HDD Scan 3.3 is a free application for your complete hard drive diagnostics, for example RAID arrays, Flash USB and SSD drives are also supported. This software also can can test storage device for errors (Bad-blocks and bad sectors), show S.M.A.R.T. attributes and change some HDD parameters such as AAM, APM, etc.
HDD Scan very useful for performing the regular “health test” for your drive and predicting its degradation, so you will be able to prevent data loss and backup your files before you will have to contact the data recovery service. And also this program can be used as the hard disk temperature monitor and reading/writing benchmark – performance graph is displayed for every test.