Method for managing address mapping information and storage device applying the same

A storage device comprising:

• a storage medium;
• a storage medium interface configured to write or read data by accessing the storage medium;
• a volatile memory device;
• a non-volatile memory device;
• and
• a processor configured to control the storage medium interface to write data on the storage medium or read data from the storage medium,
• wherein the processor generates address mapping recovery information in response to a write operation to store in the volatile memory device, writes the address mapping recovery information stored in the volatile memory device on a user data area of the storage medium in an initially set size unit, reads the address mapping recovery information from the volatile memory device using preliminary power when an abnormal power off occurs so as to store in the non-volatile memory device, and reads the address mapping recovery information written on the storage medium based on the address mapping recovery information stored in the non-volatile memory device so as to update address mapping information.