The smartmontools package contains two utility programs (smartctl and smartd) to control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA and SCSI harddisks.



Hard Disk Sentinel is not available for Mac but there are a few alternatives that runs on macOS with similar functionality. The best Mac alternative is smartmontools, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Hard Disk Sentinel and three of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Hard Disk Sentinel are DriveDx and SMARTReporter.
The smartmontools package contains two utility programs (smartctl and smartd) to control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA and SCSI harddisks.



DriveDx is advanced drive health diagnostic and monitoring utility. Unlike most drive utilities, DriveDx does not only monitor the drive’s built-in S.M.A.R.T. status, but also analyzes the changes of all drive health indicators that are closely related to HDD or SSD failures...




SMARTReporter is an application that can warn you of some hard disk drive failures before they actually happen! It does so by periodically polling the built-in S.M.A.R.T. status of your hard disk drives as well as performing other checks for "I/O errors" or R.A.I.


