Patent ID: 11868645
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 10:
11. A method of operating a storage device comprising a memory device configured to perform patrol read operations, the method comprising:
controlling the memory device by providing block address information to the memory device based on a patrol read command and reliability information for each of a plurality of memory cell blocks, the reliability information generated based on weighted retention times and weighted program-erase counts;
generating information regarding reclaim target blocks on which reclaim operations are to be performed from among the memory cell blocks on which the patrol read operations are performed; and
controlling the memory device to perform the patrol read operations in response to the patrol read command such that the patrol read operations are performed in an ascending order of reliabilities of the memory cell blocks based on the reliability information,
wherein the block address information comprises an order of the patrol read operations for the memory cell blocks based on the reliability information, and
the order of the patrol read operation indicates a first memory cell block having a highest priority, a second memory cell block having a lowest priority and a third memory cell block having a priority between the highest priority and the lowest priority.