Self-Monitoring, Analysis, and Reporting Technology.
S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a diagnostic system that is convenient in gauging the health of HDDs and SSDs. The technology is built-in and actively monitors a set of data related to the drive's reliability and durability. S.M.A.R.T. provides users with an accurate idea of when the drive may need to be replaced.