The original post: /r/datahoarder by /u/Longjumping_Tax3639 on 2024-12-23 02:40:44.

I have two 20TB external HHDs from Seagate that I haven’t unboxed yet. I want to store newly downloaded movies and TV shows on one, with the other acting as a redundancy. I plan to use ZFS for organizing and preventing bit rot. They’ll be connected to Plex for streaming.

Since ZFS comes with a built-in mirror program, I’m not sure how to proceed. I’ve read a lot about mirroring and the different Raidz options, but I’m honestly on the fence about which one is more appropriate for my small at-home setup.

My interest is data integrity and protection over expediency and performance. I’ve read that mirroring drives this large may be dangerous, though that was a single comment on a Truenas forum.

What do you recommend for keeping my hoard best protected for long-term use, with 2 drives? Thank you in advance.