STORAGE DEVICE AND OPERATING METHOD OF STORAGE DEVICE

    公开(公告)号:US20190146926A1

    公开(公告)日:2019-05-16

    申请号:US16012808

    申请日:2018-06-20

    Abstract: A storage device includes a memory device and a controller that translates a logical address received from a host into a physical address for the memory device. The controller manages correspondence information indicating a correspondence relationship between logical addresses and physical addresses and a mapping function for determining a mapping unit corresponding to the received logical address in a partial memory area on the memory device indicated by a physical address managed in the correspondence information. The mapping unit corresponding to the received logical address is an area on the memory device indicated by the received logical address. The controller determines the partial memory area including the mapping unit corresponding to the received logical address with reference to the correspondence information and determines the mapping unit from the partial memory area by using the mapping function.

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