公开(公告)号：US11354057B2

公开(公告)日：2022-06-07

申请号：US16276706

申请日：2019-02-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoung-Geun Kim ,  Jae-Yoon Choi ,  Joo-Young Hwang

IPC: G06F3/06 ,  G06F12/10 ,  G06F13/16

Abstract: A storage device includes a main storage including a plurality of nonvolatile memory devices, the main storage device configured to store data; and a storage controller configured to control the main storage. The storage controller is configured to, divide a plurality of memory blocks of the plurality of nonvolatile memory devices into a plurality of banks, assign each one of the plurality of banks into one of a) a plurality of sets and b) one free bank, each of the plurality of sets including at least one bank, perform data migration operation to transfer the data among the sets by using the one free bank in response to an input/output (I/O) request from an external host device while securing a specific I/O execution time, and control the data migration operation such that the I/O request is independent of the data migration operation.

公开(公告)号：US20200081647A1

公开(公告)日：2020-03-12

申请号：US16276706

申请日：2019-02-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoung-Geun Kim ,  Jae-Yoon Choi ,  Joo-Young Hwang

IPC: G06F3/06 ,  G06F13/16 ,  G06F12/10

Abstract: A storage device includes a main storage including a plurality of nonvolatile memory devices, the main storage device configured to store data; and a storage controller configured to control the main storage. The storage controller is configured to, divide a plurality of memory blocks of the plurality of nonvolatile memory devices into a plurality of banks, assign each one of the plurality of banks into one of a) a plurality of sets and b) one free bank, each of the plurality of sets including at least one bank, perform data migration operation to transfer the data among the sets by using the one free bank in response to an input/output (I/O) request from an external host device while securing a specific I/O execution time, and control the data migration operation such that the I/O request is independent of the data migration operation.

公开(公告)号：US09971799B2

公开(公告)日：2018-05-15

申请号：US14039009

申请日：2013-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae-Geuk Kim ,  Chang-Man Lee ,  Chul Lee ,  Joo-Young Hwang

IPC: G06F17/00 ,  G06F17/30

CPC classification number: G06F17/3033 ,  G06F17/30067 ,  G06F17/30109

Abstract: A storage device, a directory entry lookup method for the storage device, and a host running the method can provide a quick directory entry lookup. The host includes an interface for exchanging data with the storage device which stores a multi-level hash table comprising directory entries of each directory, and a file system module receiving a file lookup command designating a target directory and a target filename, calculating a hash value which reflects the target filename and a lookup level, and searching for a directory entry which comprises the target filename in a bucket corresponding to the hash value from among buckets at the lookup level which are included in a multi-level hash table of the target directory. If the search for the directory entry fails, the file system module increases the lookup level and again calculates the hash value and searches for the directory entry for the target filename.

公开(公告)号：US09489388B2

公开(公告)日：2016-11-08

申请号：US14038938

申请日：2013-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang-Man Lee ,  Jae-Geuk Kim ,  Chul Lee ,  Joo-Young Hwang

IPC: G06F12/00 ,  G06F17/30

CPC classification number: G06F17/30091

Abstract: A computing system includes a storage device in which file data is stored through data blocks and metadata is stored through a node block, and a file system configured to manage the file data and the metadata stored in the storage device. The node block includes data pointers respectively pointing to the data blocks, and one or more extents each indicative of data block groups which include data blocks having continuous physical addresses among the data blocks.

Abstract translation: 计算系统包括：存储装置，其中通过数据块存储文件数据，并且通过节点块存储元数据;以及文件系统，被配置为管理存储在存储装置中的文件数据和元数据。 节点块包括分别指向数据块的数据指针，以及每个指示包括数据块中具有连续物理地址的数据块的数据块组的一个或多个扩展区。

公开(公告)号：US09069673B2

公开(公告)日：2015-06-30

申请号：US14038917

申请日：2013-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae-Geuk Kim ,  Chang-Man Lee ,  Chul Lee ,  Joo-Young Hwang

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F12/08

CPC classification number: G06F12/0815 ,  G06F12/0804 ,  G06F12/0871

Abstract: A host configured to interact with a storage device includes a write-back (WB) cache configured to write data to the storage device, a cache managing module configured to manage the WB cache, and a file system module configured to determine whether live blocks in victim segments among a plurality of segments stored in the storage device are stored in the WB cache, to read the live blocks from the storage device as a consequence of determining that the live blocks are not stored in the WB cache, to load the read live blocks to the WB cache, and to request the cache managing module to set dirty flags for the stored live blocks.

Abstract translation: 被配置为与存储设备交互的主机包括被配置为向存储设备写入数据的回写（WB）缓存，被配置为管理WB高速缓存的高速缓存管理模块以及被配置为确定是否存在 存储在存储设备中的多个段中的受害者段被存储在WB高速缓存中，以便作为确定实时块未被存储在WB高速缓存中的结果来从存储设备读取实时块，以加载所读取的实况 块到WB缓存，并请求缓存管理模块为存储的实时块设置脏标志。

公开(公告)号：US08923043B2

公开(公告)日：2014-12-30

申请号：US13762737

申请日：2013-02-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yang-Woo Roh ,  Chul Lee ,  Sang-Hoan Chang ,  Jae-Soo Lee ,  Joo-Young Hwang

IPC: G11C11/00 ,  G11C7/00 ,  G11C13/00 ,  G11C7/14

CPC classification number: G11C13/0004 ,  G11C7/14 ,  G11C13/004 ,  G11C13/0061 ,  G11C2013/0078 ,  G11C2213/72

Abstract: A memory device may include a normal cell which is configured to be programmed to a first resistance and stabilized as a resistance of the normal cell drifts from the first resistance to a second resistance; a flag cell which is configured to be programmed to a third resistance smaller than the first resistance and stabilized as a resistance of the flag cell drifts from the third resistance to a fourth resistance smaller than the second resistance; and a decision circuit which is configured to decide whether the flag cell has been stabilized in order to determine whether the normal cell has been stabilized.

Abstract translation: 存储器件可以包括正常单元，其被配置为被编程为第一电阻并且随着正常单元的电阻从第一电阻漂移到第二电阻而稳定; 被配置为被编程为小于所述第一电阻的第三电阻并且随着所述标志单元的电阻从所述第三电阻漂移到小于所述第二电阻的第四电阻而稳定的标志单元; 以及判定电路，其被配置为判定标志单元是否已经稳定以便确定正常单元是否已经稳定。

公开(公告)号：US11341043B2

公开(公告)日：2022-05-24

申请号：US16543093

申请日：2019-08-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byoung-Geun Kim ,  In-Hwan Doh ,  Joo-Young Hwang ,  Seung-Uk Shin ,  Min-Seok Ko ,  Jae-Yoon Choi

IPC: G06F12/02 ,  G06F9/38 ,  G06F12/10

Abstract: A storage device includes a non-volatile memory including a plurality of memory blocks. The storage device performs an alignment operation in response to receipt of an align command. The alignment operation converts a received logical address of a logical segment into a physical address and allocates the physical address to a physical block address corresponding to a free block. The storage device is further configured to performs a garbage collection in units of the physical block address that indicates one memory block.

公开(公告)号：US11216383B2

公开(公告)日：2022-01-04

申请号：US16291402

申请日：2019-03-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duck-Ho Bae ,  Dong-Uk Kim ,  Hyung-Woo Ryu ,  Kwang-Hyun La ,  Joo-Young Hwang ,  You-Ra Choi

IPC: G06F12/1009 ,  G06F12/10 ,  G06F12/0871 ,  G06F12/0868 ,  G06F12/0804 ,  G06F12/08 ,  G06F12/02

Abstract: An electronic system includes a host device and a storage device including a first memory device of a volatile type and a second memory device of a nonvolatile type. The first memory device is accessed by the host device through a memory-mapped input-output interface and the second memory device is accessed by the host device through a block accessible interface. The storage device provides a virtual memory region to the host device such that a host-dedicated memory region having a first size included in the first memory device is mapped to the virtual memory region having a second size larger than the first size.

公开(公告)号：US10896126B2

公开(公告)日：2021-01-19

申请号：US16445491

申请日：2019-06-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-Hui Kim ,  Jung-Min Seo ,  Hyeon-Gyu Min ,  Seung-Jun Yang ,  Joo-Young Hwang

IPC: G06N3/08 ,  G06F12/121 ,  G06F12/02

Abstract: Garbage collection is performed according to an estimated number of valid pages. A storage device estimates a valid page count at a future time based on a valid page count at each of past time steps and a present time step using a neural network model and selects a victim block that undergoes the garbage collection from memory blocks based on an estimated valid page count. A memory block having a lowest estimated valid page count or having an estimated valid page count having a maintaining tendency is selected as the victim block or a memory block having the estimated valid page count having a decreasing tendency is excluded from selecting the victim block.

公开(公告)号：US20200159656A1

公开(公告)日：2020-05-21

申请号：US16543093

申请日：2019-08-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoung-Geun Kim ,  In-Hwan Doh ,  Joo-Young Hwang ,  Seung-Uk Shin ,  Min-Seok Ko ,  Jae-Yoon Choi

IPC: G06F12/02 ,  G06F9/38 ,  G06F12/10

Abstract: A storage device includes a non-volatile memory including a plurality of memory blocks. The storage device performs an alignment operation in response to receipt of an align command. The alignment operation converts a received logical address of a logical segment into a physical address and allocates the physical address to a physical block address corresponding to a free block. The storage device is further configured to performs a garbage collection in units of the physical block address that indicates one memory block.