Proxmox VE and Corosync: Quorum Loss and pmxcfs Write Access
Proxmox VE utilizes the Corosync cluster engine to manage membership and maintain quorum. A critical dependency exists between the cluster's quorum state and the Proxmox Cluster File System (pmxcfs), which handles configuration files in /etc/pve . In a multi-node environment, the system is designed to prevent split-brain scenarios by restricting write access