qdevice - RackNotes

Proxmox Cluster Quorum Lost: 6 Causes and How to Fix It

June 1, 2026 by racknotes

Proxmox cluster quorum lost — node topology with offline node and pvecm status output

14 min readWhat happens when your Proxmox cluster loses quorum, why it happens, and how to recover safely — without risking split brain or VM image corruption.

Proxmox HA Cluster: When It’s Worth the Complexity (and When It Bites Back)

May 29, 2026May 28, 2026 by racknotes

Proxmox HA cluster decision framework — quorum, fencing, and when to use it

14 min readDecision-focused guide to Proxmox HA cluster: when high availability is worth the operational complexity, when it isn’t, and what breaks if you skip the requirements. Covers quorum, Corosync, fencing, common misconfigurations, and homelab vs production framing.