At the moment I have my NAS setup as a Proxmox VM with a hardware RAID card handling 6 2TB disks. My VMs are running on NVMEs with the NAS VM handling the data storage with the RAIDed volume passed through to the VM direct in Proxmox. I am running it as a large ext4 partition. Mostly photos, personal docs and a few films. Only I really use it. My desktop and laptop mount it over NFS. I have restic backups running weekly to two external HDDs. It all works pretty well and has for years.
I am now getting ZFS curious. I know I’ll need to IT flash the HBA, or get another. I’m guessing it’s best to create the zpool in Proxmox and pass that through to the NAS VM? Or would it be better to pass the individual disks through to the VM and manage the zpool from there?
Complete nonsense. Enterprise drives are better for reliability if you plan on a ton of writes, but ZFS absolutely does not require them in any way.
Next you’ll say it needs ECC RAM
Who said it does? Also regarding Proxmox:
https://forum.proxmox.com/threads/2-node-cluster-with-the-the-least-amount-of-clusterization-how.140434/#post-628788
https://forum.proxmox.com/threads/consumer-grade-ssds.141190/post-632197