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公开(公告)号：US20190163621A1
公开(公告)日：2019-05-30
申请号：US16037169
申请日：2018-07-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： IN-HWAN DOH , JOO-YOUNG HWANG
Abstract: In a data management method for a storage device, the storage device includes a nonvolatile memory device including a plurality of memory blocks. A TRIM-after-COPY command is received from an external host such that a data compaction operation is performed on a first storage region. Valid data stored in the first storage region are internally copied into a second storage region based on the TRIM-after-COPY command. A TRIM operation is performed based on the TRIM-after-COPY command to update a logical-to-physical address mapping table and a valid page bitmap.
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