I set up Jellyfin on my main machine as a test. I enjoy the experience and want to migrate to a NAS, for better reachability in my network. I am a beginner when it comes to networks.

I currently use a single 20TB HDD (current usage 80%) and another 4TB HDD is around somewhere. I was wondering what my options and recommended solutions are. Should I get 1, 2, or more 20TB drives? I want some redundancy, but don't want to invest into too many drives.

Looking forward to any tips or resources to read up on. Thanks.

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[–] [email protected] 8 points 4 months ago (1 children)

At least get one more and set up a raid1 so each drive contains a copy of the data.

The downside is this limits your expandability as converting between raid levels is not easy and you don't get any additional space.

If you get 2 more drives you could go for a zfs1 or raid5 to get the extra space and a drive in case of a failure.

[–] [email protected] 7 points 4 months ago* (last edited 4 months ago)

On a synology NAS you can use SHR-1 raid (which is basically raid 5) with just two disks. In pratice that acts like raid 1, but you can just add more drives and it will act like raid 5.

Not sure if other NAS have similar custom raids.