Patents by Inventor Akira Deguchi

Akira Deguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210294497
    Abstract: A storage system includes a plurality of storage systems and an analysis server. The analysis server analyzes and outputs an information of a storage system to another storage system based on information of the storage system and information of the other storage system which cooperates with the storage system.
    Type: Application
    Filed: September 10, 2020
    Publication date: September 23, 2021
    Applicant: HITACHI, LTD.
    Inventors: Akira DEGUCHI, Kiyomi WADA
  • Publication number: 20210272917
    Abstract: In a method of manufacturing a semiconductor device according to one embodiment, after a semiconductor wafer including a non-volatile memory, a bonding pad and an insulating film comprised of an organic material is provided, a probe needle is contacted to a surface of the bonding pad located in a second region, and a data is written to the non-volatile memory. Here, the insulating film is formed by performing a first heat treatment to the organic material. Also, after a second heat treatment is performed to the semiconductor wafer, and the non-volatile memory to which the data is written is checked, a barrier layer and a first solder material are formed on the surface of the bonding pad located in a first region by using an electroplating method. Further, a bump electrode is formed in the first region by performing a third heat treatment to the first solder material.
    Type: Application
    Filed: January 14, 2021
    Publication date: September 2, 2021
    Inventors: Yoshiaki SATO, Mitsunobu WANSAWA, Akira MATSUMOTO, Yoshinori DEGUCHI, Kentaro SAITO
  • Publication number: 20210240351
    Abstract: A first storage system that provides a primary site and a second storage system that provides a secondary site are provided to quickly and easily switch between the storage systems. A storage controller of the storage system performs remote copy from a first data volume of the first storage system to a second data volume of the second storage system, after a failover is performed from the primary site to the secondary site, accumulates data and operation that are processed at the secondary site in a journal volume of the second storage system as a secondary site journal, and restores the first data volume using the secondary site journal when the primary site is recovered.
    Type: Application
    Filed: September 8, 2020
    Publication date: August 5, 2021
    Applicant: HITACHI, LTD.
    Inventors: Nobuhiro YOKOI, Tomohiro KAWAGUCHI, Akira DEGUCHI
  • Patent number: 11079956
    Abstract: A storage system includes a plurality of physical drives and a storage controller connected to the plurality of physical drives to provide one or more volumes. Two or more volume addresses, which are two or more logical addresses, belong to each of the one or more volumes. When copy target data, which is data to be copied, is copied in a volume or between volumes, the storage controller (A) determines whether a copy destination physical drive, which is a physical drive corresponding to a copy destination volume address, is identical to a copy source physical drive which is the destination physical drive corresponding to a copy source volume address, and (B) shifts a storage position of the copy target data such that the copy destination physical drive becomes a physical drive identical to the copy source physical drive if a determination result of (A) is false.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: August 3, 2021
    Assignee: HITACHI, LTD.
    Inventors: Akira Deguchi, Tomohiro Kawaguchi
  • Publication number: 20210173563
    Abstract: In a storage system having a controller constructing a provision volume provided to a server system and an addition volume in which data to be stored in the provision volume is added and stored, when a provision volume copying instruction is received, the controller inserts a start marker indicating start time point of copying into address change history information and copies address conversion information of a provision volume while receiving update data to a provision volume from the server system, as address conversion information of a copy-destination volume. On the basis of a start marker of address change history information and history information, a change from start to completion of copying of the address conversion information of a copy-destination volume is reset to a state at the start time point of copying.
    Type: Application
    Filed: August 25, 2020
    Publication date: June 10, 2021
    Inventors: Yusuke YAMAGA, Tomohiro KAWAGUCHI, Akira DEGUCHI, Takaki MATSUSHITA, Tadato NISHINA
  • Patent number: 10963485
    Abstract: The operational performance and the I/O performance of Snapshots in a storage system are balanced. In a storage system, meta information of data appended to a log structured area is composed of meta information of a first tier and meta information of a second tier which correlate location information of data in a logical volume and location information of data in the log structured area. When creating a snapshot of the logical volume, a data management unit creates, in the same meta information area as a replication source, a replication of the meta information of the first tier stored in a plurality of meta information areas assigned to a plurality of controllers. A data control unit accesses the data of the log structured area from the logical volume, and accesses the data of the log structured area from the snapshot.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: March 30, 2021
    Assignee: HITACHI, LTD.
    Inventors: Takaki Matsushita, Yusuke Yamaga, Akira Deguchi
  • Publication number: 20210064638
    Abstract: A first storage system of a remote copy system includes a data volume, a journal volume, and a storage controller. When an operation is received from a first server system, based on the operation, the storage controller executes any of a work of storing the update content by the operation in the journal volume or a work of executing the operation when the operation is received.
    Type: Application
    Filed: March 2, 2020
    Publication date: March 4, 2021
    Applicant: HITACHI, LTD.
    Inventors: Ai SATOYAMA, Akira DEGUCHI
  • Publication number: 20210034268
    Abstract: In a storage system, attributes of nodes are specified as first attribute nodes and second attribute nodes, the I/O processing in the nodes is executed as a plurality of processes including front-end I/O processing executed by any of the first attribute nodes and back-end I/O processing executed by the first and second attribute nodes having a storage device that stores data relating to the I/O processing.
    Type: Application
    Filed: March 5, 2020
    Publication date: February 4, 2021
    Applicant: HITACHI, LTD.
    Inventors: Akihiro HARA, Norio SHIMOZONO, Tomohiro KAWAGUCHI, Akira DEGUCHI
  • Publication number: 20200393987
    Abstract: A storage system and storage control method are provided in which a plurality of volumes to be processed by a storage control unit are distributed and evacuated in a normal storage control unit without recovering redundancy of the storage control unit having decreased redundancy, and the storage control unit itself having the decreased redundancy is deleted after the evacuating is completed, and thus reservation information processing resources for guaranteeing recoverability of the redundancy become unnecessary.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Inventors: Kenta SATO, Akira DEGUCHI, Tomohiro KAWAGUCHI
  • Patent number: 10776035
    Abstract: A storage system and storage control method are provided in which a plurality of volumes to be processed by a storage control unit are distributed and evacuated in a normal storage control unit without recovering redundancy of the storage control unit having decreased redundancy, and the storage control unit itself having the decreased redundancy is deleted after the evacuating is completed, and thus reservation information processing resources for guaranteeing recoverability of the redundancy become unnecessary.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 15, 2020
    Assignee: HITACHI, LTD.
    Inventors: Kenta Sato, Akira Deguchi, Tomohiro Kawaguchi
  • Patent number: 10762021
    Abstract: An information system connected to hosts and an information processing system manages a second ALU connected to the hosts via a second logical path, and second SLUs for receiving I/O requests from the hosts via the second logical path. A processor manages a first ALU connected to the hosts via a first logical path and first SLUs that receive I/O requests from the hosts via the first logical path, and builds up a first group including the first SLUs. A first SLU and a second SLU compose an HA pair, and the HA pair is provided to the hosts as one volume. The processor evaluates the state of the first logical path based on the pair state of the first SLU that composes the HA pair included in the first group so priorities with which the hosts issue I/Os to the first logical path can be determined.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: September 1, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Hirotaka Nakagawa, Akira Deguchi, Hiroshi Nasu, Tomohiro Kawaguchi
  • Patent number: 10761767
    Abstract: A computer system includes a management computer, a first storage apparatus, and a second storage apparatus. A first logical device of the first storage apparatus and a second logical device of the second storage apparatus constitute a remote copy pair. The second logical device and a third logical device of the second storage apparatus constitute a copy pair. The second logical device and the third logical device have virtual IDs to be recognized by an issuer of an I/O request. The second storage apparatus interchanges the virtual IDs of the third logical device and the second logical device with reception of a command from the management computer as a trigger during processing of the I/O request from the issuer of the I/O request to the third logical device, thereby switching an access destination of the issuer of the I/O request from the third logical device to the second logical device.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: September 1, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Azusa Jin, Akira Deguchi, Tomohiro Kawaguchi, Hirotaka Nakagawa, Hiroshi Nasu
  • Publication number: 20200117381
    Abstract: In a multi-node storage system, a node's capacity has an upper limit, and capacities provided by nodes are smaller than a capacity of a global pool. A volume having a capacity larger than the capacity of one node is created by the node. A write error occurs when an amount of data larger than the capacity of the node is written. A storage system reduces the frequency of such a write error. A global pool is based on a plurality of local pools of a plurality of storage nodes that constitute a node group. In any of the storage nodes, a capacity relationship is maintained where a used capacity of a volume created by the storage node is equal to or less than an available capacity of a local pool of the storage node. A storage management unit manages the node group and selects the storage node.
    Type: Application
    Filed: September 12, 2019
    Publication date: April 16, 2020
    Applicant: HITACHI, LTD.
    Inventors: Akira DEGUCHI, Hirotaka NAKAGAWA
  • Publication number: 20200097204
    Abstract: According to one embodiment, a storage control method is provided in which a plurality of volumes to be processed by a storage control unit are distributed and evacuated in a normal storage control unit without recovering redundancy of the storage control unit having decreased redundancy, and the storage control unit itself having the decreased redundancy is deleted after the evacuating is completed, and thus reservation information processing resources for guaranteeing recoverability of the redundancy become unnecessary and use efficiency of a physical server is improved.
    Type: Application
    Filed: March 6, 2019
    Publication date: March 26, 2020
    Inventors: Kenta SATO, Akira DEGUCHI, Tomohiro KAWAGUCHI
  • Publication number: 20200073572
    Abstract: A storage system includes a plurality of physical drives and a storage controller connected to the plurality of physical drives to provide one or more volumes. Two or more volume addresses, which are two or more logical addresses, belong to each of the one or more volumes. When copy target data, which is data to be copied, is copied in a volume or between volumes, the storage controller (A) determines whether a copy destination physical drive, which is a physical drive corresponding to a copy destination volume address, is identical to a copy source physical drive which is the destination physical drive corresponding to a copy source volume address, and (B) shifts a storage position of the copy target data such that the copy destination physical drive becomes a physical drive identical to the copy source physical drive if a determination result of (A) is false.
    Type: Application
    Filed: August 3, 2017
    Publication date: March 5, 2020
    Inventors: Akira DEGUCHI, Tomohiro KAWAGUCHI
  • Patent number: 10572175
    Abstract: A computer system is coupled to a first storage system in a first site and a second storage system in a second site. The computer system comprises: a memory configured to store information which indicates that data in each segment of a plurality of segments of a logical unit is stored in the first storage system or the second storage system; and a processor configured to: receive an instruction to deploy an application, the instruction including access characteristic of the application; and determine if a snapshot of the logical volume is to be created either in the first storage system or the second storage system based on the access characteristic of the application and the information stored in the memory.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: February 25, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Akio Nakajima, Akira Deguchi
  • Patent number: 10496294
    Abstract: An instruction to associate a second logical volume with a second virtual storage, which is a migration destination of a first virtual storage that provides a first logical volume, is transmitted. The first virtual storage is a virtual storage to which a virtual resource provided by a virtual managing unit is allocated. A copy instruction, which is an instruction to copy data from either one of the first logical volume and a copy source logical volume of the first logical volume to the second logical volume is transmitted. When copy completion, which is completion of the data copy to the second logical volume, is detected, an erasing instruction, which is an instruction to erase the first virtual storage, is transmitted to the virtual managing unit.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: December 3, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Miho Imazaki, Masakuni Agetsuma, Akira Yamamoto, Akira Deguchi
  • Publication number: 20190310777
    Abstract: Saving a capacity of an on-premises storage apparatus, a high access performance of the on-premises storage apparatus, and resuming an operation quickly and accurately by using data on a cloud when a resource in the on-premises fails are achieved. A processor provides a first volume which is a virtual volume, and configures a copy pair of the first volume and a second volume provided from another storage system. Write data to the first volume is transferred to the second volume via a network, based on the copy pair. The processor writes to the memory a part of data written to the second volume, and writes to the storage device the data written to the memory.
    Type: Application
    Filed: June 6, 2019
    Publication date: October 10, 2019
    Inventors: Akira DEGUCHI, Tomohiro KAWAGUCHI
  • Patent number: 10353592
    Abstract: Saving a capacity of an on-premises storage apparatus, a high access performance of the on-premises storage apparatus, and resuming an operation quickly and accurately by using data on a cloud when a resource in the on-premises fails are achieved. A processor provides a first volume which is a virtual volume, and configures a copy pair of the first volume and a second volume provided from another storage system. Write data to the first volume is transferred to the second volume via a network, based on the copy pair. The processor writes to the memory a part of data written to the second volume, and writes to the storage device the data written to the memory.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 16, 2019
    Assignee: HITACHI, LTD.
    Inventors: Akira Deguchi, Tomohiro Kawaguchi
  • Publication number: 20190205044
    Abstract: A method for restoring lost data due to a failure of a storage drive is provided, including: selecting a first logical area of a first storage drive that is failed; specifying a first logical area line that includes the first logical area and logical area blocks of a different storage drive and stores a data set having a redundant configuration capable of restoring lost internal data; selecting, from the first logical area line, one or more second logical areas to be accessed for restoring data of the first logical area; and for each of one or more second storage drives that provides the one or more second logical areas respectively, issuing a data storage information request inquiring whether valid data is stored after designating the second logical areas.
    Type: Application
    Filed: January 10, 2017
    Publication date: July 4, 2019
    Applicant: HITACHI, LTD.
    Inventors: Tomohiro KAWAGUCHI, Ai SATOYAMA, Kazuei HIRONAKA, Akira DEGUCHI