SMART: A Brief Description
This document briefly describes Self-Monitoring, Analysis, and Reporting Technology (SMART).
Self-Monitoring, Analysis, and Reporting Technology (SMART) is used to monitor and communicate the status of hard disk performance, and in some cases whether a hard drive failure is anticipated.
SMART-enabled devices monitor data such as disk calibration, CRC errors, disk spin up time, rotational speed of the disk, distance between the head and the disk, and temperature.
By regularly sampling and comparing data, SMART-enabled devices can determine the 'health' of a hard drive, which in turn can provide predictive capabilities (called Predictive Failure Analysis or PFA).
Related Documents
152349: Mac OS X 10.3 Help: Replacing a disk before it fails