Hitachi has posted an update to their Drive Fitness Test (DFT). This is one of my preferred hard drive test tools, because unlike drive makers, they don’t block other company’s hard drives.
The tool runs both a SMART scan as well as a full sector scan, and a few other notable tests. If you have an internal hard drive… this tests it. Since Samsung and Toshiba don’t even offer public disk diagnostic tools, you’ll want it for those, as well as IBM and Hitachi.
The tool is available in many formats, but the one you probably want is the bootable ISO image.