Data management method and storage device

A data management method, for a storage device, wherein the storage device is electrically connected to a host system, the storage device comprises a memory module, the memory module comprises a plurality of physical units, and the data management method comprises:

• selecting a plurality of source physical units in the plurality of physical units in response to a preparatory host data consolidation command of the host system;
• searching a mapping table according to physical addresses of the source physical units, and transmitting the mapping table corresponding to the source physical units to the host system to execute a host data consolidation process;
• performing a corresponding programming operation on data corresponding to a programming command from the host system;
• and
• after receiving an updated mapping table sent by the host system, a device data consolidation process is executed according to the updated mapping table.

A storage device, comprising:

• a connecting interface unit for connecting to a host system;
• a memory module comprising a plurality of physical units;
• and
• a memory controller connected to the connecting interface unit and the memory module and used to perform a plurality of steps:
• selecting a plurality of source physical units in the plurality of physical units in response to a preparatory host data consolidation command of the host system;
• searching a mapping table according to physical addresses of the source physical units, and transmitting the mapping table corresponding to the source physical units to the host system to execute a host data consolidation process;
• performing a corresponding programming operation on data corresponding to a programming command from the host system;
• wherein
• in response to the programming command being an update command, an update operation is performed on data corresponding to the update command,
• in response to the programming command being a delete command, a delete operation is performed on data corresponding to the delete command;
• and
• after receiving an updated mapping table sent by the host system, a device data consolidation process is executed according to the updated mapping table.