Data management method and storage device performing the same

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 store...

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Bibliographic Details
Main Authors Hwang, Joo-Young, Doh, In-Hwan
Format Patent
LanguageEnglish
Published 19.05.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary: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.
Bibliography:Application Number: US201816037169