One of the underrated features of Proxmox is the ability to leave notes on the individual resources like the Datacenter, individual nodes, and every VM or Container. However, these notes are tucked away in individual configuration files within the Proxmox Cluster File System (/etc/pve).

If you’re managing a cluster with nodes like quell, edgar, and tanaka, having a single consolidated Markdown file of all your documentation is incredibly helpful for disaster recovery or general reference.