Why You Need 3 Nodes // My Proxmox Ceph Cluster Project!

In this video, I upgrade my old 2-node Proxmox cluster into a proper 3-node Proxmox cluster with Ceph storage. I’ll show why the old QDevice setup was useful for learning, where it started to fall apart for real high availability, and how Ceph changes the way VM storage works in a Proxmox cluster. We’ll go through the Ceph installation, monitors, managers, OSDs, RBD storage, pool settings, placement groups, and finally a live migration test to see if the VM can move between nodes while staying online.


References:
Write-Up: https://christianlempa.de/videos/prox...
Proxmox 2-Node Cluster Video:    • More POWER for my HomeLab! // Proxmox  

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Timestamps:

00:00 - Introduction
00:52 - Why Ceph is better on Proxmox
03:46 - What was the problem with 2 Nodes?
05:43 - What about ZFS replication?
06:28 - How Ceph Works
07:36 - Install Ceph on Proxmox
10:35 - Minimum Requirements for Ceph
15:02 - Setup Monitors and Managers
16:32 - Create OSDs and RBDs
20:52 - Live migration test
22:29 - Is this worth it?
24:21 - My Next Project Ideas...

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