https://pve.proxmox.com/wiki/DRBD9
You need 3 identical Proxmox VE servers (V4.0 or higher) with the following extra hardware:
Ability to live migrate running machines without downtime in a few seconds WITHOUT the need of SAN (iSCSI, FC, NFS) as the data is already on both nodes.
LXC containers can use DRBD9 storage
https://pve.proxmox.com/wiki/DRBD 舊
You need 2 identical Proxmox VE servers with the following extra hardware:
