Complete Red Hat Clustering

Identify hardware and software requirements for a six-server Red Hat clustering setup, including memory, hypervisor installation, cluster network, storage network, and heartbeat configurations.

Install and configure VMware Workstation on Windows, download the remote workstation setup, and complete the installation through next and finish steps, learning common prompts and shortcuts during setup.

Practice installing VMware Vspare on a nested VMware workstation by creating a custom virtual machine, downloading the image, configuring datastore and credentials, and completing installation with reboot.

Create and manage lan segments for a clustered environment in VMware Workstation by configuring storage and public networks to support per-cluster networking.

Learn to create virtual switches and virtual port groups on Esxi, configure uplinks for cluster networks, and set up storage networks for VM connectivity.

Set a static IP on an ESXi host, configure subnet mask and gateways, and ensure DNS settings while connecting virtual machines to the network for reliable infrastructure.

Create a new virtual machine and install Red Hat Enterprise Linux 8, configuring language, time, hostname, memory, CPU, storage, network, and license during setup.

Set up and verify node connections across cluster, storage, and public networks, configure static IPs, and test inter-node connectivity to support Red Hat clustering.

Configure dnf or yum and a repository server in RHEL 8 for high availability packages, including local repositories, metadata creation, and resilience repository setup.

Learn to enable the Red Hat high availability repository on CentOS 8, install necessary packages with dnf, and deploy pacemaker and corosync for cluster-based resilience.

Learn how to download high availability repository packages in one go, configure the repository, and install pacemaker cluster components across all machines using repo sync.

Set up passwordless ssh login across cluster nodes by generating an ssh key pair, copying the public key to authorized_keys, and verifying access among three Red Hat Enterprise Linux machines.

Get started with Red Hat clustering by installing pacemaker, corosync, and pcs, configuring a named cluster, and understanding how corosync, pacemaker, and policy coordinate resource management.

Learn to install and configure a basic Red Hat cluster across three nodes, including pacemaker and related packages, starting and enabling services, and verifying cluster status for high availability.

Manage cluster nodes by starting and stopping cluster services during maintenance, add or remove nodes to test high availability, and use standby to migrate resources and re-enable nodes.

Learn to add and remove nodes in a Red Hat cluster, authenticate new nodes, configure IPs and port names, start services, and verify cluster status.

Explore how Red Hat clustering maintains operation through quorum, calculating the minimum online votes, monitoring quorum status with a tool, and ensuring shared storage remains accessible across active node groups.

Demonstrate managing a Red Hat cluster by inspecting current status, enforcing quorum, and stopping nodes to see how the last man standing keeps the cluster operational.

Learn to stop and start cluster services, check status, and apply quorum and tiebreaker concepts to maintain a healthy Red Hat cluster.

Practice configuring Red Hat clustering with last man standing and auto tie-breaker, by starting and stopping cluster services, verifying quorum, and ensuring the cluster stays online across nodes.

Practice Red Hat clustering by starting and stopping cluster services, waiting for all properties to align, and checking the current status to confirm the operation on all nodes.

Explore the results and conclusions of Red Hat clustering to understand its outcomes and implications.

Examine issues in a two-node Red Hat cluster, including quorum loss with 50 plus one, split brain from connectivity failures, and the need to manage wait-for-all properties.

Configure cluster properties, stop cluster services, modify the cluster configuration file, start services, and verify quorum and operational status in a two-node Red Hat cluster.

Configure location, order, and colocation constraints to control resource behavior in a Red Hat cluster, and learn how groups and properties enable or disable resources in practice.

Practice session on constrained groups and property sets in Red Hat clustering, teaching resource creation, virtual IP setup, and configuring location, order, and colocation constants.

Explore fencing theory in Red Hat clustering, including quorum calculations and mechanisms to isolate failed nodes by powering them off, ensuring resource accessibility and cluster integrity.

Configure fencing devices across all cluster nodes, verify status and virtual machines, and test network settings to ensure reliable failover in a Red Hat clustering environment.

Learn how to configure an iSCSI target and initiator to share block storage over an IP network. Understand target and initiator roles, discovery, login, ACLs, and portals.

Install and configure iSCSI target and initiator on Red Hat cluster nodes, enable the services, set up block storage on the shared network, and perform target discovery.

Explore how multi-path input-output paths link server nodes and storage into a single device, and configure and verify multipath to ensure redundancy and higher throughput.

Explore practical multipath configurations in Red Hat clustering, linking two networks—the cluster and storage networks—to ensure resilience, manage initiator and node setups, and monitor multipath status for high availability.

Learn how to design cluster resources for high availability using Pacemaker and Corosync. Group resources into resource groups, deploy resource agents, and automate movement between nodes to keep services available.

Create and manage cluster resources using resource agents like pacemaker and heartbeat, monitor status, and update, troubleshoot, move, or delete resources.

Discover how to set up an NFS-backed cluster in Red Hat, linking multiple nodes, installing required packages, configuring services to start on boot, and mounting shared storage across clients.

Learn how to install and configure nfs in a Red Hat cluster, enable and start services across nodes, set up shared storage, create partitions, mount points, and verify cluster resources.

Develop an active-passive Red Hat clustering setup by configuring LVM across volumes and partitions, using shared storage with ext3/ext4/xfs file systems, and mounting resources on cluster nodes.

Learn to create an LVM with an attached systemid, configure a logical volume, and activate it within a Red Hat clustering setup.

Learn to install and configure active-passive nfs in a Red Hat cluster, including LVM resources, starting and enabling services across nodes, and testing resource failover with constraints and colocation.

Install packages on all cluster nodes and configure a web server resource with status checks for the active-passive apache setup, using an LVM-based pilot system.

Learn to configure and manage Apache web server resources in a Red Hat clustering environment, including package installation, resource creation, grouping, constraints, and monitoring.