Patents by Inventor Hodaka Furuya
Hodaka Furuya 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).
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Patent number: 7689603Abstract: A file server device is provided which has less chance of error in changing directory settings information. A file server device that has access to a client computer and a disk array device receives a directory settings file, and writes the directory settings file in a specified shared directory. The file server device chooses, as a migration destination candidate, a volume whose settings information matches new settings information of the shared directory which is set as specified in the directory settings file. The file server device migrates information in the shared directory whose settings information is changed to the volume chosen as a migration destination candidate.Type: GrantFiled: February 15, 2007Date of Patent: March 30, 2010Assignee: Hitachi, Ltd.Inventors: Takahiko Tomida, Yuki Sugimoto, Hideo Takahashi, Hodaka Furuya
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Publication number: 20080263128Abstract: The load condition of all of the servers participating in a system can be centrally managed. A load information filing function in each of servers collects basic information such as CPU usage rates, access requests (IOPS), etc and saves the information in a local LU. The load information filing function processes the basic information to generate load information which is then accumulated in a shared LU. The system administrator can display and verify a list of the stored load information on a terminal screen, by accessing the load information gathering function of any of the servers via a web browser in a terminal. When any of the servers is in a high load state, because a low load server proxies the load information-related processing of the high load server, the load condition of all of the servers can be centrally managed regardless of load variations in any of the servers.Type: ApplicationFiled: June 24, 2008Publication date: October 23, 2008Applicant: Hitachi, Ltd.Inventors: Yoji SUNADA, Hodaka Furuya
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Publication number: 20080140672Abstract: A file server device is provided which has less chance of error in changing directory settings information. A file server device that has access to a client computer and a disk array device receives a directory settings file, and writes the directory settings file in a specified shared directory. The file server device chooses, as a migration destination candidate, a volume whose settings information matches new settings information of the shared directory which is set as specified in the directory settings file. The file server device migrates information in the shared directory whose settings information is changed to the volume chosen as a migration destination candidate.Type: ApplicationFiled: February 15, 2007Publication date: June 12, 2008Inventors: Takahiko TOMIDA, Yuki Sugimoto, Hideo Takahashi, Hodaka Furuya
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Patent number: 7073036Abstract: On the basis of a priority table in which a plurality of group restoration priorities respectively corresponding to a plurality of element groups are recorded, the priority-based backup part backs up all of the backup object elements belonging to a first element group in a first continuous region which is a continuous recording region on a tape recording medium, and backs up all of the backup object elements belonging to a second element group whose group restoration priority is lower than that of said first element group in a second continuous region which is located on the tape tail end side of said first continuous region.Type: GrantFiled: June 18, 2004Date of Patent: July 4, 2006Assignee: Hitachi, Ltd.Inventors: Hodaka Furuya, Hitoshi Arai, Tomohiro Shinohara
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Patent number: 7062676Abstract: It is an object of the present invention to allow easy upgrading of the version of the OS in a failover cluster system. When the user mounts a storage medium 4 on the node 1, and gives instructions to install a program, the installation program 12 requests the failover program 11 for the stopping of heartbeat communications. The node 1 voluntarily stops heartbeat communications in a state in which the system of this node is operating normally. When the failover program 21 of the node 2 detects the stopping of heartbeat communications, this program starts failover, and takes over the business service of the node 1. During the execution of failover by the node 2, the program stored in the storage medium 4 is installed in the node 1. When this installation is completed, the node 1 transmits a failback request to the node 2, and restarts the business service.Type: GrantFiled: March 4, 2004Date of Patent: June 13, 2006Assignee: Hitachi, Ltd.Inventors: Tomohiro Shinohara, Hodaka Furuya, Yoji Sunada
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Publication number: 20050177767Abstract: On the basis of a priority table in which a plurality of group restoration priorities respectively corresponding to a plurality of element groups are recorded, the priority-based backup part backs up all of the backup object elements belonging to a first element group in a first continuous region which is a continuous recording region on a tape recording medium, and backs up all of the backup object elements belonging to a second element group whose group restoration priority is lower than that of said first element group in a second continuous region which is located on the tape tail end side of said first continuous region.Type: ApplicationFiled: June 18, 2004Publication date: August 11, 2005Applicant: Hitachi, Ltd.Inventors: Hodaka Furuya, Hitoshi Arai, Tomohiro Shinohara
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Publication number: 20050120354Abstract: The load condition of all of the servers participating in a system can be centrally managed. A load information filing function in each of servers (1) through (n) collects basic information such as CPU usage rates, access requests (IOPS) and so on, and saves the information in a local LU. The load information filing function statistically processes the basic information to generate load information. The load information accumulates in a shared LU. The system administrator can display and verify a list of the load information stored in the shared LU on a terminal screen, simply by accessing the load information gathering function of any of the servers via a web browser in a terminal. When any of the servers is in a high load state, because a low load server proxies the load information-related processing of the high load server, the load condition of all of the servers can be centrally managed regardless of load variations in any of the servers.Type: ApplicationFiled: March 4, 2004Publication date: June 2, 2005Applicant: Hitachi, Ltd.Inventors: Yoji Sunada, Hodaka Furuya
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Publication number: 20050102562Abstract: It is an object of the present invention to allow easy upgrading of the version of the OS in a failover cluster system. When the user mounts a storage medium 4 on the node 1, and gives instructions to install a program, the installation program 12 requests the failover program 11 for the stopping of heartbeat communications. The node 1 voluntarily stops heartbeat communications in a state in which the system of this node is operating normally. When the failover program 21 of the node 2 detects the stopping of heartbeat communications, this program starts failover, and takes over the business service of the node 1. During the execution of failover by the node 2, the program stored in the storage medium 4 is installed in the node 1. When this installation is completed, the node 1 transmits a failback request to the node 2, and restarts the business service.Type: ApplicationFiled: March 4, 2004Publication date: May 12, 2005Applicant: Hitachi, Ltd.Inventors: Tomohiro Shinohara, Hodaka Furuya, Yoji Sunada
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Patent number: RE42859Abstract: A file server device is provided which has less chance of error in changing directory settings information. A file server device that has access to a client computer and a disk array device receives a directory settings file, and writes the directory settings file in a specified shared directory. The file server device chooses, as a migration destination candidate, a volume whose settings information matches new settings information of the shared directory which is set as specified in the directory settings file. The file server device migrates information in the shared directory whose settings information is changed to the volume chosen as a migration destination candidate.Type: GrantFiled: April 16, 2010Date of Patent: October 18, 2011Assignee: Hitachi, Ltd.Inventors: Takahiko Tomida, Yuki Sugimoto, Hideo Takahashi, Hodaka Furuya