公开(公告)号：US20230016020A1

公开(公告)日：2023-01-19

申请号：US17939387

申请日：2022-09-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： BYOUNG GEUN KIM ,  KEUNSAN PARK ,  SANGYOON OH ,  BYUNG-KI LEE ,  YONGHWA LEE ,  JOOYOUNG HWANG

IPC: G06F3/06

Abstract: An operation method of a storage device, which includes a nonvolatile memory device, includes receiving a first key-value (KV) command including a first key from an external host device; transmitting a first value corresponding to the first key from the nonvolatile memory device to the external host device as first user data, in response to the first KV command; receiving a second KV command including a second key, from the external host device; and performing a first administrative operation based on a second value corresponding to the second key, in response to the second KV command. The first KV command and the second KV command are KV commands of a same type.

公开(公告)号：US20210216220A1

公开(公告)日：2021-07-15

申请号：US17076619

申请日：2020-10-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： BYOUNG GEUN KIM ,  KEUNSAN PARK ,  SANGYOON OH ,  BYUNG-KI LEE ,  YONGHWA LEE ,  JOOYOUNG HWANG

IPC: G06F3/06

Abstract: An operation method of a storage device, which includes a nonvolatile memory device, includes receiving a first key-value (KV) command including a first key from an external host device; transmitting a first value corresponding to the first key from the nonvolatile memory device to the external host device as first user data, in response to the first KV command; receiving a second KV command including a second key, from the external host device; and performing a first administrative operation based on a second value corresponding to the second key, in response to the second KV command The first KV command and the second KV command are KV commands of a same type.

公开(公告)号：US20220350784A1

公开(公告)日：2022-11-03

申请号：US17866600

申请日：2022-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JE-KYEOM JEON ,  JAE-JU KIM ,  DONG-JU ROH ,  SANG-YOON OH ,  BYUNG-KI LEE ,  SUNG-KUG CHO

IPC: G06F16/22 ,  G06F16/27

Abstract: A key-value storage device includes a non-volatile memory and a controller. The key-value storage device is configured to communicate with a host and includes a controller and a non-volatile memory. The controller is configured to receive, from the host, a first command including a key, a first chunk among multiple chunks included in a value corresponding to the key, and a first chunk index corresponding to the first chunk. The controller is configured to store mapping information of the first chunk in a mapping table based on the key and the first chunk index. The non-volatile memory is configured to store the key and the first chunk based on the mapping information.

公开(公告)号：US20190138612A1

公开(公告)日：2019-05-09

申请号：US16021960

申请日：2018-06-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JE-KYEOM JEON ,  JAE-JU KIM ,  DONG-JU ROH ,  SANG-YOON OH ,  BYUNG-KI LEE ,  SUNG-KUG CHO

IPC: G06F17/30

Abstract: A key-value storage device includes a non-volatile memory and a controller. The key-value storage device is configured to communicate with a host and includes a controller and a non-volatile memory. The controller is configured to receive, from the host, a first command including a key, a first chunk among multiple chunks included in a value corresponding to the key, and a first chunk index corresponding to the first chunk. The controller is configured to store mapping information of the first chunk in a mapping table based on the key and the first chunk index. The non-volatile memory is configured to store the key and the first chunk based on the mapping information.

公开(公告)号：US20190087130A1

公开(公告)日：2019-03-21

申请号：US16055203

申请日：2018-08-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： YONG-HWA LEE ,  YOUNG-HO PARK ,  BYUNG-KI LEE ,  HYUNG-CHUL JANG ,  JE-KYEOM JEON ,  SUNG-KUG CHO

IPC: G06F3/06 ,  G06F11/14 ,  G06F17/30

Abstract: A method of operating a key-value storage device includes a key-value storage device receiving from a host a first command including a first key, a first value, and a first snapshot identification (ID), the key-value storage device generating a first snapshot entry including the first snapshot ID, the first key, and a first physical address in a non-volatile memory device at which the first value is written, in response to the received first command, receiving from the host a second command including the first key, a second value, and a second snapshot ID, and in response to the received second command, the key-value storage device generating a second snapshot entry including the second snapshot ID, the first key, and a second physical address in the non-volatile memory device at which the second value is written.