Smart is abbreviation for Self-Monitoring Analysis and Reporting Technology. It is a technology that enables the host to predict the future failure of hard disks. Armed with a failure prediction, the system administrator can back up data, replace a bad device prior to data loss, or avoid undesired downtime. S.M.A.R.T. is a key component of improving data integrity and data availability of the PC.

IDE Diag can be used to display some information and results of S.M.A.R.T. tests.