[SOLVED] Cluster with only two nodes

[micfrip]

Hi,

I would like to setup a cluster with two nodes under Proxmox.

In some tutorials, I found that I need to change the

/etc/pve/cluster.conf

in order to add

two_node="1" expected_votes="1"

I do not see that file anymore in the newest version of Proxmox.
Could you please tell me how to proceed now?

Many thanks.

 

[LnxBil]

I do not see that file anymore in the newest version of Proxmox.
Could you please tell me how to proceed now?

The simple answer is: You need three nodes, otherwise HA will not work.

Longer answer: you can use a third computer, e.g. a raspberry pi as a voting device to get HA working for your two machines.
More information is here: https://pve.proxmox.com/wiki/Cluster_Manager#_corosync_external_vote_support

 

[spirit]

@micfrip

#pvecm expected 1


(but don't use HA with 2 nodes)

 

[micfrip]

Hi,

Thank you for your answers. I was not expecting HA but simply avoid to block server if one node falls.

FYI, I found some documentations on Corosync and it seems that we can settle this problem quite easily:
Just edit corosync.conf and add "two_node: 1" in the quorum part like this:

quorum {
provider: corosync_votequorum
two_node: 1
}

Again thank you for your answers.