公开(公告)号：US12293095B2

公开(公告)日：2025-05-06

申请号：US18517307

申请日：2023-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hao Yan

IPC: G06F3/06

Abstract: A storage device includes: a NAND chip array having a plurality of NAND chips; a ZONE switcher configured to control output of write data to a ZONE cache when a ZONE write command is received; the ZONE cache configured to cache the write data in a cache space corresponding to a ZONE among a plurality of zones; and a ZONE persistence controller configured to control storing, in parallel, the write data in at least two of the plurality of ZONEs cached in the ZONE cache in NAND chips of the NAND chip array corresponding to the plurality of ZONEs.

公开(公告)号：US20250068343A1

公开(公告)日：2025-02-27

申请号：US18517307

申请日：2023-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hao Yan

IPC: G06F3/06

Abstract: A storage device includes: a NAND chip array having a plurality of NAND chips; a ZONE switcher configured to control output of write data to a ZONE cache when a ZONE write command is received; the ZONE cache configured to cache the write data in a cache space corresponding to a ZONE among a plurality of zones; and a ZONE persistence controller configured to control storing, in parallel, the write data in at least two of the plurality of ZONEs cached in the ZONE cache in NAND chips of the NAND chip array corresponding to the plurality of ZONEs.

公开(公告)号：US11537582B2

公开(公告)日：2022-12-27

申请号：US17354397

申请日：2021-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Lijuan Xue ,  Hao Yan ,  Sha Shi ,  Yufang Li ,  Wenbin Cao

IPC: G06F16/22 ,  G06F16/2455 ,  G06F16/248 ,  G06F16/215

Abstract: Provided is a data access method including generating an index corresponding to a key in a first key-value pair in response to receiving the first key-value pair, writing the key-index pair corresponding to the key and the index into a block storage device, the key-index pair being stored in the block storage device in a log-structured merge-tree (LSM-Tree) structure, writing an index-value pair corresponding to the index and the value in the first key-value pair into a key-value solid state drive (KV SSD).

公开(公告)号：US20240394238A1

公开(公告)日：2024-11-28

申请号：US18348257

申请日：2023-07-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Xing HE ,  Hao Yan ,  Zhao Chen ,  Yanlong Yang ,  Yiwen Zhang

IPC: G06F16/22

Abstract: A data processing method and device are provided. The data processing method includes acquiring hot keys read from a log structure merge (LSM) tree within a preset duration, determining a total size of the read hot keys, and adjusting a size of each of a plurality of levels of the LSM tree based on the total size of the read hot keys.

公开(公告)号：US20220335028A1

公开(公告)日：2022-10-20

申请号：US17354397

申请日：2021-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Lijuan XUE ,  Hao Yan ,  Sha Shi ,  Yufang Li ,  Wenbin Cao

IPC: G06F16/22 ,  G06F16/215 ,  G06F16/248 ,  G06F16/2455

Abstract: Provided is a data access method including generating an index corresponding to a key in a first key-value pair in response to receiving the first key-value pair, writing the key- index pair corresponding to the key and the index into a block storage device, the key-index pair being stored in the block storage device in a log-structured merge-tree (LSM-Tree) structure, writing an index-value pair corresponding to the index and the value in the first key-value pair into a key-value solid state drive (KV SSD).