STORAGE DEVICE, CONTROL METHOD OF STORAGE DEVICE, AND STORAGE MEDIUM

A storage device comprises a flash memory and processing circuitry. The processing circuitry is configured to divide a storage area into pages to manage the storage area, and deletes each of the blocks including a plurality of pages. The processing circuitry receives a write instruction including ad...

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Bibliographic Details
Main Authors SUGAHARA, Noriaki, AZUMA, Shuichiro, MAKUNI, Kazuki, NAKASE, Yu
Format Patent
LanguageEnglish
Published 08.10.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A storage device comprises a flash memory and processing circuitry. The processing circuitry is configured to divide a storage area into pages to manage the storage area, and deletes each of the blocks including a plurality of pages. The processing circuitry receives a write instruction including address information specifying a writing location of the data, and stores, with respect to a plurality of groups in which each group includes one or more blocks, a plurality of group identification information each identifying a group and information specifying blocks included in the group in association with each other. The processing circuitry performs a predetermined calculation to obtain group identification information, and identifies a group including a block including pages onto which data is to be written according to the write instruction. Finally, the processing circuitry writes the data onto the pages of the block included in the group identified.
Bibliography:Application Number: US202016823342