公开(公告)号：US20150120637A1

公开(公告)日：2015-04-30

申请号：US14488147

申请日：2014-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HYEON-SANG EOM ,  IN-SOON JO ,  MIN-YOUNG SUNG ,  MYUNG-JUNE JUNG ,  JU-PYUNG LEE

IPC: G06F9/52 ,  G06N5/02

CPC classification number: G06N5/025

Abstract: An apparatus and method for analyzing bottlenecks in a data distributed processing system. The apparatus includes a learning unit mining and learning bottleneck-feature association rules based on hardware information related to a bottleneck node, job configuration information related to a bottleneck causing job, and/or I/O information regarding a bottleneck causing task. Based on the bottleneck-feature association rules, a bottleneck cause analyzing unit detects a bottleneck node among multiple nodes performing tasks in the data distributed processing system, and analyzes the bottleneck cause.

Abstract translation: 一种用于分析数据分布式处理系统中的瓶颈的装置和方法。 该装置包括基于与瓶颈节点相关的硬件信息，与造成瓶颈的作业相关的作业配置信息和/或关于导致瓶颈的任务的I / O信息的学习单元挖掘和学习瓶颈特征关联规则。 基于瓶颈特征关联规则，瓶颈原因分析单元检测在数据分布式处理系统中执行任务的多个节点之间的瓶颈节点，并分析瓶颈原因。

公开(公告)号：US20190155959A1

公开(公告)日：2019-05-23

申请号：US16100990

申请日：2018-08-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JU-PYUNG LEE

IPC: G06F17/30 ,  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.

公开(公告)号：US20160179422A1

公开(公告)日：2016-06-23

申请号：US14962913

申请日：2015-12-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JU-PYUNG LEE

IPC: G06F3/06

CPC classification number: G06F11/10 ,  G06F11/108 ,  G06F12/0238 ,  G06F2212/214 ,  G06F2212/222 ,  G06F2212/313 ,  G06F2212/7205 ,  G06F2212/7208

Abstract: Provided are a method of performing garbage collection and a redundant array of independent disks (RAID) storage system to which the method is applied. The method includes selecting a victim stripe for performing the garbage collection in the RAID storage system based on a ratio of valid pages. Valid pages included in the victim stripe are copied to a non-volatile cache memory. Garbage collection is performed with respect to the victim stripe by using data copied to the non-volatile cache memory.

Abstract translation: 提供了执行垃圾收集的方法和应用该方法的独立盘（RAID）存储系统的冗余阵列。 该方法包括：基于有效页面的比例来选择用于在RAID存储系统中执行垃圾收集的受害者条带。 受害者条带中包含的有效页被复制到非易失性缓存中。 通过使用复制到非易失性高速缓冲存储器的数据，对受害者条带执行垃圾收集。

公开(公告)号：US20180081588A1

公开(公告)日：2018-03-22

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: G06F3/06

CPC classification number: G06F3/0652 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0688

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：US20190087352A1

公开(公告)日：2019-03-21

申请号：US15959320

申请日：2018-04-23

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： JU-PYUNG LEE ,  JOO-YOUNG HWANG

IPC: G06F12/127 ,  G06F12/1018 ,  G06F12/122 ,  G06F12/123 ,  G06F12/02 ,  G06F13/42 ,  H04L29/08

Abstract: Provided are a method and a system for transmitting data between storage devices over peer-to-peer (P2P) connections of peripheral component interconnect-express (PCIe). The method, performed when a first storage device receives a data request from a host, includes caching data of another storage device via PCIe connection in response to the data request, and transmitting the cached data to the host. The first storage device is configured to convert a logical address received with the data request to a physical address of a memory region of a second storage device, to store data transmitted from the second storage device via the PCIe connection in a second data cache according to the converted physical address, and to perform a cache replacement scheme for the data stored in the second data cache.

公开(公告)号：US20180260117A1

公开(公告)日：2018-09-13

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: G06F3/06 ,  G06F12/0862 ,  G06F12/0866

CPC classification number: G06F3/061 ,  G06F3/0656 ,  G06F3/0659 ,  G06F3/0688 ,  G06F3/0689 ,  G06F12/0862 ,  G06F12/0866 ,  G06F2212/312 ,  G06F2212/6022 ,  G06F2212/604

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：US20170024292A1

公开(公告)日：2017-01-26

申请号：US15183435

申请日：2016-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JU-PYUNG LEE ,  CHANG-MAN LEE

IPC: G06F11/16 ,  G06F12/10 ,  G06F3/06

CPC classification number: G06F11/1662 ,  G06F11/00 ,  G06F11/1435 ,  G06F12/0292 ,  G06F2201/805

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.

Abstract translation: 操作存储系统的方法包括执行向至少一个主机设备提供卷单元的存储的存储服务，其中卷包括第一卷和第二卷。 该方法包括分别向第一卷和第二卷提供低于第一优先级的第一优先级和第二优先级，并且当存储服务停止时，恢复具有第一优先级的第一卷的元数据。 该方法包括使用恢复的第一卷的元数据来启动存储服务，以及恢复具有第二优先级的第二卷的元数据。

公开(公告)号：US20150339316A1

公开(公告)日：2015-11-26

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

CPC classification number: G06F17/30159

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.

Abstract translation: 通过将数据分离成对应于第一至第N位置的多个数据块并且包括符号来执行重复数据删除，使用不同位置中的符号的频率来计算位置的识别索引; 基于鉴别指标的值排列位置的顺序; 以及基于位置的排列顺序，通过组合对应于多个位置的数据块来生成数据的指纹。

公开(公告)号：US20150339060A1

公开(公告)日：2015-11-26

申请号：US14713013

申请日：2015-05-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HYUN-JUNG SHIN ,  JU-PYUNG LEE

IPC: G06F3/06

CPC classification number: G06F3/0608 ,  G06F3/0641 ,  G06F3/0688 ,  G06F3/0689

Abstract: A storage system includes a control unit which receives data from a client, and a storage device which stores the data. The control unit includes a deduplicator which determines whether the data is duplicate or not and generates duplicate information based on the determination result. The storage device includes a mapping table that includes logical block address (LBA)-physical block address (PBA) translation information and the duplicate information.

Abstract translation: 存储系统包括从客户端接收数据的控制单元和存储数据的存储设备。 控制单元包括确定数据是否重复的重复数据删除器，并且基于确定结果生成重复信息。 存储装置包括映射表，其包括逻辑块地址（LBA） - 物理块地址（PBA）翻译信息和重复信息。

公开(公告)号：US20150154221A1

公开(公告)日：2015-06-04

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 ,  G06F11/14

CPC classification number: G06F17/30159

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.

Abstract translation: 使用数据关联信息的重复数据删除方法包括在执行复制确定之前提取关于目标文件的信息和与目标文件相关联的至少一个参考文件作为关联信息。 当执行目标文件的复制确定时，至少一个参考文件由关联信息识别为用于比较的比较对象集合。 相对于所选择的比较对象集合中的至少一个参考文件，使用目标文件执行复制确定。