SMART Utility is a Mac OS X application that assists users in monitoring the health of their hard drive. SMART stands for "Self-Monitoring, Analysis and Reporting Technology" and is a feature built into most modern hard drives. The utility can detect signs of imminent hard drive failure and alert the user to take corrective action before data loss occurs. The utility also provides an intuitive graphical interface that allows users to check the status of their hard drive and its various components. It provides detailed information about the drive, such as its temperature, power-on hours, and S.M.A.R.T. attributes. The app also offers temperature monitoring, which helps users identify potential problems before they become serious. The utility allows users to run diagnostics, back up their data, and securely erase their drive if necessary.
Discontinued project has been discontinued by notice: http://hddguardian.codeplex.com/
Discontinued The latest version 4.6 was released in 2005. See http://hddguru.com/software/2005.10.02-MHDD/mhdd_changelog.en.html
Discontinued The developer promised new versions, but the program seems to be no longer updated. The latest version, 4.52, released in June 2016, can still be downloaded from the official website.