公开(公告)号：US20240377948A1

公开(公告)日：2024-11-14

申请号：US18424321

申请日：2024-01-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yiwen ZHANG ,  Yanlong YANG ,  Yuqi ZHANG ,  Xing HE

IPC: G06F3/06

Abstract: Provided are a compaction method and device for Sorted String Table (SST) files stored in zones of a Zoned Namespace Solid State Drive. The method includes: determining compaction priorities of a first plurality of SST files in a first level of a LSM-Tree based on attribute information of a first plurality of zones corresponding to the first plurality of SST files and a second plurality of SST files in a second level of the LSM-Tree, wherein the second level is adjacent and higher to the first level, a key range of the first plurality of SST files overlaps key ranges of SST files in the second level, and a key range of the second plurality of SST files overlaps key ranges of the first plurality of SST files. The method includes performing a compaction operation on an SST file having a highest compaction priority among the first plurality of SST files.

公开(公告)号：US20250068984A1

公开(公告)日：2025-02-27

申请号：US18584140

申请日：2024-02-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yuqi ZHANG ,  Shuyang WANG ,  Wenwen HAO ,  Yongwong KWON ,  Chankyu KOH

IPC: G06N20/20

Abstract: A method for operating a storage device and the storage device are provided. The method includes obtaining an initial failure warning model comprising a plurality of decision trees, the obtaining the initial failure warning model including being trained with a random forest algorithm based on historical failure related data, the historical failure related data comprising historical multiple operational attributes data of the storage device and failure logs of the storage device, determining high frequency decision nodes in the plurality of decision trees, the high frequency decision nodes being similar single-nodes with at least a first number in the plurality of decision trees, the similar single-nodes being single-nodes having a same monitoring attribute, a same attribute determination symbol, and a difference between attribute thresholds within a first range, and constructing the failure warning model of a new decision tree comprising the high frequency decision nodes.

公开(公告)号：US20240160511A1

公开(公告)日：2024-05-16

申请号：US18451460

申请日：2023-08-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wenwen HAO ,  Yuqi ZHANG ,  Chankyu KOH ,  Yongwong KWON

IPC: G06F11/07

CPC classification number: G06F11/0751 ,  G06F11/0727

Abstract: A failure prediction apparatus and method for storage devices are provided, the method including: obtaining attribute information of a plurality of attributes for a plurality of storage devices during operation of a storage apparatus; obtaining global attribute information for each of the plurality of storage devices based on the attribute information of the plurality of attributes obtained within a first time window before the current time; and predicting failures for the plurality of storage devices using a trained machine-learning model based on attribute information of the plurality of attributes of each of the plurality of storage devices obtained within a second time window before the current time and the global attribute information of each of the plurality of storage devices.