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1. 发明授权

US10977124B2 Distributed storage system, data storage method, and software program 有权
公开(公告)号：US10977124B2
公开(公告)日：2021-04-13
申请号：US15762862
申请日：2016-01-07
申请人： HITACHI, LTD.
发明人： Mitsuo Hayasaka , Keiichi Matsuzawa
IPC分类号： G06F11/00 , G06F11/10 , G06F3/06
摘要： A distributed storage system includes a plurality of storage nodes including: a storage device for storing data in such a way that the data can be written thereto and read therefrom; a memory in which a software program is recorded; and a CPU for executing the software program. The memory stores group management information in which a group configured with a plurality of storage nodes and the storage nodes that configure the group are associated with each other and recorded. The CPU converts data into a plurality of data blocks so that the data is redundant at a predetermined data protection level, and stores the data blocks into each of a plurality of storage nodes belonging to the same group based on the group management information.

2. 发明授权

US09146694B2 Distribution processing unit of shared storage 有权
标题翻译：共享存储分配处理单元
公开(公告)号：US09146694B2
公开(公告)日：2015-09-29
申请号：US13695745
申请日：2012-10-18
申请人： Hitachi, Ltd.
发明人： Keiichi Matsuzawa , Akira Yamamoto
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G06F17/30 , G06F3/06 , G06F15/167 , G06F15/16
CPC分类号： G06F3/067 , G06F3/0607 , G06F3/0631 , G06F15/167 , G06F17/30203
摘要： When processing data via multiple computers, the number of computers can be increased or decreased without actually moving the data assigned to the respective computers, and the data can be arranged and processed so as to enhance the performance of the system in response to the increase of the number of computers. A plurality of computers for performing data processing stores target data to be processed in a shared storage system, and when data processing is to performed, the shared storage divides the storage area storing data corresponding to the number of computers, and creates virtual data storage areas referring to a portion of the storage area for each computer, so as to enable each computer to refer to independent virtual data storage areas and to complete data processing.
摘要翻译：当通过多台计算机处理数据时，可以增加或减少计算机的数量，而不会实际移动分配给各个计算机的数据，并且可以对数据进行排列和处理，以便响应于增加系统的性能而增强系统的性能电脑数量。用于执行数据处理的多个计算机存储在共享存储系统中要处理的目标数据，并且当执行数据处理时，共享存储器分割存储对应于计算机数量的数据的存储区域，并且创建虚拟数据存储区域参考每个计算机的存储区域的一部分，以使每个计算机能够引用独立的虚拟数据存储区域并完成数据处理。

3. 发明授权

US10936243B2 Storage system and data transfer control method 有权
公开(公告)号：US10936243B2
公开(公告)日：2021-03-02
申请号：US16491520
申请日：2017-08-03
申请人： Hitachi, Ltd.
发明人： Akiyoshi Tsuchiya , Keiichi Matsuzawa , Mitsuo Hayasaka , Akira Yamamoto
IPC分类号： G06F3/06
摘要： When a second storage device in a second site receives an update notification regarding a first element updated according to a write request from a first host, from a first storage device in a first site, for a second element specified on the basis of the update notification, the second storage device manages data of the first element corresponding to the second element as latest data. The first storage device provides a first volume capable of including a plurality of first elements. The second storage device provides a second volume capable of including a plurality of second elements corresponding to the plurality of first elements. When the second storage device receives a read request from a second host, the second storage device determines whether or not data of the first element corresponding to a read source second element (second element specified from the read request) is the latest data. When a determination result is true, the second storage device acquires the latest data from the first storage device and returns the latest data to the second host.

4. 发明授权

US10235282B2 Computer system, computer, and method to manage allocation of virtual and physical memory areas 有权
公开(公告)号：US10235282B2
公开(公告)日：2019-03-19
申请号：US15544529
申请日：2015-06-01
申请人： Hitachi, Ltd.
发明人： Keiichi Matsuzawa , Hitoshi Kamei
IPC分类号： G06F12/00 , G06F12/02 , G06F12/10 , G06F12/06 , G06F12/0871 , G06F12/109 , G06F13/00 , G06F13/28
摘要： An allocation request for requesting allocation of a target virtual area with respect to target data issued to a system program includes a target ID corresponding to the target data. In response to the allocation request, whether or not the target ID is included in data map information is determined. When it is included in the data map information, the system program determines whether or not a target physical area is included in a storage apparatus. When the target physical area is included in the storage apparatus, the system program reserves a free area in a non-volatile memory as a target memory area, copies target data stored in the storage apparatus to the target memory area, changes the target physical area in the data map information to the target memory area, and writes an association between the target virtual area and the target memory area into the volatile memory.

5. 发明授权

US10210035B2 Computer system and memory dump method 有权
公开(公告)号：US10210035B2
公开(公告)日：2019-02-19
申请号：US15506295
申请日：2014-10-08
申请人： Hitachi, Ltd.
发明人： Keiichi Matsuzawa , Noboru Morishita , Toshiomi Moriki
IPC分类号： G06F11/00 , G06F11/07 , G06F9/46
摘要： A computer system, having: a physical computer, which includes a processor and a memory; and an external apparatus, which is coupled to the physical computer and which includes a storage apparatus, the physical computer further includes: a virtualization module for providing at least one virtual machine; a first failure monitoring module for detecting a failure in the physical computer and the virtualization module; a first memory dump module for copying, to the external apparatus, a first area in the memory which is allocated to the virtualization module; a second failure monitoring module for detecting a failure in the virtual machine; and a second memory dump module for copying, to the external apparatus, a second area in the memory which is allocated by the virtualization module to the virtual machine.

6. 发明授权

US09766824B2 Storage device and computer system 有权
公开(公告)号：US09766824B2
公开(公告)日：2017-09-19
申请号：US14767066
申请日：2013-11-26
申请人： Hitachi, Ltd.
发明人： Keiichi Matsuzawa , Hitoshi Kamei
IPC分类号： G06F3/06 , G06F12/0802 , G06F12/084 , G06F12/0866 , G06F9/455
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0655 , G06F3/0665 , G06F3/067 , G06F3/0689 , G06F9/45558 , G06F12/0802 , G06F12/084 , G06F12/0866 , G06F2009/45562 , G06F2009/4557 , G06F2009/45583 , G06F2212/224 , G06F2212/284 , G06F2212/285
摘要： When computers and virtual machines operating in the computers both attempt to allocate a cache regarding the data in a secondary storage device to respective primary storage devices, identical data is prevented from being stored independently in multiple computers or virtual machines. An integrated cache management function in the computer arbitrates which computer or virtual machine should cache the data of the secondary storage device, and when the computer or the virtual machine executes input/output of data of the secondary storage device, the computer inquires the integrated cache management function, based on which the integrated cache management function retains the cache only in a single computer, and instructs the other computers to delete the cache. Thus, it is possible to prevent identical data from being cached in a duplicated manner in multiple locations of the primary storage device, and enables efficient capacity usage of the primary storage device.

7. 发明授权

US10649691B2 Storage system 有权
公开(公告)号：US10649691B2
公开(公告)日：2020-05-12
申请号：US15122310
申请日：2014-03-27
申请人： HITACHI, LTD.
发明人： Mitsuo Hayasaka , Ken Nomura , Keiichi Matsuzawa , Hitoshi Kamei
IPC分类号： G06F3/06 , G06F12/0871 , G06F12/0804
摘要： An example of storage system obtains a reference request of a reference request data block that is included in the content and is stored in the medium area. The storage system determines a number of gaps among addresses, in the medium area, of a plurality of data blocks continuous in the content including the reference request data block. The storage system determines, based on the number of gaps, whether or not defrag based on the plurality of data blocks is valid. The storage system writes, when the defrag is determined to be valid, the plurality of data blocks read from the medium area to the memory area, into continuous address areas of the medium area.

8. 发明授权

US10606499B2 Computer system, storage apparatus, and method of managing data 有权
公开(公告)号：US10606499B2
公开(公告)日：2020-03-31
申请号：US15755317
申请日：2015-09-11
申请人： HITACHI, LTD.
发明人： Mitsuo Hayasaka , Keiichi Matsuzawa
IPC分类号： G06F16/00 , G06F3/06 , H03M7/30
摘要： It is provided a computer system comprising at least one storage apparatus and a computer, wherein the each of the at least one storage apparatus is configured to manage identification information indicating specifics of the stored data, and wherein the computer determines whether the data to be written to the one of the at least one storage apparatus has duplicate data, which is the same data already stored in any one of the at least one storage apparatus, transmits deduplicated data, and uses at least one of individual pieces of identification information or a range of pieces of identification information, depending on how many pieces of identification information appear in succession, to request the information indicating whether the data that is associated with the calculated identification information is stored from the one of the at least one storage apparatus.

9. 发明授权

US09229860B2 Storage system 有权
标题翻译：存储系统
公开(公告)号：US09229860B2
公开(公告)日：2016-01-05
申请号：US14423921
申请日：2014-03-26
申请人： Hitachi, Ltd.
发明人： Keiichi Matsuzawa , Hitoshi Kamei , Mitsuo Hayasaka
IPC分类号： G06F12/00 , G06F12/06 , G06F3/06 , G06F12/02 , G06F17/30
CPC分类号： G06F12/0646 , G06F3/0608 , G06F3/0617 , G06F3/064 , G06F3/0644 , G06F3/0673 , G06F3/0683 , G06F12/0292 , G06F17/30082 , G06F17/30138 , G06F17/30233 , G06F2212/1044 , G06F2212/152 , G06F2212/657
摘要： In the present invention, when configuration data art a LFS (Log-Structured File system) is stored on a virtual volume constructed from a plurality of Storage mediums, a temporal change of the file size on the file system is roughly estimated. Then, in accordance with the change, a capacity that is needed on the virtual volume is provided, a cursor at the end of a log is set, and a write cursor for writing data is set so as to avoid the position behind the cursor at the end of the log. Accordingly, it is possible to, when the LFS occupies only a small area on the virtual volume, avoid early execution of the allocation of an available capacity, and thus avoid a circumstance in which a large number of storage mediums are needed at an early stage of the operation of the virtual volume (see FIG. 1).
摘要翻译：在本发明中，当在由多个存储介质构成的虚拟卷上存储有LFS（Log-Structured File System）的配置数据时，粗略地估计文件系统上的文件大小的时间变化。然后，根据该变更，提供虚拟卷上所需的容量，设置日志结束处的光标，并且设置用于写入数据的写入光标，以避免光标后面的位置日志结束。因此，当LFS在虚拟卷上仅占用小面积时，可以避免早期执行可用容量的分配，从而避免在早期阶段需要大量存储介质的情况的虚拟卷的操作（参见图1）。

10. 发明申请

US20140115019A1 DISTRIBUTION PROCESSING UNIT OF SHARED STORAGE 有权
标题翻译：分销处理单位共享存储
公开(公告)号：US20140115019A1
公开(公告)日：2014-04-24
申请号：US13695745
申请日：2012-10-18
申请人： Hitachi, Ltd.
发明人： Keiichi Matsuzawa , Akira Yamamoto
IPC分类号： G06F3/06
CPC分类号： G06F3/067 , G06F3/0607 , G06F3/0631 , G06F15/167 , G06F17/30203
摘要： When processing data via multiple computers, the number of computers can be increased or decreased without actually moving the data assigned to the respective computers, and the data can be arranged and processed so as to enhance the performance of the system in response to the increase of the number of computers. A plurality of computers for performing data processing stores target data to be processed in a shared storage system, and when data processing is to performed, the shared storage divides the storage area storing data corresponding to the number of computers, and creates virtual data storage areas referring to a portion of the storage area for each computer, so as to enable each computer to refer to independent virtual data storage areas and to complete data processing.
摘要翻译：当通过多台计算机处理数据时，可以增加或减少计算机的数量，而不会实际移动分配给各个计算机的数据，并且可以对数据进行排列和处理，以便响应于增加系统的性能而增强系统的性能电脑数量。用于执行数据处理的多个计算机存储在共享存储系统中要处理的目标数据，并且当执行数据处理时，共享存储器分割存储对应于计算机数量的数据的存储区域，并且创建虚拟数据存储区域参考每个计算机的存储区域的一部分，以使每个计算机能够引用独立的虚拟数据存储区域并完成数据处理。

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