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2 nodes cluster

Possible to run QDevice daemon on external - 3rd device: Corosync External Vote Support

  • On 1st node create cluster.
  • On 2nd node join to cluster (node must be empty - no VMs / CT)
  • Then add QDevice to cluster.

QDevice on PBS

on PBS: 

apt install corosync-qnetd

on all nodes: 

apt install corosync-qdevice

on one cluster node (separate cluster only network 192.168.188.0/24): 

#pvecm qdevice setup <QDEVICE-IP>
pvecm qdevice setup 192.168.188.3 --network 192.168.188.1/24
pvecm status
Cluster information
-------------------
Name:             example.com
Config Version:   3
Transport:        knet
Secure auth:      on
 
Quorum information
------------------
Date:             Wed Mar  5 22:04:06 2025
Quorum provider:  corosync_votequorum
Nodes:            2
Node ID:          0x00000001
Ring ID:          1.9
Quorate:          Yes
 
Votequorum information
----------------------
Expected votes:   3
Highest expected: 3
Total votes:      3
Quorum:           2  
Flags:            Quorate Qdevice 
 
Membership information
----------------------
    Nodeid      Votes    Qdevice Name
0x00000001          1    A,V,NMW 192.168.188.1 (local)
0x00000002          1    A,V,NMW 192.168.188.2
0x00000000          1            Qdevice