RHEL Clustering and Storage Management (GL645)

Module 1: 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

 

Module 2: 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 and Configure PCSD

– Setup a Two Node Cluster

– Setup a Three Node Cluster with PCS

– Totem RRP

– PCS GUI

 

Module 3: 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

• Resource Spotlight: IPAddr2

• STONITH Resources

• Working With stonith_admin

• Manual Fencing

• Best Practices

• Lab Tasks

– Suicide Fencing with Storage Based Death

– Fencing with fence_scsi

 

Module 4: 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

• 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

 

Module 5: 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

 

Module 6: Storage Technologies

• Remote Storage Overview

• Remote Filesystem Protocols

• Remote Block Device Protocols

• Distributed Lock Manager

• dlm_controld & dlm_tool

• Block Devices and the Device Mapper

• Managing Loopback Devices

• Lab Tasks

– Manipulating Block Devices

 

Module 7: 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

 

Module 8: Kernel Device Management

• Managing Linux Device Files

• Kernel Hardware Info – /sys/

• /sys/ Structure

• udev • I/O Elevators

• Lab Tasks

– Creating Custom UDEV Rules

 

Module 9: Device Mapper and Multipathing

• SAN Multipathing

• Multipath Configuration

• Multipathing Best Practices

• Lab Tasks

– Multipath Configuration

 

Module 10: 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

 

Module 11: 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  

Prerequisites

This course requires an advanced knowledge of Linux system administration. These skills are taught in the H7091S "Enterprise Linux Systems Administration" and U8583S "Linux Fundamentals"