Memory systems, methods of operating thereof, memory controllers and storage mediums

A memory system, comprising:

• a memory controller, and
• a memory device coupled to the memory controller, the memory device comprising a plurality of dies divided into a plurality of memory regions;
• wherein the memory controller is configured to:
• migrate a partial user data stored in a faulty memory block in a first memory region to a target memory block in the first memory region based on at least one faulty memory block exists in a first memory region of the plurality of memory regions;
• update a first physical address for storing the user data, based on the partial user data migrated to the target memory block in the first memory region, wherein the first physical address points to the first memory region;
• re-performing a redundant array coding operation on the partial user data migrated to the target memory block in the first memory region and remaining user data that is not migrated in the first memory region to generate first check data;
• allocate a third physical address for storing the first check data, and record the third physical address;
• wherein the third physical address points to a second memory region of the plurality of memory regions that is different from the first memory region;
• and
• send a third writing instruction comprising the third physical address to the memory device, wherein the third writing instruction indicates to write the first check data into the second memory region.

A method of operating a memory system, comprising:

• performing a redundant array coding operation on user data to generate check data;
• allocating a first physical address for storing the user data, wherein the first physical address points to a first memory region of a plurality of memory regions of a memory device in the memory system;
• allocating a second physical address for storing the check data, and recording the second physical address;
• wherein the second physical address points to a second memory region of the plurality of memory regions that is different from the first memory region;
• sending a first writing instruction comprising the first physical address to the memory device, wherein the first writing instruction indicates to write the user data into the first memory region;
• and
• sending a second writing instruction that comprises the second physical address and is different from the first writing instruction to the memory device, wherein the second writing instruction indicates to write the check data into the second memory region.