SMART – Self-Monitoring, Analysis, and Reporting Technology which is used by disk drive or SSD controllers to monitor the drive’s status and health. SMART monitors drive attributes such as spin up time, the number of start/stops, the number of hours powered on, error rates, operating time, data written and read, and temperature. SMART parameter values are stored in a memory chip inside the drive casing. Changes in the value of some SMART parameters can indicate potential drive failure and help in drive failure analysis.