https://forum.proxmox.com/threads/migrating-to-a-new-server.144106/
https://www.proxmox.com/en/services/videos/proxmox-virtual-environment/proxmox-ve-import-wizard-for-vmware
https://pve.proxmox.com/wiki/Migrate_to_Proxmox_VE#Automatic_Import_of_Full_VM