The thing about SSD failures is that in normal use, you can't wear one out. But in perfectly normal use, some of the units just die after N years (for very smal

The thing about SSD failures is that in normal use, you can't wear one out. But in perfectly normal use, some of the units just die after N years (for very small number N in some cases). They don't warn. They don't show increased fault or wear counters. They just die and completely disappear from the bus and stop accepting any commands. There is no recovery and, I repeat, no warning. That's why you have backups and drives are easy to replace, though reinstall/restore can be tedious. Unless it's a soldered in one.