I think I'm moving in this direction. Did you consider FlexRaid and Unraid also? If so, what made you pick SnapRAID over them?Another option could be SnapRAID. It has very low system requirements. It supports up to 6 parity disks, and provides data scrubbing as well. A potential downside for your use case could be that it is not realtime RAID. So you would need to trigger the sync via cronjob or script.