Proxmox VE Cluster Design: Sizing, Quorum, and HA Fencing Decisions
A technical guide on designing Proxmox VE clusters, focusing on quorum requirements for even/odd node counts, IPMI fencing configuration, and NUMA resource allocation.
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A technical guide on designing Proxmox VE clusters, focusing on quorum requirements for even/odd node counts, IPMI fencing configuration, and NUMA resource allocation.
Guide to building a minimal three‑node Proxmox VE HA cluster: requirements, design, trust boundaries, checks, and failure modes.
The goal is to determine whether Proxmox VE’s HA manager can safely retry a failed VM resource without causing duplicate writes to shared storage when the original node loses contact. Current documentation shows that HA stops the failed resource before relocation and relies on the storage layer for consistency, but it does not provide an idempotent retry mec