thanks for this explanation!HA in proxmox means automatic fail-over to another node. For non-HA cluster you could get by with only two nodes by added two_node: 1 to corosync.conf
Am I right in assuming that this is no problem for my scenario?but the problem is that nodes does not get fenced which means that both nodes can operate in a quorate state independently of each other. Therefore a third node acting as witness is preferred.
Or in other words: When I don't use HA, is there any need for fencing?
Even in a split brain scenario it's good for me when both nodes keep on running.
Many greets
Stephan