Proxmox has it's issues tho. Im sure they all do. I used to run a Windows cluster, it was great but a lot to manage. Proxmox has horrible network stability issues and STONITH really be killer with corosync. It's HA storage is a little lacking tho. You either get hyperconverged (which i guess is getting popular) or standalone ceph which is not cost effective.

We haven't had too many issues in the day job yet, but we're also not clustering our proximox instances....yet. Stand alone, they seemed to work just fine. But we do have separate cores. It's going to get interesting when we start clustering them, I'm sure.

I guess we'll see how many network engineers it takes to keep them stable. 🤣