公开(公告)号：US10108636B2

公开(公告)日：2018-10-23

申请号：US14711647

申请日：2015-05-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bon-Cheol Gu ,  Ju-Pyung Lee

IPC: G06F17/30

Abstract: Data deduplication is performed by separating data into a plurality of data chunks that correspond to first through Nth positions and include symbols, calculating discrimination indices of the positions using frequencies of the symbols in the different positions; arranging the order of the positions based on values of the discrimination indices; and generating fingerprints of the data through combination of data chunks that correspond to a number of the positions, based on the arranged order of the positions.

公开(公告)号：US09372788B2

公开(公告)日：2016-06-21

申请号：US14143125

申请日：2013-12-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bon-Cheol Gu ,  Ju-Pyung Lee

IPC: G06F12/02 ,  G06F3/06

CPC classification number: G06F12/023 ,  G06F3/0616 ,  G06F3/0644 ,  G06F3/0688

Abstract: A method includes determining a size of a recommended spare memory space of each of one or more storage nodes based on a state of the storage nodes, and adjusting a spare memory space of each of the storage nodes based on the size of the recommended spare memory space.

Abstract translation: 一种方法包括：基于存储节点的状态来确定一个或多个存储节点中的每一个的推荐备用存储器空间的大小，以及基于推荐的备用存储器的大小来调整每个存储节点的备用存储器空间 空间。

公开(公告)号：US10296225B2

公开(公告)日：2019-05-21

申请号：US15977883

申请日：2018-05-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myung-June Jung ,  Ju-Pyung Lee ,  Gae-Won You ,  Hoshik Lee

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F3/06 ,  G06F12/0866 ,  G06F12/0862

Abstract: A storage controller includes a co-access pattern mining unit configured to detect co-access patterns of data co-accessed during a particular time duration and to generate co-access groups including a plurality of pieces of data complying with the co-access patterns. The storage controller further include a co-access group matching unit configured to select a co-access group matched with read-requested data, among the generated co-access groups, and a data placement unit configured to store the data included in the selected co-access group in a pre-fetch buffer.

公开(公告)号：US10282260B2

公开(公告)日：2019-05-07

申请号：US15183435

申请日：2016-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ju-Pyung Lee ,  Chang-Man Lee

IPC: G06F11/14 ,  G06F11/16 ,  G06F11/00 ,  G06F12/02

Abstract: The method of operating a storage system includes executing a storage service providing storage of a volume unit to at least one host device, in which the volume includes a first volume and a second volume. The method includes giving a first priority and a second priority lower than the first priority to the first volume and the second volume, respectively, and recovering meta-data for the first volume having the first priority when the storage service is stopped. The method includes starting the storage service using the recovered meta-data for the first volume, and recovering meta-data for the second volume having the second priority.

公开(公告)号：US10942667B2

公开(公告)日：2021-03-09

申请号：US15458058

申请日：2017-03-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ju-Pyung Lee ,  Jee-Seok Hyun ,  Hye-Sung Kim

IPC: G06F12/00 ,  G06F3/06

Abstract: A redundant array of independent disks (RAID) storage system includes a plurality of storage devices that perform an erase operation according to a plurality of erase unit sizes. A RAID controller controls the plurality of storage devices based on a RAID environment. The RAID controller adjusts the erase unit sizes with respect to at least some of the plurality of storage devices, respectively.

公开(公告)号：US10108635B2

公开(公告)日：2018-10-23

申请号：US14558199

申请日：2014-12-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun-Jung Shin ,  Ju-Pyung Lee

IPC: G06F17/30

Abstract: A deduplication method using data association information includes extracting information about a target file and at least one reference file associated with the target file as association information before duplication determination is performed. The at least one reference file is identified by the association information as a comparison target set for comparison when the duplication determination of the target file is performed. The duplication determination is performed with the target file with respect to the at least one reference file in the selected comparison target set.

公开(公告)号：US20180088812A1

公开(公告)日：2018-03-29

申请号：US15497258

申请日：2017-04-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ju-Pyung Lee

IPC: G06F3/06

CPC classification number: G06F3/064 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/0625 ,  G06F3/0653 ,  G06F3/0656 ,  G06F3/0661 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2212/1041 ,  G06F2212/7201 ,  Y02D10/154

Abstract: A method of operating a storage device including at least one nonvolatile storage and a storage controller configured to control the nonvolatile storage. A first type of request, original data and a first request information associated with the original data are received, in the storage controller, from an external host device, a compression operation to compress the original data to generate compressed data is performed in the storage controller, in response to the first type of request, and a write operation to write the compressed data in a data storage area of the nonvolatile storage is performed in the storage controller. The data storage area of the nonvolatile storage may store the first request information associated with the original data. The external host may manage mapping information in the form of a mapping table associated with compression/decompression at the storage device.

公开(公告)号：US09858197B2

公开(公告)日：2018-01-02

申请号：US14460833

申请日：2014-08-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myung-June Jung ,  Ju-Pyung Lee

IPC: G06F12/06 ,  G06F12/08 ,  G06F12/0897 ,  G06F12/0868

CPC classification number: G06F12/0897 ,  G06F12/0868 ,  G06F2212/1021 ,  G06F2212/601

Abstract: A cache management apparatus includes an access pattern analysis unit configured to analyze an access pattern of each of one or more pages present in a first cache by monitoring data input/output (I/O) requests, a page class management unit configured to determine a class of each of the pages based on results of the analysis performed by the access pattern analysis unit, and a page transfer management unit configured to transfer one or more pages classified into a first class including pages to be transferred, to a second cache based on results of the determination performed by the page class management unit.

公开(公告)号：US20150160999A1

公开(公告)日：2015-06-11

申请号：US14413598

申请日：2013-07-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-Min Seo ,  Ju-Pyung Lee

IPC: G06F11/10 ,  G11C29/52

CPC classification number: G06F11/108 ,  G06F11/1072 ,  G06F13/385 ,  G11C29/52

Abstract: Disclosed are a solid state drive controller, a solid state drive, a data processing method of the solid state drive, a multi-channel solid state drive, a RAID controller, and a computer-readable recording medium which stores a computer program providing sequence information to the solid state drive, which are implemented using a RAID which stores a parity block in a high-endurance memory and a data block in a low-endurance memory.

Abstract translation: 公开了固态驱动控制器，固态驱动器，固态驱动器的数据处理方法，多通道固态驱动器，RAID控制器和计算机可读记录介质，其存储提供序列信息的计算机程序 使用在高耐久性存储器中存储奇偶校验块的RAID来实现的固态驱动器，以及低能量存储器中的数据块。

公开(公告)号：US11120081B2

公开(公告)日：2021-09-14

申请号：US16100990

申请日：2018-08-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ju-Pyung Lee

IPC: G06F16/84 ,  G06F16/901 ,  G06F3/06

Abstract: A key-value storage device includes a non-volatile memory and a controller. A method of operating the key-value storage device includes: receiving, from a host, information regarding at least one of a random region, comprising random bits, and a non-random region each included in a key; receiving, from the host, a first command including a first key; generating, based on the received information, a mapping index of a mapping table from first bits, the first bits corresponding to at least some of the random bits included in the first key; and controlling an operation for the non-volatile memory, according to the first command, by using the mapping table.