RHEL Clustering and Storage Management

Course:  RHLCSM
Duration:  3 Days
Level:  III
Course Summary

This hands-on course covers the high availability clustering and storage management technologies found in Red Hat Enterprise Linux 6+. Each student is assigned 3 dedicated machines and builds a cluster that conforms to industry best practices and offers a variety of services.

Students configure their cluster with multipath connections to iSCSI SAN storage and use cLVM and GFS2. Clusters are configured and managed using both GUI and command line tools. Cluster configuration includes advanced topics such as dual-ring Corosync, failover domains, and QDisk with heuristics.

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Topics Covered In This Course

INTRODUCTION TO CLUSTERING AND STORAGE MANAGEMENT

  • Clustering Introduction
  • Cluster Building Blocks
  • Shared Storage
  • Operating System Setup
  • Network Considerations
  • Split Brain Prevention with Fencing
  • HA Components
  • Clustered Resources
  • Configuration Tools
  • Red Hat Cluster Stack Roadmap

STORAGE TECHNOLOGIES

  • Remote Storage Overview
  • Remote Filesystem Protocols
  • Remote Block Device Protocols
  • Block Devices and the Device Mapper
  • Managing Loopback Devices

ISCSI

  • iSCSI Architecture
  • iSCSI Target Implementations
  • iSCSI Target Configuration (tgt)
  • iSCSI Target LUN Configuration (tgt)
  • iSCSI Target Auth Configuration (tgt)
  • iSCSI Persistent Configuration (tgt)
  • Open-iSCSI Initiator Implementation
  • iSCSI Initiator Discovery
  • iSCSI Initiator Node Administration
  • Mounting iSCSI Targets at Boot
  • iSCSI Multipathing Considerations

KERNEL DEVICE MANAGEMENT

  • Managing Linux Device Files
  • Kernel Hardware Info - /sys/
  • /sys/ Structure
  • udev
  • I/O Elevators

DEVICE MAPPER AND MULTIPATHING

  • SAN Multipathing
  • Multipath Configuration
  • Multipathing Best Practices

LOGICAL VOLUME MANAGEMENT

  • Logical Volume Management
  • Implementing LVM
  • Creating Logical Volumes
  • Manipulating VGs & LVs
  • Advanced LVM Concepts
  • system-config-lvm
  • cLVM

GLOBAL FILE SYSTEM (GFS) 2

  • GFS2 Overview
  • GFS2 Capabilities
  • GFS2 Theory of Operation
  • GFS2 Configuration Prerequisites
  • Setting Up Cluster LVM
  • GFS2 Filesystem Creation
  • GFS2 Filesystem Management
  • GFS2 Fencing Requirement

QUORUM AND THE CLUSTER MANAGER

  • Vocabulary
  • Network Topology
  • Host Configuration
  • Ethernet Bonding
  • Broadcast vs. Multicast vs. Unicast
  • IPv6 Considerations
  • Storage: cLVM
  • Ricci
  • cluster.conf Overview
  • CCS & Conga
  • Cluster Quorum
  • Corosync
  • Corosync - Dual Ring Configuration
  • CMAN
  • CMAN Utility: cman_tool
  • Quorum Administration
  • Quorum Disk
  • Upgrading
  • Distributed Lock Manager
  • dlm_tool
  • Conga

FENCING AND FAILOVER

  • Fencing Introduction
  • Node Based Fencing
  • Resource Based Fencing
  • Fencing Architecture
  • Fencing Agents
  • Fencing Agents listing
  • Fencing Daemon
  • Fencing XML Example
  • Fencing in cluster.conf
  • Fencing Daemon Tuning
  • Manual Fencing
  • Best Practices
  • Failover Domains
  • Failover Domain Characteristics
  • Failover Domain Administration

RESOURCE GROUP MANAGER

  • Resource Management Overview
  • Component Relationships
  • Resource Agents
  • Discover Resource Agents
  • Available Resource Agents
  • Resources
  • Resource Scope
  • Resource Actions: Timeout
  • Resource Actions: Status
  • Resource Administration
  • Resource Group Management
  • Service Group Attributes & Policies
  • Service Group Administration
  • Service Group States
  • Service Group Operations
  • Service Group Administration
  • Best Practices & Troubleshooting
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Every student attending a Verhoef Training class will receive a certificate good for $100 toward their next public class taken within a year.

You can also buy "Verhoef Vouchers" to get a discounted rate for a single student in any of our public or web-based classes. Contact your account manager or our sales office for details.

Schedule For This Course
There are currently no public sessions scheduled for this course. We can schedule a private class for your organization just a couple of weeks from now. Or we can let you know the next time we do schedule a public session.
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