When setting up RAID1 instead of RAID5 means an extra few thousand dollars of cost, RAID5 is fine thank you very much. Also SSDs in the size many people need are not cheap, and not even a thing at a consumer level.
5x10TB WD Reds here. SSD isn’t an option, neither is RAID1. My ISP is going to hate me for the next few months after I set up backblaze haha
Not a 10TB one yet, thankfully, but did a 4TB in my old NAS recently after it started giving warnings. It was a few days iirc. Not ideal but better than the thousands of dollars it would cost to go to RAID1. I’d love RAID1, but until we get 50TB consumer drives for < $1k it’s not happening.