Patents by Inventor Takuhiro Kawaji

Takuhiro Kawaji 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: 10579486
    Abstract: Provided is an integrated platform that has an active server, a standby server and a storage device. The storage device has a plurality of storage ports, and a WWN is assigned to each of the plurality of storage ports. An LUID is assigned to each of a plurality of logical volumes provided by the storage device. The active and standby servers are connected, respectively, to storage ports in a one-to-one relationship. The active server has boot search information that associates the WWN of a storage port at a connection destination; the LUN of a boot logical volume, which is a logical volume accessed during booting; and the LUID of the boot logical volume with one another. When a failover is executed, the boot search information of the active server is copied to the standby server.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: March 3, 2020
    Assignee: Hitachi, Ltd.
    Inventor: Takuhiro Kawaji
  • Publication number: 20180260289
    Abstract: Provided is an integrated platform that has an active server, a standby server and a storage device. The storage device has a plurality of storage ports, and a WWN is assigned to each of the plurality of storage ports. An LUID is assigned to each of a plurality of logical volumes provided by the storage device. The active and standby servers are connected, respectively, to storage ports in a one-to-one relationship. The active server has boot search information that associates the WWN of a storage port at a connection destination; the LUN of a boot logical volume, which is a logical volume accessed during booting; and the LUID of the boot logical volume with one another. When a failover is executed, the boot search information of the active server is copied to the standby server.
    Type: Application
    Filed: January 8, 2016
    Publication date: September 13, 2018
    Inventor: Takuhiro KAWAJI
  • Patent number: 7673022
    Abstract: In an information processing apparatus having a function for exploiting higher performance than a single server module by constituting an SMP by combining a plurality of server modules, a user is inhibited from illegally constituting an SMP construction that exceeds license information. When a partition is constituted by a construction against the SMP license information, a slot number representing the number of server modules belonging to a partition and mounted to a chassis and the number of server modules in the same partition are checked and the SMP construction is inhibited when they do not fall within the range of the slot number and the number of server modules in the license information.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: March 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Takuhiro Kawaji, Yoshinori Wakai, Nakaba Osano
  • Publication number: 20070011311
    Abstract: In an information processing apparatus having a function for exploiting higher performance than a single server module by constituting an SMP by combining a plurality of server modules, a user is inhibited from illegally constituting an SMP construction that exceeds license information. When a partition is constituted by a construction against the SMP license information, a slot number representing the number of server modules belonging to a partition and mounted to a chassis and the number of server modules in the same partition are checked and the SMP construction is inhibited when they do not fall within the range of the slot number and the number of server modules in the license information.
    Type: Application
    Filed: May 31, 2006
    Publication date: January 11, 2007
    Inventors: Takuhiro Kawaji, Yoshinori Wakai, Nakaba Osano