We’re nearing the end of 2021 and it’s time to refresh the homelab again. I recently moved two of the three custom built Supermicro servers previously in the home network cabinet over to the Colo Cluster, creating a need to replace the empty rack Us with something that could handle home services. Notice I used the word need there, although it’s really just a euphemism for want as I have plenty of servers that could handle this in the Data Center.
I recently switched the majority of my self-hosted services over to Proxmox running on a custom built 1U supermicro server. It’s been working so well I decided to build a second one, and setup a two node HA cluster to take advantage of live migration among other features. Proxmox uses corosync to track cluster status, but the trick is it requires a third node (qdevice) to provide quorum and act as a tie breaker.