Proxmox Storage Replication: Near-HA Without Ceph or Shared Storage
The clustering article on this site already made the point that shared or replicated storage is the real gate on HA failover, not quorum. What it didn’t do is explain the replication half of that sentence, because it’s a separate feature with its own setup, its own limits, and its own failure modes. If you’re running a two or three node homelab cluster without Ceph and without a NAS acting as shared storage over NFS or iSCSI, Proxmox’s built-in storage replication is very likely the tool that gets you automatic failover anyway, and it’s worth understanding on its own rather than as a footnote to HA. ...