This has nothing to do with the cpu model but it's about the storage : you are using raw files, which do not support snapshots. Check https://pve.proxmox.com/wiki/Storage
really thank you.
If I clone the OS disk to qcow2 with the second disk remaining in the raw format and excluded from backup, I will able to use snapshot?
latest info,
in the server I don't have enough space in the partition to backup the big raw disk of 4999gb,
I'm a container running Duplicati software to backup dump files to wasabi storage, I can securely mount the folder where i store the raw disk and backup it live to the cloud?