I have a similar approach but I don’t use ZFS. It’s a bit superfluous especially if you’re using your storage periodically (turn on and off). I use redundant NV

I have a similar approach but I don’t use ZFS. It’s a bit superfluous especially if you’re using your storage periodically (turn on and off). I use redundant NVMEs in two stages and periodically save important data into multiple HDDs (cold storage). Worth noting, it’s important to prune your data. I also do not backup photos and videos locally. It’s a major headache and they just take up a crap ton of space when Amazon Prime will give you photo storage for free. Anecdotally, only drives that failed on me were enterprise-grade HDDs. And they all failed within a year and in an always-on system. I also think RAIDs are over-utilized and frankly a big money pit outside of enterprise-level environments.