Look in the column on the left to see if the hard drive appears there. It's not something you can run accidentally - choose the Advanced Tests option and you get a big warning message, and have to press to continue - but just bear this in mind, you need to read all SeaTools messages carefully so you know exactly what the program is going to do. Find Disk Utility by opening Spotlight (cmd+Space-bar) and start typing Disk Utility, press enter to open the program. The program also provides an Advanced Test option, though, which may overwrite data, and so needs to be treated with much more care. These basic tests are (apart from the repair option) entirely non-destructive, so you can run them without worrying about data loss. Simple read tests allow you to confirm that a drive is still working correctly, and a Long Drive Self Test may also be able to repair damaged sectors. You're able to run a quick drive self-test, allowing it to report problems.

status, for instance, if it supports that technology. application found, and the application itself offers additional drive tools for taking full control. The program can check a drive's S.M.A.R.T. Write files to Microsoft NTFS drives on your Mac.

Seagate SeaTools for Windows is a collection of tools that will check your hard drives for hardware problems (although Seagate is the authors, but it works at some level with most drives, regardless of the manufacturer).

Seagate drive utility