1. Quick check
/usr/sbin/smartctl -q errorsonly -H -l selftest -l error /dev/sdX2. Run some tests if the command above reported any errors:
smartctl -t short /dev/sdX && smartctl -l selftest /dev/sdX
/usr/sbin/smartctl -q errorsonly -H -l selftest -l error /dev/sdX2. Run some tests if the command above reported any errors:
smartctl -t short /dev/sdX && smartctl -l selftest /dev/sdX