Skhynix Inc.

Du Yeong Roh

Yong Jin

Dong Ju Lee

Tae Jin Choi

Provided is an operating method of a memory system including a plurality of logical address groups each having a preset logical address range. The operation method may include: selecting a victim block; selecting a plurality of target blocks among empty blocks; mapping at least one logical address group of the logical address groups to each of the target blocks; determining a first logical address group including a logical address of first valid data stored in the victim block, among the logical address groups; and backing up the first valid data into a first target block mapped to the first logical address group among the target blocks.

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Gyeonggi-do, South Korea

Du Yeong Roh