[p_l]

Proxmox VE configuration database has limitations compared to even simple HA vcenter setup, from my understanding the 30 MBs of configuration data it can hold is for all or nearly all configuration information, and has issues with synchronization timing out above a certain number of nodes.

They do now have "datacenter" single pane of glass interface, but a) it's very new b) no idea how the integration between different Proxmox VE clusters compares to integration between VMware clusters.