Patents by Inventor Noriyuki Yasu

Noriyuki Yasu 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).

  • Patent number: 10809997
    Abstract: In an information processing apparatus, an execution unit executes a first program and a second program. While the information processing apparatus acts as a slave that performs a program update process in response to instructions from a different information processing apparatus, an update control unit updates the first program to a first updated program as a program to be executed. While the information processing apparatus acts as a master that controls the program update process, the update control unit updates the second program to a second updated program as a program to be executed, and notifies a management apparatus of a progress state of the program update process according to the first program or first updated program.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: October 20, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Tomohiko Muroyama, Noriyuki Yasu, Tadashi Matsumura
  • Publication number: 20180349030
    Abstract: A storage control program for causing a storage control device to perform: receiving, from a higher-level device, an input/output request including a logical address specifying a logical block within a volume; and determining a storage control device for processing the input/output request from among a plurality of storage control devices that may access a storage having a physical storage area assigned to the volume based on the logical address included in the received input/output request, the number of logical blocks per divided block size partitioning the volume, and number of the plurality of storage control devices.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 6, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Takahiro Ohyama, Noriyuki Yasu, TATSUHIKO MACHIDA, Kenichiro Shibata
  • Publication number: 20180307615
    Abstract: A storage control apparatus configured to control a storage device including a storage medium having a limited number of writes, includes a memory, and a processor coupled to the memory and configured to store, in the memory, address conversion information associating logical addresses used for data identification by an information processing apparatus accessing to the storage device, and physical addresses indicating positions where the data is stored on the storage medium, write the data additionally and collectively to the storage medium, and when the data is updated, maintain storing a reference logical address associated with the data before updated and the data before updated on the storage medium.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 25, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Naohiro Takeda, Norihide KUBOTA, YOSHIHITO KONTA, Yusuke Kurasawa, Toshio Kikuchi, Yuji TANAKA, Marino Kajiyama, Yusuke Suzuki, YOSHINARI SHINOZAKI, Takeshi WATANABE, Noriyuki Yasu
  • Patent number: 9990155
    Abstract: A storage control device configured to be coupled to a storage device including a first portion and a second portion, the storage control device includes a memory, and a processor configured to control an operation mode of the first portion of the storage device to be in a first mode and a second mode, a first power consumed by the first portion in the first mode being less than a second power consumed by the first portion in the second mode, set the operation mode of the first portion in the first mode, receive a first request, determine whether the received first request is a polling access request, and when the received first request is the polling access request, keep the operation mode of the first portion in the first mode, and read first data from the second portion.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: June 5, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Tadashi Matsumura, Tomohiko Muroyama, Motoki Sotani, Noriyuki Yasu
  • Patent number: 9696929
    Abstract: When a power-saving period registered in device management information is reached, a processor of a storage control apparatus sets an operation mode of the corresponding storage device to a power-saving mode. In addition, the processor deletes identification information of data stored in a storage device whose power-saving period is registered in the device management information, from data management information in which identification information of data that could be copied to a cache from at least one access-destination storage device asynchronously with access by the host apparatus is registered.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: July 4, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Tomohiko Muroyama, Tadashi Matsumura, Noriyuki Yasu, Motoki Sotani
  • Publication number: 20170139698
    Abstract: In an information processing apparatus, an execution unit executes a first program and a second program. While the information processing apparatus acts as a slave that performs a program update process in response to instructions from a different information processing apparatus, an update control unit updates the first program to a first updated program as a program to be executed. While the information processing apparatus acts as a master that controls the program update process, the update control unit updates the second program to a second updated program as a program to be executed, and notifies a management apparatus of a progress state of the program update process according to the first program or first updated program.
    Type: Application
    Filed: October 18, 2016
    Publication date: May 18, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Tomohiko Muroyama, Noriyuki Yasu, Tadashi Matsumura
  • Patent number: 9606789
    Abstract: A storage device includes first and second data transceivers connected to an upper level device through first and second paths, respectively, and a third processor. The first data transceiver includes a first processor configured to perform an access control of a first logical memory group by executing first firmware. The second data transceiver performs an access control of a second logical memory group. The third processor is configured to change, when all of logical memories included in the first logical memory group are included in the second logical memory group, recommendation levels of the first path and the second path such that a first recommendation level of the first path is lower than a second recommendation level of the second path if the first recommendation level is higher than or equal to the second recommendation level, and update the first firmware when no data is flowing through the first path.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: March 28, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Tomohiko Muroyama, Tadashi Matsumura, Noriyuki Yasu, Motoki Sotani
  • Patent number: 9507585
    Abstract: A storage unit stores information on the compatibility between different versions of firmware used for controlling two redundant modules provided in a storage apparatus. Upon updating firmware of the modules from a first version to a second version incompatible with the first version, a computing unit applies, alternately to one of the modules, firmware of a version that is one of versions from the first version to the second version, that is compatible with firmware of a version currently applied to the other one of the modules, and that is more recent than the version currently applied to the other one of the modules, by referring to the information.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: November 29, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Motoki Sotani, Tadashi Matsumura, Noriyuki Yasu, Tomohiko Muroyama
  • Patent number: 9507703
    Abstract: In a storage control apparatus, an acquiring unit acquires first information indicating the frequency of random access to a first logical region and second information indicating the data size of random access, based on the content of access from the information processing apparatus. A controlling unit determines the size of storage areas to be allocated to a second logical region based on the second information indicating the data size of random access when the first information indicates that the frequency of random access is equal to or greater than a threshold value. The controlling unit creates the second logical region using a plurality of storage devices. The controlling unit controls access from the information processing apparatus such that the access is made to the second logical region instead of the first logical region.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 29, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Tomohiko Muroyama, Masahiro Yoshida, Tadashi Matsumura, Noriyuki Yasu, Motoki Sotani
  • Publication number: 20160321006
    Abstract: A storage control device configured to be coupled to a storage device including a first portion and a second portion, the storage control device includes a memory, and a processor configured to control an operation mode of the first portion of the storage device to be in a first mode and a second mode, a first power consumed by the first portion in the first mode being less than a second power consumed by the first portion in the second mode, set the operation mode of the first portion in the first mode, receive a first request, determine whether the received first request is a polling access request, and when the received first request is the polling access request, keep the operation mode of the first portion in the first mode, and read first data from the second portion.
    Type: Application
    Filed: April 15, 2016
    Publication date: November 3, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Tadashi Matsumura, Tomohiko Muroyama, Motoki Sotani, Noriyuki Yasu
  • Publication number: 20160210073
    Abstract: When a power-saving period registered in device management information is reached, a processor of a storage control apparatus sets an operation mode of the corresponding storage device to a power-saving mode. In addition, the processor deletes identification information of data stored in a storage device whose power-saving period is registered in the device management information, from data management information in which identification information of data that could be copied to a cache from at least one access-destination storage device asynchronously with access by the host apparatus is registered.
    Type: Application
    Filed: November 19, 2015
    Publication date: July 21, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Tomohiko Muroyama, Tadashi Matsumura, Noriyuki Yasu, Motoki Sotani
  • Publication number: 20160062761
    Abstract: A storage device includes first and second data transceivers connected to an upper level device through first and second paths, respectively, and a third processor. The first data transceiver includes a first processor configured to perform an access control of a first logical memory group by executing first firmware. The second data transceiver performs an access control of a second logical memory group. The third processor is configured to change, when all of logical memories included in the first logical memory group are included in the second logical memory group, recommendation levels of the first path and the second path such that a first recommendation level of the first path is lower than a second recommendation level of the second path if the first recommendation level is higher than or equal to the second recommendation level, and update the first firmware when no data is flowing through the first path.
    Type: Application
    Filed: July 28, 2015
    Publication date: March 3, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Tomohiko Muroyama, Tadashi Matsumura, Noriyuki Yasu, Motoki Sotani
  • Publication number: 20150347124
    Abstract: A storage unit stores information on the compatibility between different versions of firmware used for controlling two redundant modules provided in a storage apparatus. Upon updating firmware of the modules from a first version to a second version incompatible with the first version, a computing unit applies, alternately to one of the modules, firmware of a version that is one of versions from the first version to the second version, that is compatible with firmware of a version currently applied to the other one of the modules, and that is more recent than the version currently applied to the other one of the modules, by referring to the information.
    Type: Application
    Filed: April 22, 2015
    Publication date: December 3, 2015
    Inventors: Motoki Sotani, Tadashi Matsumura, Noriyuki Yasu, Tomohiko Muroyama
  • Patent number: 9201734
    Abstract: A storage control system includes: storage units each including a first storage area storing information and a second storage area storing management information that contains attribute information of partition information indicating how information is stored in partitions obtained by partitioning the first storage area; an obtaining unit to obtain the management information from the plurality of storage units; a determination unit to determine whether abnormal management information is present in the obtained management information by comparing the obtained management information with itself; and a recovery unit to reconfigure, when it is determined there is the abnormal management information, for each unit of partition, information stored in the first storage area of the storage unit from which the abnormal management information has been obtained by using one of the storage units from which normal management information has been obtained, based on attribute information of the normal management information
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: December 1, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Tadashi Matsumura, Noriyuki Yasu, Tomohiko Muroyama, Motoki Sotani
  • Publication number: 20140082412
    Abstract: A storage control system includes: storage units each including a first storage area storing information and a second storage area storing management information that contains attribute information of partition information indicating how information is stored in partitions obtained by partitioning the first storage area; an obtaining unit to obtain the management information from the plurality of storage units; a determination unit to determine whether abnormal management information is present in the obtained management information by comparing the obtained management information with itself; and a recovery unit to reconfigure, when it is determined there is the abnormal management information, for each unit of partition, information stored in the first storage area of the storage unit from which the abnormal management information has been obtained by using one of the storage units from which normal management information has been obtained, based on attribute information of the normal management information
    Type: Application
    Filed: September 10, 2013
    Publication date: March 20, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Tadashi MATSUMURA, Noriyuki YASU, Tomohiko MUROYAMA, Motoki SOTANI
  • Publication number: 20130262813
    Abstract: In a storage control apparatus, an acquiring unit acquires first information indicating the frequency of random access to a first logical region and second information indicating the data size of random access, based on the content of access from the information processing apparatus. A controlling unit determines the size of storage areas to be allocated to a second logical region based on the second information indicating the data size of random access when the first information, indicates that the frequency of random access is equal to or greater than a threshold value. The controlling unit creates the second logical region using a plurality of storage devices. The controlling unit controls access from the information processing apparatus such that the access is made to the second logical region instead of the first logical region.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 3, 2013
    Applicant: Fujitsu Limited
    Inventors: Tomohiko MUROYAMA, Masahiro Yoshida, Tadashi Matsumura, Noriyuki Yasu, Motoki Sotani