Patents by Inventor Naohiro Tamura

Naohiro Tamura 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: 10177971
    Abstract: An operation management device includes a processor that executes a procedure including: for plural nodes that includes plural nodes operating as virtual computers on one or more computers and that plural nodes that have a dependency relationship, deriving group information indicating the plural nodes having the dependency relationship on a basis of communication information from when the inter-node communication; and based on location information of the respective plural nodes included in the derived group information, determining operation information indicating that plural nodes included in the group information operate on a single computer, or operation information indicating that the plural nodes included in the group information respectively operate on plural computers, for the plural nodes included in the group information.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 8, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hiroyuki Takagi, Naohiro Tamura
  • Patent number: 10055243
    Abstract: A server device includes a virtualization control unit, a storing unit, and a transferring unit. The virtualization control unit operates a virtual machine that is a virtualized computer to control a migration of the virtual machine with another server device. The storing unit stores therein a log, in an associated manner with the virtual machine, that is created by the virtual machine. When the virtual machine is migrated to the other server device, the transferring unit transfers, to the other server device, the log of the virtual machine targeted for a migration stored in the storing unit.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: August 21, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Kei Nakata, Naohiro Tamura
  • Patent number: 9882796
    Abstract: A management apparatus acquires state information indicating a state of a monitoring target by communicating with the monitoring target through a first monitoring path at a monitoring timing for monitoring the monitoring target, and detects a use state of the first monitoring path. Upon determining, based on the use state, that a delay is expected to occur in at a next monitoring timing, the management apparatus changes the first monitoring path to a second monitoring path different from the first monitoring path, and communicates with the monitoring target through the changed second monitoring path.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: January 30, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Toshiro Ariga, Naohiro Tamura
  • Patent number: 9674061
    Abstract: A management system includes an application source node that applies for subscription of alive and dead state information to a node to be monitored, a node to be monitored that interconnects with the application source node and makes a request to a node whose routing table includes the node to be monitored for monitoring the node to be monitored and notifying the application source node of a monitoring result when receiving the subscription application, and a monitoring node that monitors the node to be monitored when receiving the request from the node to be monitored and makes a notification to the application source node when a response from the node to be monitored stops. The application source node determines that the node to be monitored stops when communication with the node to be monitored is disconnected and the notification is received from the monitoring node.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: June 6, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Naohiro Tamura
  • Patent number: 9590864
    Abstract: A network management apparatus includes a first storage unit, a second storage unit, and a controller. The first storage unit stores therein communication groups included in the same subnet and information about communication devices belonging to the respective communication groups in association with each other. The second storage unit stores therein for each of the communication devices a port of a relaying device connected to the communication device as a connection destination port. The controller allows the relaying devices to perform communication between the connection destination ports on the basis of the first storage unit and the second storage unit to allow communication only between the communication devices belonging to the same communication group.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: March 7, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Toru Kawakami, Nobumasu Kobayashi, Kei Nakata, Naohiro Tamura, Sawao Iwatani
  • Patent number: 9541980
    Abstract: An operation management device that comprises: a memory configured to store, for a plurality of nodes that each operate on one computer out of a plurality of computers included in a computer system and for a plurality of nodes capable of moving between the plurality of computers, operation suspension sequence data of the plurality of nodes, and data of operation suspension times needed for operation suspension of each of the plurality of nodes; and a processor configured to execute a procedure, the procedure comprising: from a timing earlier than suspending operation of the computer system and a timing earlier than a total sum of the operation suspension times of the plurality of nodes or greater, suspending operation of the plurality of nodes in an operation suspension sequence indicated by the operation suspension sequence data.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: January 10, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Satsuki Katano, Naohiro Tamura
  • Patent number: 9448904
    Abstract: An information processing apparatus includes an instruction unit and a calculation unit, and instructs a plurality of physical servers to start to provide or stop providing service. The calculation unit monitors the operating status of equipment that is installed in each of a plurality of chassis each housing one or a plurality of physical servers and that is used for operations of the physical servers. Then, the calculation unit calculates an equipment error probability indicating how likely the physical servers housed in a chassis are to fail to provide service due to an error in the equipment of the chassis. The instruction unit instructs physical servers to start to provide or stop providing the service, based on the equipment error probabilities of the plurality of chassis.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: September 20, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yousuke Ishida, Naohiro Tamura
  • Patent number: 9430261
    Abstract: A controlling method realized by a computer connected to a plurality of physical devices in which respective virtual machines (VMs) are operated and a process device which is connected to the plurality of physical devices with a plurality of routes and in which a plurality of duplication process VMs for executing a duplication process of duplicating data used by the plurality of VMs to a memory device, the method includes: acquiring loads of the plurality of routes and percentages of completion of the duplication process executed by the plurality of duplication process VMs; and, when incompletion of the duplication process using the selected route within a regulated time is detected, moving any of the duplication process VMs using the selected route to any of the plurality of physical devices from the process device.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 30, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Hiroyuki Inada, Naohiro Tamura, Masahiro Chiba, Masayoshi Utaka
  • Publication number: 20160216998
    Abstract: A server device includes a virtualization control unit, a storing unit, and a transferring unit. The virtualization control unit operates a virtual machine that is a virtualized computer to control a migration of the virtual machine with another server device. The storing unit stores therein a log, in an associated manner with the virtual machine, that is created by the virtual machine. When the virtual machine is migrated to the other server device, the transferring unit transfers, to the other server device, the log of the virtual machine targeted for a migration stored in the storing unit.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Kei NAKATA, Naohiro TAMURA
  • Patent number: 9336050
    Abstract: A server device includes a virtualization control unit, a storing unit, and a transferring unit. The virtualization control unit operates a virtual machine that is a virtualized computer to control a migration of the virtual machine with another server device. The storing unit stores therein a log, in an associated manner with the virtual machine, that is created by the virtual machine. When the virtual machine is migrated to the other server device, the transferring unit transfers, to the other server device, the log of the virtual machine targeted for a migration stored in the storing unit.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: May 10, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Kei Nakata, Naohiro Tamura
  • Patent number: 9319271
    Abstract: A management device includes a memory and a processor coupled to the memory. The processor executes a process including, searching a network for a node that belongs to a management area to which the management device belongs, and creating management information in which the node searched for at the searching is used as a node that is targeted for management.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: April 19, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Naohiro Tamura
  • Patent number: 9317394
    Abstract: A management computer performs a process comprising: a first step and a second step. The first step collects failure-predictive information including information on a plurality of kinds of phenomena related to occurrence of a failure from each of a plurality of computers including an active first computer in a redundant system that are managed by said management computer. The second step calculates, for each individual second computer of one or more second computers of a plurality of second computers associated with said first computer in said redundant system, an evaluation value that indicates the probability of occurrence of a future failure in the individual second computer using said failure-predictive information collected from the individual second computer and said failure-predictive information collected from one or more predetermined computers other than the individual second computer of said plurality of computers.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: April 19, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Kazuto Sakurai, Hitoshi Sawada, Naohiro Tamura
  • Patent number: 9274593
    Abstract: A management server includes a storage unit that stores therein destination physical machine information capable of identifying a physical machine serving as a destination candidate of a certain virtual machine that operates on any one of a plurality of physical machines. The management server includes a control unit that performs the following control. To stop power supply to a first physical machine group performed by a first control unit, the control unit detects. The control unit changes the destination physical machine information such that the destination candidate of the certain virtual machine includes at least a physical machine belonging to a second physical machine group when information capable of identifying the physical machine serving as the destination candidate and stored in the storage unit includes no other physical machine than a physical machine belonging to the first physical machine group.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 1, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Akito Yamazaki, Naohiro Tamura, Sawao Iwatani
  • Patent number: 9244731
    Abstract: A migration management apparatus includes a first decision unit, a second decision unit, and a migration processing unit. The first decision unit simulates the migration of each virtual machine being a migration target to decide a migration destination. The second decision unit decides a migration mode of the virtual machine whose migration destination has been decided by the first decision unit based on the power status of the virtual machine. The migration processing unit, upon the migration destinations and migration modes of the virtual machines being the migration targets having been decided, migrates the virtual machines to the respective migration destinations decided by the first decision unit in the respective migration modes decided by the second decision unit.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: January 26, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Dich Tan Dixon Siu, Naohiro Tamura
  • Publication number: 20150381449
    Abstract: A management apparatus acquires state information indicating a state of a monitoring target by communicating with the monitoring target through a first monitoring path at a monitoring timing for monitoring the monitoring target, and detects a use state of the first monitoring path. Upon determining, based on the use state, that a delay is expected to occur in at a next monitoring timing, the management apparatus changes the first monitoring path to a second monitoring path different from the first monitoring path, and communicates with the monitoring target through the changed second monitoring path.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 31, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Toshiro ARIGA, Naohiro TAMURA
  • Publication number: 20150163092
    Abstract: An operation management device includes a processor that executes a procedure including: for plural nodes that includes plural nodes operating as virtual computers on one or more computers and that plural nodes that have a dependency relationship, deriving group information indicating the plural nodes having the dependency relationship on a basis of communication information from when the inter-node communication; and based on location information of the respective plural nodes included in the derived group information, determining operation information indicating that plural nodes included in the group information operate on a single computer, or operation information indicating that the plural nodes included in the group information respectively operate on plural computers, for the plural nodes included in the group information.
    Type: Application
    Filed: February 19, 2015
    Publication date: June 11, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Hiroyuki TAKAGI, Naohiro Tamura
  • Publication number: 20150154040
    Abstract: A controlling method realized by a computer connected to a plurality of physical devices in which respective virtual machines (VMs) are operated and a process device which is connected to the plurality of physical devices with a plurality of routes and in which a plurality of duplication process VMs for executing a duplication process of duplicating data used by the plurality of VMs to a memory device, the method includes: acquiring loads of the plurality of routes and percentages of completion of the duplication process executed by the plurality of duplication process VMs; and, when incompletion of the duplication process using the selected route within a regulated time is detected, moving any of the duplication process VMs using the selected route to any of the plurality of physical devices from the process device.
    Type: Application
    Filed: November 6, 2014
    Publication date: June 4, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Hiroyuki INADA, Naohiro TAMURA, Masahiro CHIBA, Masayoshi UTAKA
  • Publication number: 20140380079
    Abstract: An operation management device that comprises: a memory configured to store, for a plurality of nodes that each operate on one computer out of a plurality of computers included in a computer system and for a plurality of nodes capable of moving between the plurality of computers, operation suspension sequence data of the plurality of nodes, and data of operation suspension times needed for operation suspension of each of the plurality of nodes; and a processor configured to execute a procedure, the procedure comprising: from a timing earlier than suspending operation of the computer system and a timing earlier than a total sum of the operation suspension times of the plurality of nodes or greater, suspending operation of the plurality of nodes in an operation suspension sequence indicated by the operation suspension sequence data.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Satsuki KATANO, Naohiro Tamura
  • Publication number: 20140298113
    Abstract: A management computer performs a process comprising: a first step and a second step. The first step collects failure-predictive information including information on a plurality of kinds of phenomena related to occurrence of a failure from each of a plurality of computers including an active first computer in a redundant system that are managed by said management computer. The second step calculates, for each individual second computer of one or more second computers of a plurality of second computers associated with said first computer in said redundant system, an evaluation value that indicates the probability of occurrence of a future failure in the individual second computer using said failure-predictive information collected from the individual second computer and said failure-predictive information collected from one or more predetermined computers other than the individual second computer of said plurality of computers.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Kazuto Sakurai, Hitoshi SAWADA, Naohiro Tamura
  • Patent number: 8788636
    Abstract: A managed server (srv-10) is powered on by a power controlling unit. The managed server executes a POST process, and transfers a PXE request to a boot controlling unit. The boot controlling unit transfers an HBA vendor determining program. In the managed server, the WWN is set by an HBA vendor-dedicated program corresponding to an HBA vendor, and when a PCI initialization code can not be loaded, the POST process is re-started, and the PXE request is transferred again. The boot controlling unit transfers an NOP program, and the managed server starts an OS with a SAN boot.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: July 22, 2014
    Assignee: Fujitsu Limited
    Inventors: Naohiro Tamura, Sawao Iwatani, Kaoru Miyamoto