Memory device, memory system and mapping information recovering method
AssigneeSamsung Electronics Co., Ltd.
InventorWonmoon Cheon
Life of this patent
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Abstract
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.
Claims15
A memory unit comprising:
- at least one physical storage space including
- a main area for storing user data during 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.
A mapping information recovering method of a memory system which includes a memory device and a memory controller controlling the memory device, the memory device comprising a physical storage space having 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, the method comprising:
- reading first mapping information from a meta area;
- scanning the user area using forward link scanning based on the link value to take second mapping information;
- and
- recovering mapping information from the first mapping information and the second mapping information.
Dependencies are inferred from the claim text.