公开(公告)号：US20220164123A1

公开(公告)日：2022-05-26

申请号：US17377901

申请日：2021-07-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hwan KIM ,  Jea-Young KWON ,  Jae-Kun LEE ,  Song Ho YOON ,  Sil Wan CHANG

IPC: G06F3/06 ,  G06F11/10 ,  G11C11/56 ,  G11C16/26 ,  G11C16/10

Abstract: A storage device may include, at least one memory device including at least a first single-level cell (SLC) region, a second SLC region, and at least one multi-level cell (MLC) region, the first SLC region having a higher data read speed than the second SLC region, and the second SLC region having a higher data read speed than the at least one MLC region, and a storage controller configured to control the migration of data among the first SLC region, the second SLC region, and the at least one MLC region.

公开(公告)号：US20240220158A1

公开(公告)日：2024-07-04

申请号：US18459471

申请日：2023-09-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junho KIM ,  Jea-Young KWON ,  Jaesub KIM ,  Yangwoo ROH ,  Hongmoon WANG

IPC: G06F3/06

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

Abstract: A storage device includes a nonvolatile memory device including a plurality of zones, each of the plurality of zones including a plurality of logical addresses, and a storage controller configured to control the nonvolatile memory, the storage controller including at least one buffer directly accessible by a host device, the buffer including at least one random write area and a write pointer, the write pointer configured to store a position indicating a starting logical address of the random write area, and the buffer configured to write data into the random write area based on the position of the write pointer in response to the buffer receiving the write data from the host device.

公开(公告)号：US20220206893A1

公开(公告)日：2022-06-30

申请号：US17466392

申请日：2021-09-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Kun LEE ,  Jea-Young KWON ,  Hwan KIM ,  Song Ho YOON ,  Sil Wan CHANG

IPC: G06F11/10 ,  G06F11/07 ,  G06F3/06

Abstract: A storage system may include a memory device including a first region including a single-level cell and a second region different from the first region, and a storage controller configured to read data from the first region at a first gear level of a plurality of gear levels, determine an error level of the read data and a state of the memory device, and change the first gear level to a second gear level of the plurality of gear levels based on the determined error level of the data and the determined state of the memory device.

公开(公告)号：US20250147693A1

公开(公告)日：2025-05-08

申请号：US18813697

申请日：2024-08-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jooyoung HONG ,  Jea-Young KWON ,  Jaesub KIM ,  Yangwoo ROH ,  Hyun-Ho SEO ,  Junyong UHM

IPC: G06F3/06

Abstract: A storage system includes a host, and a storage device configured to receive, from the host, a plurality of first type commands, measure a plurality of latencies of the plurality of first type commands, count a number of occurrences of the plurality of latencies within a first time period, the first time period being a time length among the plurality of latencies, generate latency data including time points when each of the plurality of first type commands are received, based on the number of occurrences exceeding a predetermined threshold value, and output, to the host, the latency data based on an asynchronous event request (AER) command being received from the host.

公开(公告)号：US20250068352A1

公开(公告)日：2025-02-27

申请号：US18640433

申请日：2024-04-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youkun SHIN ,  Jea-Young KWON ,  Jaesub KIM ,  Yangwoo ROH ,  Hongmoon WANG

IPC: G06F3/06

Abstract: Disclosed is a method of operating a storage device which communicates with a host device. The method includes receiving a first request indicating a setting operation of a first virtual function corresponding to a first virtual machine from the host device executing the first virtual machine, the first request including first requirement level information of the first virtual machine, setting a first performance attribution of the first virtual function, based on the first requirement level information, and providing the host device with a done response indicating that the first performance attribution is set.

公开(公告)号：US20240241835A1

公开(公告)日：2024-07-18

申请号：US18531155

申请日：2023-12-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungjin KIM ,  Jea-Young KWON ,  Jaesub KIM ,  Hongmoon WANG

IPC: G06F12/1027

CPC classification number: G06F12/1027

Abstract: A storage device includes a nonvolatile memory and a controller configured to manage data, stored in the nonvolatile memory, through a plurality of namespaces. The plurality of namespaces may include a first namespace, allocated to a first logical address space, and a second namespace allocated to a second logical address space, contiguous to the first logical address space. The controller may be configured to delete the first namespace in the first logical address space in response to a request of deleting the first name space, to copy the mapping information on the second namespace from the second logical address space to the first logical address space, and to load the mapping information on the second namespace into a cache.

公开(公告)号：US20220066872A1

公开(公告)日：2022-03-03

申请号：US17352861

申请日：2021-06-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jea-Young KWON ,  Young-Jin PARK ,  Jae-Kun LEE ,  Song Ho YOON ,  Sil Wan CHANG

IPC: G06F11/10 ,  G06F11/07 ,  G06F11/14 ,  G06F3/06

Abstract: A storage device is provided. The storage device includes a memory device including a memory cell array configured to store metadata and main data and a storage controller configured to access the memory device and control the memory device, wherein the storage controller is configured to read data from the memory device at a speed adaptively varying to a first read speed or a second read speed according to a state of the memory device, the second read speed being faster than the first read speed.