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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Related Courses

Code	Course Title	Duration	Level
RHL2	Red Hat Enterprise Linux 6 System Administration Part 2	4 Days	II	Details
RHLRST	Red Hat Enterprise Linux (RHEL) Rapid Skills Transfer for Experienced Support Staff	5 Days	II	Details
RHL1	Red Hat Enterprise Linux 6 System Administration Part 1	5 Days	II	Details
RHL4UA	Red Hat Enterprise Linux 6 for Experienced Unix Administrators	5 Days	II	Details

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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