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Anyone running ZFS? (lemmy.fwgx.uk)

submitted 2 years ago* (last edited 2 years ago) by blackstrat@lemmy.fwgx.uk to c/selfhosted@lemmy.world

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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?

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[–] ikidd@lemmy.world 2 points 2 years ago

Most NAS VMs want you to pass them the raw device so they can manage ZFS themselves. For every other VM, I have the VM running on ZFS storage that Proxmox uses and manages, and it will manage the datasets for backup, snapshots, etc.

It is definitely the way to go. The ability to snapshot a VM or CT before updates alone is worth it.