Add server as non-voting member of cluster?

garbled

New Member
Feb 9, 2021
25
1
1
47
I'm wondering if I can add a server as a non-voting member of a cluster. I currently have a cluster of 5 machines, and want to build one more, that is more or less dedicated to running a specific application. However, I would like the ability to disk-migrate a VM over to the main cluster for upgrades/emergencies.

Is this even possible?
 

shrdlicka

Active Member
Staff member
May 2, 2022
395
44
28
Hi,
yes, you can set the number of for one node to zero (see example pve-cl5 below). But as far as I know, you can't set the expected votes lower than the number of nodes in the cluster currently active.

Code:
...
  node {
    name: pve-cl4
    nodeid: 1
    quorum_votes: 1
    ring0_addr: 192.168.18.14
  }
  node {
    name: pve-cl5
    nodeid: 4
    quorum_votes: 0
    ring0_addr: 192.168.18.15
  }
...
 

garbled

New Member
Feb 9, 2021
25
1
1
47
Thank you. Hrmm. that might not solve my actual problem, which is that I don't want to mess up my existing quorum.
 

czechsys

Well-Known Member
Nov 18, 2015
328
28
48
Only disk migration? Use shared/network storage or something as zfs sync.
 

garbled

New Member
Feb 9, 2021
25
1
1
47
The idea is that I want to build a proxmox server to run my pfsense. I want it to normally have as few interdependencies as possible, so it should be able to come up on it's own, if the whole network is down. However, I want to be able to move the vm off for a few minutes for patching of the underlying proxmox server when needed, and not lose the internet.

So my idea was to hook it into my large 5-node cluster, and then do a disk migration when needed, and then migrate back. But if the proxmox host running pfsense is a voting member, now I have a 6-node, and sadness.
 

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