There are three types of self-tests that a device can execute (all are safe to user data):

• Short: runs tests that have a high probability of detecting device problems,
• Extended or Long: the test is the same as the short check but with no time limit and with complete disk surface examination,
• Conveyance: identifies if damage incurred during transportation of the device.

Run test in foreground mode:

smartctl -t short -C /dev/sdd

View test results:

sudo smartctl -l selftest /dev/sdd

https://github.com/hradec/fix_smart_last_bad_sector https://raw.githubusercontent.com/unxed/fixhdd/master/fixhdd.py