Method of performing read/write process on recording medium, parameter adjustment method, storage device, computer system, and storage medium employing the methods

A method comprising steps of:

• writing, by a processor of a disc drive, test data to a data region on a recording medium of the disc drive;
• reading, by the processor, the test data from the data region;
• counting, by the processor, a total number of error-corrected error correcting code (“ECC”) symbols in the read of a data sector in the data region;
• determining, by the processor, whether the total number of error-corrected ECC symbols exceeds a first threshold value;
• and
• upon determining that the total number of error-corrected ECC symbols exceeds the first threshold value, determining, by the processor, the data sector to be a defective sector.

A storage device comprising:

• a recording medium comprising a plurality of tracks, each of the plurality of tracks comprising a plurality of data sectors;
• a media interface which writes information to, or reads information from, the recording medium by accessing the recording medium;
• a processor which controls the media interface to write data to, or read data from, the plurality of data sectors of a target track of the recording medium;
• and
• a memory containing code objects configured to cause the processor to
• write test data to the plurality of data sectors of the target track,
• read the test data from the plurality of data sectors of the target track,
• count a total number of error-corrected error correcting code (“ECC”) symbols in the read of each of the plurality of data sectors,
• determine whether the total number of error-corrected ECC symbols of a data sector exceeds a first threshold value, and
• upon determining that the total number of error-corrected ECC symbols exceeds the first threshold value, determining the data sector to be a defective sector.