I have 8 4TB drives right now, 6 data, 2 raid backups using SnapRaid. I used a gui over it to create snapshots (elucidate i think). Never had to restore data thankfully. Did not want to mess with command lines. I also use DrivePool and configured some folders to duplicate. This setup is about 6 years old, maybe more.
I am about to move my data to 4 or 5 16TB WD Golds…2/2 data/raid or 3/2. Any suggestions for software raid to replace SnapRaid?
NAS is wide open full of options. You can get one off the shelf like a Synology or just build a PC and use that as your NAS with a NAS OS like OpenMediaVault, UnRAID, TrueNAS…
SnapRAID is still plenty active. Just check their GitHub. Last update was 12.2 August 2022.