Flash memory apparatus and storage management method for flash memory

A flash memory storage management method used in a flash memory module having a plurality of first blocks and at least one second block, comprising:

• classifying data to be programmed into a plurality of groups of data;
• respectively executing single-level-cell programming and RAID-like (Redundant Array of Independent Disks-like) RS (Reed-Solomon) error code encoding to generate a corresponding parity check code to program the groups of data and the corresponding parity check code to the plurality of first blocks;
• and
• controlling the flash memory module to perform an internal copy operation to program the at least one second block of the flash memory module according to the plurality of first blocks of the flash memory module;
• a cell of one first block is used for storing a data amount smaller than a data amount stored by a cell of one second block.

A flash memory controller coupled to a flash memory module comprising a plurality of first blocks and at least one second block, and the flash memory controller comprises:

• a plurality of channels respectively connected to the flash memory module;
• and
• the flash memory controller is configured for:
• classifying data to be programmed into a plurality of groups of data, respectively executing single-level-cell programing and RAID-like (Redundant Array of Independent Disks-like) RS (Reed-Solomon) error code encoding to generate a corresponding parity check code to program the groups of data and the corresponding parity check code to the plurality of first blocks;
• and
• when completing program of the plurality of first blocks, controlling the flash memory module to perform an internal copy operation to program the at least one second block of the flash memory module according to the plurality of first blocks of the flash memory module;
• a cell of one first block is used for storing a data amount which is smaller than a data amount stored by a cell of one second block.