Red Hat® High Availability Clustering

An experienced Linux system administrator responsible for managing shared storage across 1 or more Linux systems, an experienced Linux system administrator responsible for maintaining a high-availability service using cluster technology, an RHCE interested in earning a Red Hat Certificate of Expertise, a Red Hat Certified Datacenter Specialist (RHCDS) or a Red Hat Certified Architect (RHCA) credential.

As a result of attending this course, students should be able to create, manage, and troubleshoot highly available network services and tightly-coupled cluster storage for business-critical applications.

Students should be able to demonstrate the following skills:

• Improve application uptime by using high availability clustering
• Manage storage in an high availability environment using iSCSI initiators, HA-LVM or CLVM as appropriate, and GFS2 cluster file systems
• Implement strategies to identify single points of failure in high availability clusters and eliminate them

Following completion of this course you will have the knowledge and experience to:

• Review of Red Hat enterprise clustering and storage management technologies
• Linux dynamic device management
• iSCSI
• Advanced software RAID
• Device mapper and multipathing

• RHCE certification or equivalent experience

Storage technologies

• Storage Requirements
• NAS vs. SAN

iSCSI

• iSCSI as a shared storage device
• Configuring an iSCSI initiator
• Configuring an iSCSI target
• Authentication

Kernel Device Management

• udev features
• udev rule configuration
• I/O scheduler

Device mapper and multipathing

• Mapping targets
• Multipath device configuration

Red Hat Cluster Suite overview

• Design and elements of clustering
• Cluster configuration tools

Logical Volume Management

• LVM review
• Setting up clusered logical volumes

Global File System (GFS) 2

• Implementation and configuration
• Lock management
• Planning for and growing online GFS
• Monitoring tools
• Journal configuration and management

Quorum and the cluster manager

• Intracluster communication
• Cluster tools

Fencing and failover

• Fencing components
• Failover domains

Quorum disk

• Heuristic configuration

Resource Group Manager (rgmanager)

• Resource groups and recovery
• Hierarchical resource ordering
• High-availability services