Quick stats:
sudo /usr/sbin/smartctl -a /dev/sda (show smartctl status) sudo /usr/sbin/smartctl -t short /dev/sda (start short 2 minute test, in background) sudo /usr/sbin/smartctl -l selftest /dev/sda (monitor test status) sudo /usr/sbin/smartctl -l error /dev/sda (dump test errors)
The longer testing mode can be done while jobs are running (non-destructive)