公开(公告)号：US20140095555A1

公开(公告)日：2014-04-03

申请号：US14038891

申请日：2013-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JAE-GEUK KIM ,  CHANG-MAN LEE ,  CHUL LEE ,  JOO-YOUNG HWANG

IPC: G06F17/30

CPC classification number: G06F16/1847 ,  G06F16/188

Abstract: A file management device for a storage system includes a virtual file system (VFS) having a read-ahead (RA) management unit that stores RA management information and generates a first read request, and a file system that receives first read data in response to the first read request and second read data in response to a previously received read request, compares the first and second read data to generate varying information related to the RA management information, and provides the varying information to the VFS, wherein the VFS updates the RA management information in response to the varying information.

Abstract translation: 用于存储系统的文件管理装置包括具有存储RA管理信息并生成第一读请求的预读（RA）管理单元的虚拟文件系统（VFS），以及响应于 响应于先前接收到的读取请求的第一读取请求和第二读取数据，比较第一和第二读取数据以生成与RA管理信息相关的变化信息，并向VFS提供变化的信息，其中VFS更新RA 响应不同信息的管理信息。

公开(公告)号：US20140095772A1

公开(公告)日：2014-04-03

申请号：US14039042

申请日：2013-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： CHUL LEE ,  JAE-GEUK KIM ,  CHANG-MAN LEE ,  JOO-YOUNG HWANG

IPC: G06F12/02

CPC classification number: G06F12/0246 ,  G06F3/061 ,  G06F3/0643 ,  G06F3/0679 ,  G06F2212/2022 ,  G06F2212/7202

Abstract: A computing system a storage device and a file system. The storage device includes a storage area having flash memory. The file system is configured to divide the storage area into multiple zones, multiple sections and multiple blocks, and to write a log in each block. The file system includes a block allocation module. The block allocation module is configured to allocate a target block, in which a log is to be written, by a continuous block allocation method according to which a block having a continuous address with a most recently selected block is set as the target block. The block allocation module is further configured to find a free section from the multiple sections when it is not possible to allocate the target block by the continuous block allocation method, and to set a block in the found free section as the target block.

Abstract translation: 计算系统存储设备和文件系统。 存储装置包括具有闪速存储器的存储区域。 文件系统配置为将存储区域划分为多个区域，多个区段和多个块，并在每个块中写入日志。 文件系统包括块分配模块。 块分配模块被配置为通过连续块分配方法来分配其中要写入日志的目标块，根据该块分配方法将具有最近选择的块的连续地址的块设置为目标块。 块分配模块还被配置为当不可能通过连续块分配方法分配目标块并且将找到的空闲部分中的块设置为目标块时，从多个部分中找到空闲部分。

公开(公告)号：US20140095558A1

公开(公告)日：2014-04-03

申请号：US14038884

申请日：2013-09-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： CHUL LEE ,  JAE-GEUK KIM ,  CHANG-MAN LEE ,  JOO-YOUNG HWANG

IPC: G06F17/30

CPC classification number: G06F16/182 ,  G06F16/188

Abstract: A computing system includes a virtual file system and a file system. The virtual file system is configured to provide a first data request to read first file data. The file system is configured to receive the first data request, to read first metadata and second metadata from a storage device in response to the first data request, and then to read first file data corresponding to the first metadata and second file data corresponding to the second metadata from the storage device.

Abstract translation: 计算系统包括虚拟文件系统和文件系统。 虚拟文件系统被配置为提供读取第一文件数据的第一数据请求。 文件系统被配置为接收第一数据请求，以响应于第一数据请求从存储设备读取第一元数据和第二元数据，然后读取对应于第一元数据的第一文件数据和对应于第一数据请求的第二文件数据 来自存储设备的第二个元数据。

公开(公告)号：US20140095771A1

公开(公告)日：2014-04-03

申请号：US14038989

申请日：2013-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： CHANG-MAN LEE ,  JAE-GEUK KIM ,  CHUL LEE ,  JOO-YOUNG HWANG

IPC: G06F12/08

CPC classification number: G06F12/0817 ,  G06F12/0804 ,  G06F12/0866 ,  G06F12/0891 ,  G06F2212/466

Abstract: A computing system includes a storage device, and a host device configured to flush a plurality of pages to the storage device. The host device includes a write-back (WB) cache configured to store the pages, and a file system module configured to flush pages having first characteristics to the storage device from among the pages stored in the WB cache, and then flush pages having second characteristics which are different from the first characteristics to the storage device from among the pages stored in the WB cache.

Abstract translation: 计算系统包括存储设备和被配置为将多个页面刷新到存储设备的主机设备。 所述主机设备包括被配置为存储所述页面的回写（WB）缓存，以及文件系统模块，被配置为从存储在所述WB高速缓冲存储器中的所述页面中的所述存储设备中将具有第一特征的页面进行刷新，然后刷新具有第二特征的页面 从存储在WB高速缓存中的页面中到与存储设备不同的特性。

公开(公告)号：US20140095458A1

公开(公告)日：2014-04-03

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: G06F17/30

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.

Abstract translation: 存储设备，用于存储设备的目录条目查找方法以及运行该方法的主机可以提供快速的目录条目查找。 主机包括用于与存储设备交换数据的接口，存储包括每个目录的目录条目的多级散列表，以及文件系统模块，接收指定目标目录和目标文件名的文件查找命令，计算哈希值 其反映目标文件名和查找级别，并且搜索目录条目，该目录条目包括与查找级别中的哈希值对应的桶中的目标文件名，该目录文件名包括在目标目录的多级哈希表中 。 如果搜索目录条目失败，则文件系统模块会增加查找级别，并再次计算哈希值，并搜索目标文件名的目录条目。

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：US20140095803A1

公开(公告)日：2014-04-03

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: G06F12/08

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

Abstract: A host configured to interact with a storage device comprises 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）高速缓存，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块 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：US20140095552A1

公开(公告)日：2014-04-03

申请号：US14033596

申请日：2013-09-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JOO-YOUNG HWANG ,  CHUL LEE ,  JAE-GEUK KIM ,  CHANG-MAN LEE

IPC: G06F17/30

CPC classification number: G06F17/30091 ,  G06F17/30233

Abstract: A data management method of a computing system includes dividing a storage device into a first area and a second area, storing data and nodes related to the data in the second area, and storing a node address table in the first area. The node address table includes node identifiers corresponding to the nodes and physical addresses corresponding to the node identifiers.

Abstract translation: 计算系统的数据管理方法包括将存储设备划分为第一区域和第二区域，将与数据相关的数据和节点存储在第二区域中，并将节点地址表存储在第一区域中。 节点地址表包括对应于节点的节点标识符和对应于节点标识符的物理地址。