DATA STORAGE DEVICE AND BAD BLOCK MANAGING METHOD THEREOF

摘要

PURPOSE: A data storage apparatus and bad block management method thereof are provided to discontinuously change the virtual address space of a user data area by eliminating the virtual address of the bad block from a map table. CONSTITUTION: A control unit(200) manages the mapping of a virtual address space, a storage medium(100), and a logical address space. The virtual address space is changed in the storage medium. When a bad block is created in the storage medium, the control unit changes the virtual address space discontinuously. The storage medium includes a user data area(101a) and a reserved area(101b). The virtual address space is faced with the user data area.