Data storage device with re-allocation processing which determines an order in which re-allocation processing is executed for defective sectors

A data storage device comprising:

• a read control part which performs control to receive a read command, and read out data from a plurality of sectors on a medium corresponding to the read command;
• a re-allocation-processing order determination part which determines an order in which re-allocation processing is executed for defective sectors included in the plurality of sectors whose data has been read out;
• and
• a re-allocation-processing control part which controls the re-allocation processing for the defective sectors on the basis of the re-allocation-processing order determined by the re-allocation-processing order determination part,
• wherein:
• the end timing of the re-allocation processing for a plurality of defective sectors is determined so that a command completion notification of the read command is transmitted before a timeout period of the read command elapses.

A data storage device comprising:

• a read control part which performs control to receive a read command, and read out data from a plurality of sectors on a medium corresponding to the read command;
• a re-allocation-processing order determination part which determines an order in which re-allocation processing is executed for defective sectors included in the plurality of sectors whose data has been read out;
• and
• a re-allocation-processing control part which controls the re-allocation processing for the defective sectors on the basis of the re-allocation-processing order determined by the re-allocation-processing order determination part,
• wherein:
• said re-allocation-processing order determination part determines the re-allocation-processing order on the basis of retry processing performed when data has been read out from each sector.