One Good Reason to use SoftRAID — Predicting Drive Failure
Even if you don’t use RAID-0 striping or RAID-1 mirroring, here’s one good reason to use SoftRAID 4. While the drive here was a backup drive, I tossed it— I don’t need such headaches.

SoftRAID 4 checks bad block statistics on the drive and reports if there are excessive errors

A useful prediction by SoftRAID 4 for a hard drive