Cluster 2 node high availability

[Proxmoxgoogle]

hi,

Because it is not possible to achieve an environment with high availability (HA) with two nodes? And if with three nodes

 

[1nerdyguy]

You need 3 nodes for HA Cluster. 2 will not work, due to the limitations of quorum.

 

[Proxmoxgoogle]

But because if I have two nodes, and one node fails, the other node is still running, would it continue to provide services, would high availability be met?

 

[mram]

The 3 nodes is required as when 1 falls off, 2 nodes still talk to each other and agree the cluster is up. When you only have 2 nodes and 1 falls off, neither know which one has become the master. The third node is like a tie breaker.

 

[Proxmoxgoogle]

OK understood