Hard Disk Sentinel is described as «Monitoring hard disk health and temperature. Test and repair HDD problems and predict failures. Prevent data loss by automatic and scheduled backup» and is a popular hard disk diagnostic tool in the os & utilities category. There are more than 25 alternatives to Hard Disk Sentinel for Windows, Mac, Linux, BSD and PortableApps.com. The best alternative is CrystalDiskInfo, which is both free and Open Source. Other great apps like Hard Disk Sentinel are HD Tune, smartmontools, Victoria and Samsung Magician.Hard Disk Sentinel alternatives are mainly Hard Disk Diagnostic Tools but may also be Benchmark Tools or Hard Disk Benchmark Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Hard Disk Sentinel.