Backblaze’s analysis of nearly 40,000 drives showed five SMART metrics that correlate strongly with impending disk drive failure:
- SMART 5 – Reallocated_Sector_Count.
- SMART 187 – Reported_Uncorrectable_Errors.
- SMART 188 – Command_Timeout.
- SMART 197 – Current_Pending_Sector_Count.
- SMART 198 – Offline_Uncorrectable
The 5 SMART stats that actually predict hard drive failure | Computerworld