I did perform the self-test function, the long version that says it will take 10s of minutes. Some of the errors were displayed with red text before the test. After the self test, it said that my drive passed and all the red errors showed up as “Old age” in black text, every single one.
They meant the SMART self-test, not SMART data readout. Those are not meant to be interpreted by laymen and often not even experts.
I did perform the self-test function, the long version that says it will take 10s of minutes. Some of the errors were displayed with red text before the test. After the self test, it said that my drive passed and all the red errors showed up as “Old age” in black text, every single one.
(This is in the GUI app for smartctl)