Hitachi, Ltd.

Ryota Noguchi

Yuta Sawa

Takashi Shimojo

Hiromi Nagashima

Yasuyuki Hirose

Shizuki Terashima

Yoshihiro Hattori

Harumi Ooigawa

The virtual computer system comprises a network device which is capable of being coupled via a network to an external network apparatus and is able to operate multiple virtual computers. The network device comprises multiple communication ports which can be provided to a virtual computer with respect to a single physical communication port. When a certain the above-mentioned virtual computer is booted up, the virtual computer system acquires a MAC address corresponding to the above-mentioned certain virtual computer from multiple MAC addresses, which correspond to each of multiple the above-mentioned virtual computers and are allocated to the virtual communication port provided in the virtual computer, and configures this MAC address as the MAC address of the virtual communication port allocated to the above-mentioned certain virtual computer.

Virtual computer system, virtual computer management program, and MAC address management method

The user needs to install an OS every LPAR on a virtual computer. Simultaneous OS installing in a plurality of LPARs is implemented by generating a first LPAR (special LPAR), a second LPAR (install mode LPAR), and a third LPAR (normal LPAR) on the basis of LPAR configuration information, copying an OS image to an MMIO space of the first LPAR, allocating the MMIO space of the first LPAR to an MMIO space of the second LPAR, and converting access to the MMIO space of the second LPAR to access to the MMIO space of the first LPAR.

Virtual computer system and method of installing virtual computer system

A hypervisor acquires an I/O command that has been issued from a virtual computer. The hypervisor judges whether or not a target of an I/O that complies with the I/O command is an unassigned port associated device that is a device associated with an I/O port that is coupled to an I/O controller that is not assigned to a virtual computer that is an issuing source of the I/O command. In the case in which the result of the judgment is positive, the hypervisor does no execute an I/O to the unassigned port associated device, and returns a virtual execution result to the virtual computer that is an issuing source of the I/O command.

Computer system provided with hypervisor

An input/output (I/O) device fault processing method for executing, without contradiction, fault recovery processing of a physical I/O device which is commonly used or shared by a plurality of virtual computers in such a way that no influence is exerted on a virtual computer which does not presently use the shared I/O device is disclosed. A hypervisor performs fault monitoring of the physical I/O device. Upon occurrence of an operation failure, this failure is detected and notified to a virtual management computer. In responding to receipt of the notice, the virtual management computer performs the fault recovery processing of the physical I/O device.

Growing community of inventors

Hadano, Japan

Ryota Noguchi