Patents by Inventor Shiro Nohara

Shiro Nohara 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).

  • Virtual computer system for restoring network connection of live-migrated virtual computer
    Patent number: 9323566
    Abstract: The network connection of a VM (target VM) that has been live-migrated from a first physical computer to a second physical computer is restored in a virtual computer system in which communication is performed using a certain type of information outside the jurisdiction of a virtualization mechanism. When receiving a packet from the VM, the first virtualization mechanism of the first physical computer extracts a certain type of information from the packet and registers the extracted certain type of information in a first management information unit. The first virtualization mechanism transmits the certain type of information in the first management information unit to the second virtualization mechanism of the second physical computer during live migration.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: April 26, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Yukari Hatta, Norimitsu Hayakawa, Hiroshi Miki, Shiro Nohara, Takao Totsuka
  • VIRTUAL COMPUTER SYSTEM FOR RESTORING NETWORK CONNECTION OF LIVE-MIGRATED VIRTUAL COMPUTER
    Publication number: 20150121372
    Abstract: The network connection of a VM (target VM) that has been live-migrated from a first physical computer to a second physical computer is restored in a virtual computer system in which communication is performed using a certain type of information outside the jurisdiction of a virtualization mechanism. When receiving a packet from the VM, the first virtualization mechanism of the first physical computer extracts a certain type of information from the packet and registers the extracted certain type of information in a first management information unit. The first virtualization mechanism transmits the certain type of information in the first management information unit to the second virtualization mechanism of the second physical computer during live migration.
    Type: Application
    Filed: August 22, 2012
    Publication date: April 30, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Yukari Hatta, Norimitsu Hayakawa, Hiroshi Miki, Shiro Nohara, Takao Totsuka