I guess having a backup and error correcting file systems like ZFS or BTRFS will help you more long term. Sure, watch fir Smart values, but imho don't go over board with tests. I do a extended smart test, rebuild/extend my RAID, check a quick smart test again and that's it. Drives can die at any time, even if they were fine after a long test cycle. The 3-2-1 rule should save you from data loss.