Fencing with fence_scsi

    4. Pacemaker Cluster Resource Manager

  1.         Cluster Architecture Revisited
  2.         Pacemaker Architecture
  3.         Pacemaker Cluster Information Base (CIB)
  4.         Resource Management Overview
  5.         Component Relationships
  6.         Resource Agents
  7.         Types of Resources
  8.         Resource Naming Conventions
  9.         Resource Specific Parameters/Options
  10.         Resource Meta Parameters/Options
  11.         Resource Agent Operations
  12.         Discover Resource Agents
  13.         Available Resource Agents
  14.         Resource Spotlight: IPAddr2
  15.         Add a Primative Resource
  16.         Resource Group Management
  17.         Resource Group Example
  18.         Resource Actions: Monitoring
  19.         Resource Administration
  20.         PCS vs. CRM_*

    Lab Tasks

  1.         Simple Management with PCS-GUI
  2.         Using Resource Groups

    5. Advanced Resource Configuration

  1.         Resource Placement Basics
  2.         Resource Ordering
  3.         Location Constraints
  4.         Relocating Resources
  5.         Relocation on Failure
  6.         Resource Standard: Clones & Multi-State
  7.         Resource Operations
  8.         Troubleshooting
  9.         Cluster Maintenance

    Lab Tasks

  1.         Setup a Web Farm
  2.         Using Constraints
  3.         Cluster Monitoring

    6. Storage Technologies

  1.         Remote Storage Overview
  2.         Remote Filesystem Protocols
  3.         Remote Block Device Protocols
  4.         Distributed Lock Manager
  5.         dlm_controld & dlm_tool
  6.         Block Devices and the Device Mapper
  7.         Managing Loopback Devices

    Lab Tasks

  1.         Manipulating Block Devices

    7. iSCSI

  1.         iSCSI Architecture
  2.         iSCSI Target Implementations
  3.         iSCSI Target Node Preparation & targetcli
  4.         iSCSI Target Administration
  5.         iSCSI Target Defining Storage Objects
  6.         iSCSI Target LUN Administration
  7.         iSCSI Target Network Portal Configuration
  8.         iSCSI Target Security
  9.         iSCSI Target Examples
  10.         Open-iSCSI Initiator Implementation
  11.         iSCSI Initiator Discovery
  12.         iSCSI Initiator Node Administration
  13.         Mounting iSCSI Targets at Boot
  14.         iSCSI Multipathing Considerations

    Lab Tasks

  1.         iSCSI Initiator Configuration

    8. Kernel Device Management

  1.         Managing Linux Device Files
  2.         Kernel Hardware Info – /sys/
  3.         /sys/ Structure
  4.         udev
  5.         I/O Elevators

    Lab Tasks

  1.         Creating Custom UDEV Rules

    9. Device Mapper and Multipathing

  1.         SAN Multipathing
  2.         Multipath Configuration
  3.         Multipathing Best Practices

    Lab Tasks

  1.         Multipath Configuration

    10. Advanced LVM & Cluster LVM

  1.         Logical Volume Management
  2.         Implementing LVM
  3.         Creating Logical Volumes
  4.         Activating LVM VGs
  5.         Exporting and Importing a VG
  6.         Examining LVM Components
  7.         Changing LVM Components
  8.         Advanced LVM Overview
  9.         Advanced LVM: Components & Object Tags
  10.         Advanced LVM: Automated Storage Tiering
  11.         Advanced LVM: Thin Provisioning
  12.         Advanced LVM: Striping & Mirroring
  13.         Advanced LVM: RAID Volumes
  14.         cLVM

    Lab Tasks

  1.         Creating and Managing LVM Volumes
  2.         cLVM

    11. Global File System (GFS) 2

  1.         GFS2 Overview
  2.         GFS2 Capabilities
  3.         GFS2 Theory of Operation
  4.         GFS2 Configuration Prerequisites
  5.         Setting Up Cluster LVM
  6.         GFS2 Filesystem Creation & Mounting
  7.         GFS2 Filesystem Management
  8.         GFS2 Fencing Requirement

    Lab Tasks

  1.         GFS2
Learning Path
Ways to Attend
  • Attend a public course, if there is one available. Please check our schedule, or register your interest in joining a course in your area.
  • Private onsite Team training also available, please contact us to discuss. We can customise this course to suit your business requirements.

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