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Samsung electronics co., ltd. (20250094078). STORAGE DEVICE AND OPERATING METHOD OF STORAGE CONTROLLER

From WikiPatents

STORAGE DEVICE AND OPERATING METHOD OF STORAGE CONTROLLER

Organization Name

samsung electronics co., ltd.

Inventor(s)

Eun Chu Oh of Suwon-si KR

Beomkyu Shin of Suwon-si KR

STORAGE DEVICE AND OPERATING METHOD OF STORAGE CONTROLLER

This abstract first appeared for US patent application 20250094078 titled 'STORAGE DEVICE AND OPERATING METHOD OF STORAGE CONTROLLER

Original Abstract Submitted

the present disclosure provides storage devices and methods for operating the same. in some embodiments, a storage device includes a non-volatile memory including a plurality of sub-blocks that are independently erasable, and a processor configured to control a garbage collection operation on the plurality of sub-blocks. the plurality of sub-blocks includes a plurality of first sub-blocks that have a first block size and a plurality of second sub-blocks that have a second block size. the second block size is different from the first block size. the processor is further configured to select a victim sub-block with a lowest ratio of a valid page count to an invalid page count from among the plurality of sub-blocks, and copy a valid page of the victim sub-block to a target sub-block from among the plurality of sub-blocks.

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