S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology; often written as SMART) is a monitoring system included in computer hard disk drives (HDDs), solid-state drives (SSDs), and eMMC drives. Its primary function is to detect and report various indicators of drive reliability with the intent of anticipating imminent hardware failures.

https://gsmartcontrol.sourceforge.io/

https://forums.tomshardware.com/faq/hdd-s-m-a-r-t-test-with-crystaldiskinfo.1730641/