Operation methods of memory systems, memory controllers, memory systems, and storage mediums

A memory controller, comprising:

• a buffer configured to:
• store first data information and second data information, wherein an id and erase count of a virtual block are stored in the first data information, the id and a hot id of the virtual block are stored in the second data information, and the hot id represents a hot degree of data stored in the corresponding virtual block;
• and
• a processor coupled with the buffer, and configured to:
• obtain the erase count and the hot id of the virtual block;
• determine a relationship between a difference between a maximum erase count and a minimum erase count of the virtual block and a threshold;
• in response to the difference between the maximum erase count and the minimum erase count of the virtual block being greater than the threshold, determine a first virtual block from which data is moved and a second virtual block into which the data is moved according to the erase count and the hot id of the virtual block;
• and
• move the data stored in the first virtual block to the second virtual block, wherein the movement of the data configures the second virtual block into an idle state and configures the first virtual block into a use state.

A memory system, comprising:

• a memory including a plurality of blocks, and
• a memory controller coupled to the memory through a flash interface circuit, and configured to:
• obtain an erase count and a hot id of a virtual block, wherein the virtual block includes at least one block, and the hot id represents a hot degree of data stored in the corresponding virtual block;
• determine a relationship between a difference between a maximum erase count and a minimum erase count of the virtual block and a threshold;
• in response to the difference between the maximum erase count and the minimum erase count of the virtual block being greater than the threshold, determine a first virtual block from which data is moved and a second virtual block into which the data is moved according to the erase count and the hot id of the virtual block;
• and
• move the data stored in the first virtual block to the second virtual block, wherein the movement of the data configures the second virtual block into an idle state and configures the first virtual block into a use state.