Monday, August 10GNOME IT SOLUTIONS LLC

Proxmox Cluster Setup: Multi-Node Configuration Guide

Set up a multi-node Proxmox cluster for centralized management, live migration, and high availability.

Requirements

  • 2+ Proxmox nodes with static IPs
  • Ports 8006, 5404-5405 open between nodes
  • Unique hostnames per node

Step 1: Create a New Cluster

Datacenter → Cluster → Create. Enter cluster name and link IP.

Proxmox datacenter create cluster dialog
Create cluster on first node

Step 2: Join Cluster — Enter Information

On additional nodes: Cluster → Join. Enter peer IP and credentials.

Proxmox join cluster information peer IP
Join cluster — peer information

Step 3: Complete Cluster Join

Confirm fingerprint and join the node to the existing cluster.

Proxmox join cluster confirmation dialog
Join cluster confirmation

CLI Alternative

pvecm create pve-cluster
pvecm add 192.168.1.51
pvecm status

Best Practices

  • Use 3+ nodes for reliable quorum
  • Use shared storage for HA migration

Image credits: Screenshots are from the official
Proxmox VE documentation
(Proxmox GmbH), used for educational purposes.