Quorum clarification

twey

Renowned Member
Oct 15, 2016
16
1
68
40
Hi

I have read https://pve.proxmox.com/wiki/Cluster_Manager which contains the following:
  • If the QNet daemon itself fails, no other node may fail or the cluster immediately loses quorum. For example, in a cluster with 15 nodes, 7 could fail before the cluster becomes inquorate. But, if a QDevice is configured here and it itself fails, no single node of the 15 may fail. The QDevice acts almost as a single point of failure in this case.

is this still the case? I have recently added a 3rd node to a 2 Node Cluster and the pvecm status shows the following:

Code:
Cluster information
-------------------
Name:             PXC-S4
Config Version:   4
Transport:        knet
Secure auth:      on

Quorum information
------------------
Date:             Sat Dec 28 12:52:25 2024
Quorum provider:  corosync_votequorum
Nodes:            3
Node ID:          0x00000003
Ring ID:          1.2a
Quorate:          Yes

Votequorum information
----------------------
Expected votes:   4
Highest expected: 4
Total votes:      3
Quorum:           3 
Flags:            Quorate

Membership information
----------------------
    Nodeid      Votes    Qdevice Name
0x00000001          1    A,V,NMW 10.33.100.41
0x00000002          1    A,V,NMW 10.33.120.41
0x00000003          1         NR 10.33.120.42 (local)
0x00000000          0            Qdevice (votes 1)

As my Interpretetation the Quorum Server loses his vote if the the node count is odd.

Am I correct?
 

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