One problem with RAID is that it doesn't help with software failures (from filesystem meltdown to ransomware). It's also not geographically distributed, so wil

One problem with RAID is that it doesn't help with software failures (from filesystem meltdown to ransomware). It's also not geographically distributed, so will go down in a house fire or robbery. Occasionally synced SSD kept at parents/friends' house solves both. In the old times it was (somewhat) costly and (somewhat) clunky, but with 1TB M.2 drives I'd consider both problems to be solved - and drives are only getting cheaper. Also: let's not pretend that cloud services are more reliable than something you own. They aren't. iTunes sometimes stops playback midway with some "URL not found" error; songs disappear due to copyright reasons, and let's not pretend iTunes - or any other service - will not get phased out eventually, taking your entire library with it.