Outline for this course

Creating high availability clusters

Create a basic high availability cluster.

Managing cluster nodes and quorum

Manage node membership in the cluster and describe how it impacts cluster operation.

Isolating malfunctioning cluster nodes

Isolate unresponsive cluster nodes to protect data and recover services and resources after a failure.

Creating and configuring resources

Create basic resources and resource groups to provide highly available services.

Troubleshooting high availability clusters

Identify, diagnose, and fix cluster issues.

Automating cluster and resource deployment

Deploy a new high availability cluster and cluster resources using Ansible automation.

Managing two-node clusters

Operate two-node clusters while identifying and avoiding issues specific to a two-node cluster configuration.

Accessing iSCSI storage

Configure iSCSI initiators on your servers to access block-based storage devices provided by network storage arrays or Ceph storage clusters.

Accessing storage devices resiliently

Configure resilient access to storage devices that have multiple access paths.

Configuring LVM in clusters

Select, configure, and manage the correct LVM configuration for use in your cluster.

Providing storage with the GFS2 cluster file system

Use the GFS2 cluster file system to simultaneously pProvide tightly coupled shared storage that can be accessed by multiple nodes.

Eliminating single points of failure

Identify and eliminate single points of failure in your cluster to decrease risk and increase average service availability.