1 quorum for 2 nodes ?

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BonesWyverns

New Member
May 14, 2024
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Hi everyone, I'm new to Proxmox, and to activate HA, I set the quorum to 1 for my two-node setup in case one of them suddenly fails. Is this configuration problematic, or can I leave it as it is?

Thank you in advance!
 
BonesWyverns said:
Hi everyone, I'm new to Proxmox, and to activate HA, I set the quorum to 1 for my two-node setup in case one of them suddenly fails. Is this configuration problematic, or can I leave it as it is?

Thank you in advance!
Click to expand...
Hi,
this is not how you should run a cluster, especially if you have HA enabled guests. The recommended way to use for a 2-node cluster is to setup an external voter, see [0] and in general [1]. Setting the expected votes to 1 should only ever be done for disaster recovery and maintenance reasons.

[0] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_corosync_external_vote_support
[1] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_quorum
 
Hi Chris, thanks for your answer,
So if I understand well I need to have either 3 nodes or an external vote to make the HA work without risk of split-brain.
 
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