公开(公告)号：US20240370196A1

公开(公告)日：2024-11-07

申请号：US18380945

申请日：2023-10-17

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Youngmin LEE ,  Seongheum BAIK ,  Myungsub SHIN ,  Seongyong JANG ,  Gyuseok CHOE

IPC: G06F3/06

Abstract: Disclosed is a storage device which includes a nonvolatile memory device that includes a plurality of erase units each including a plurality of memory cells, and a memory controller. Based on an open zone request received from an external host device, the memory controller allocates a zone to at least one erase unit among the plurality of erase units and permits only a sequential write with respect to the zone. The memory controller generates a map table mapping sequential logical addresses of data written in the zone to sequential physical addresses. Based on a partial invalidation request received from the external host device, the memory controller manages data corresponding to the partial invalidation request from among the data written in the zone as invalid data while maintaining the map table.

公开(公告)号：US20240272816A1

公开(公告)日：2024-08-15

申请号：US18497087

申请日：2023-10-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Gyuseok CHOE ,  Seongheum BAIK ,  Myungsub SHIN ,  Youngmin LEE ,  Seongyong JANG

IPC: G06F3/06

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/0647 ,  G06F3/0656 ,  G06F3/0679

Abstract: A storage device and an operating method of the same are disclosed. The storage device includes a memory controller and a non-volatile memory, wherein the memory controller is configured to calculate a number of zones, which are spaces allocated to logical addresses, based on a cell area size of first storage areas of the non-volatile memory, and provide the number of zones to a host, is configured to generate multiple zones of a number within the calculated number of zones, and to map a logical address of each zone to a physical address of at least one of the first storage areas, and is configured to, in response to a first write request from the host, write data included in the first write request into first storage areas corresponding to a zone indicated by the first write request.