There’s two types of people: Those who have backups, and those who will lose data. Several years ago I had a raid card failure on a RAID 5 array (three disks) that lost about 5~ TB of data. Of this, about 1.5 was completely irreplaceable data, things as far back as high school projects. After this, I went into backup mode and always had redundant copies both locally and online (cloud based). At this point I’ve made a pretty solid system for handling this across multiple systems. Lemme walk you through it.