Drives have the ability to record each error that occur during their life cycle, even if you normally can recover only the data of the past five errors recorded.
If errors are recorded, they are listed in descending order, displaying the error number, when it occurred and the unit status at the time of the error.
When you select an error you can view the status register after the completion of the command with the error details and settings that generated the error.
Some informations of data displayed is available moving the mouse pointer across this section.
For more information about these types of errors, you should see the
ATA errors log sample
SCSI errors log sample