Memory device, memory system and mapping information recovering method

摘要

Disclosed is a memory device which comprises a data storing part having plural physical storage spaces; and a control part for storing data in the data storing part, wherein each of the physical storage spaces comprises a main area for storing user data at a write operation and a spare area for storing additional data other than the user data, the additional data including a logical address corresponding to a physical storage space and a link value indicating a physical storage space to be accessed next.

主权项

1. A memory device comprising:
a memory unit; and a controller configured to control the memory unit, wherein the memory unit includes,
a plurality of physical storage spaces, each of the plurality of physical storage spaces being a page of flash memory including,
a main area for storing user data during a write operation, anda spare area storing additional data other than the user data, the additional data including a logical address corresponding to a physical storage space and a link value indicating a physical storage space to be accessed next, wherein the memory device is configured to perform a mapping information recovery operation using a forward link scanning operation, which includes scanning a next physical storage space according to the link value included in the additional data of a physical storage space from among the plurality of physical storage spaces, and wherein the controller is configured such that the forward link scanning operation includes,
scanning a physical storage space, from among the plurality of physical storage spaces, in which user data is not stored, andending the forward link scanning operation in response to the scanning of the physical storage space in which user data is not stored.