Cluster regularly losing qourum

znt

New Member
Jun 4, 2022
15
1
3
I have an 12 node homelab that is regularly losing quorum. I think it might be due to a combination of high bandwidth activities (e.g. backups to a separate PBS server) and corosync being latency sensitive.

The 12 nodes are almost all 1L PCs (e.g. Dell and Lenovo tiny/micro form factors). I think some of these can likely support internal NICs with PCIe riser cards, but that would be a slightly pricey addition to each node and I worry about the thermals. I've used USB NICs in the past for a few of the nodes and wonder if that would be a decent path for corosync. Has anyone ever used USB NICs specifically for the corosync traffic?

I know I have a janky setup. It's just a homelab I use for testing random stuff.