Backup tool for standalone ZFS datasets to Proxmox Backup Server

Thanks, the only concern was that i have over 50TB of zfs pool data on my pve. on my backup server i don't know if I have enough drives to get a zfs pool that size up, which is why i originally went with unraid (ability to use diff drive sizes). I'll see if I can get a smaller zfs pool going because this tool looks exactly what i wanted
Consider different approaches like splitting your datasets (and pools?) into value groupings. Back up high value (difficult to replace) data differently than, say 'commercial media'. The media list could be high value, whereas the media files could be re-download with inconvenience or pain. High value is stored redundantly and backed up to fail-resistant datasets. Low value can be stored redundantly if your resources allow it.