High Availability Configuration Lab
Author and validate Proxmox HA group, failover, fencing, and policy configurations using the real config file format.
Lab Overview
In this lab you will author the four core configuration artifacts that drive Proxmox VE High Availability: HA group definitions with node priorities and failback settings, failover scenario plans that identify protected VMs and recovery targets, IPMI fencing policies that prevent split-brain, and HA policy tuning parameters that control migration limits and maintenance windows. Each task uses the actual Proxmox HA config file syntax so you build familiarity with the format before applying it on a live cluster.
What You'll Learn
Understand how Proxmox HA groups control node priority and failback behavior for different workload types
Describe the components of a failover scenario including affected nodes, protected VMs, and recovery targets
Explain how IPMI fencing prevents split-brain by isolating suspected-failed nodes before VM recovery begins
Identify the key HA policy parameters (migration limit, shutdown policy, maintenance freeze) and the trade-offs each controls
Prerequisites
Familiarity with basic Linux command-line operations
Conceptual understanding of what a Proxmox VE cluster is
Completion of an introductory Proxmox VE course or equivalent reading
Technologies Covered
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