Hitachi, Ltd.

Other

Sumitomo Electric Industries, Limited

Tomoki Sekiguchi

Toshiaki Arai

Hiroshi Ohno

Naoko Ikegaya

Shigenori Kaneko

Masayuki Yamamoto

Naoto Matsunami

Yasunori Kaneda

Yukio Ogawa

Yutaka Kudo

Masakatsu Mori

Taro Inoue

Takashi Shibata

Hidetoshi Sato

Hiroshi Furukawa

Tomoaki Nakamura

Hirofumi Inomata

Ryokichi Yoshizawa

Manabu Yamauchi

Kazumi Ikeda

Naoshi Kato

Keisuke Hatasaki

Takayuki Nagai

Norio Shimozono

Yuji Kobayashi

Tetsuya Mochida

Tsuyoshi Watanabe

Hajime Arao

Takayuki Shimazu

Sachie Tajima

Naoki Utsunomiya

Hitoshi Ueno

Tsutomu Noda

Toshihisa Yokochi

Yutaka Enko

Futoshi Haga

Machiko Asaie

Souichi Takashige

Reki Yamamoto

Shigeo Takasaki

Naofumi Shouji

Tomohide Hasegawa

A computer system including a management computer for managing the entire system, an integral apparatus, and a high-level connecting device for connecting the management computer and the integral apparatus is designed so that the management computer retains integral apparatus internal configuration information, configuration information about an integral apparatus to be introduced, that indicates the configuration of the integral apparatus that may possibly be introduced to the system, and lifetime information indicating lifetime of the integral apparatus; obtains connectivity guarantee information indicating whether connectivity between the computer and the storage apparatus is guaranteed or not; selects an integral apparatus to be removed from the system by referring to the lifetime information; selects an integral apparatus to be introduced to the system by referring to the integral apparatus internal configuration information, the configuration information about the integral apparatus to be introduced, and the connectivity guarantee information.

Computer system and its renewal method

As only either of light emitting side wirings and light receiving side wirings crossover each other, the same connectorsmay be mounted at opposite ends of an optical fiber. Thus, it is possible to provide an optical connector module at low cost. Further, as the optical fiber is connected straight from one side to the other side, an assembly process is easy.

Optical connector module

A virtualization mechanism in a first computer of the plurality of computers generates at least one virtual computer on the first computer. The virtualization mechanism in the first computer executes at least one of a first judgment and a second judgment when a request for activating a first virtual computer of the at least one virtual computer is received, the first judgment being for judging whether or not the activation of the first virtual computer is prohibited based on first information stored in a memory of the virtualization mechanism, and the second judgment being for judging whether or not an identifier included in a logic I/O adapter device assigned to the first virtual computer is invalid based on second information stored in the memory of the virtualization mechanism. The activation of the first virtual computer is permitted or prohibited based on the executed judgment.

Computer system having a virtualization mechanism that executes a judgment upon receiving a request for activation of a virtual computer

A hypervisor is operated while an I/O device is not controlled by the hypervisor performs a process operation. A result of the process of the I/O device which is being concurrently operated is recorded to be capable of being reflected to the operation of the hypervisor. Therefore, a hypervisor which assigns a computer including an I/O control device controlling an I/O device, a main storage device, and a CPU as resources to each of one or more logical partitions (LPAR) and performs control, and a logging circuit recording data transmission from the I/O device to the main storage device, which is uncontrolled by the hypervisor, in response to an instruction from the hypervisor, are provided. It is possible to shorten a halt time period of an LPAR.

Virtual computer system and a method of controlling a virtual computer system on movement of a virtual computer

As regards a hardware fault which has occurred in a computer, a hypervisor notifies an LPAR which can continue execution, of a fault occurrence as a hardware fault for which execution can be continued. Upon receiving the notice, the LPAR notifies the hypervisor that it has executed processing to cope with a fault. The hypervisor provides an interface for acquiring a situation of a notice situation. It is made possible to register and acquire a situation of coping with a hardware fault allowing continuation of execution through the interface, and it is made possible to make a decision as to the situation of coping with a fault in the computers as a whole.

Partial fault processing method in computer system

To determine, when a virtual machine is executed by an arbitrary machine, whether the virtual machine can access computer resources required for the virtual machine, provided is a method of checking a possibility of executing a virtual machine including a first physical computer for executing a first virtual machine and a second physical computer capable of executing a virtual machine. The method includes the steps of: acquiring information on first logical resources; acquiring setting information set to a adaptor of the first physical computer so that the first virtual machine accesses the first logical resources; listing second logical resources accessible when the first virtual machine is executed by the second physical computer by setting the setting information to a adaptor of the second physical computer; and determining whether the first virtual machine can be executed by the second physical computer by comparing the first and second logical resources.

Method of checking a possibility of executing a virtual machine

In a plural computer system executing a virtual computer, an exterior storage volume may receive unjustly multiple access, and contents of the volume may be destroyed. Provided are: a switch coupling a virtual computer and I/O, a virtual computer managing unit coupled to a computer and the switch, and a determination unit determining a login acceptance/rejection of a virtual computer and I/O. The virtual computer possesses a virtual HBA, and upon receiving a login inquiry to the I/O from a certain virtual computer, a determination unit compares an identifier allocated to the certain virtual computer with an identifier allocated to another virtual computer to be executed on a physical computer different from the physical computer on which the certain virtual computer is executed, and determines login acceptance/rejection. Accordingly, an access control to the I/O is performed.

Virtual computer system, access control method and communication device for the same

Allocation of virtual disk volumes of a size designated by the computer manager to a virtual computer and accessiblity from the virtual computer to the virtual disk voumes without requiring intervention by a hypervisor are to be achieved. In a computer, at least one virtual computer to be in execution on the computer, and a computer system in which the virtual computer has volumes for holding data, a virtualization mechanism has a virtual volume allocating unit and a virtual volume information supplying unit, and the virtual computer has a virtual volume driver for converting positional information on virtual volumes. Additionally, the virtualization mechanism holds the virtual volume information together with defining information for the virtual computer to which the virtual volumes have been allocated.

Virtual volume allocating unit and method which allocate a new virtual volume to adequately-sized unused volume areas

In a system including a plurality of physical machines to execute virtual machines (VM, VM), migration virtual machine information and definition information are saved in a physical machine executing a virtual machine (VM) to be migrated and a storage of a physical machine as a migration destination. During the migration of the virtual machine, machine identification information of a migration partner, unique information assigned to the virtual machine, and information indicating whether the physical machine executing the processing is a migration-source or migration-destination physical machine are saved in a migration information storage area. A migration recovery section examines information stored in a definition information storage area and a migration information storage area to determine a recovery procedure to restore the virtual machine.

Virtual machine migration managing method, computer using the method, virtualizer using the method and computer system using the method

Computer system for managing virtual machine migration

The computer system has a plurality of physical server devices, a plurality of physical storage devices, and a management server device, and when migrating at least one of a plurality of first virtual server devices to another physical server device, the management server device compares at least one physical server device in which the plurality of first virtual server devices are disposed after the migration, with at least one physical server device in which a plurality of second virtual server devices are disposed, to calculate a first evaluation value, and also compares at least one physical server device in which the plurality of first virtual server devices are disposed after the migration, with at least one physical server device in which a plurality of third virtual server devices are disposed, to calculate a second evaluation value. Based on the first evaluation value and the second evaluation value, the management server device issues an instruction to migrate the first virtual storage device to the other physical storage device.

Management server device for managing virtual storage device, and method for managing virtual storage device

A virtual computer system has a plurality of computers for executing a program and a storage system connected to the computers via a network. A virtualization mechanism in a first computer of the plurality of computers generates at least one virtual computer on the first computer. The virtualization mechanism in the first computer executes at least one of a first judgment and a second judgment when a request for activating a first virtual computer of the at least one virtual computer is received, the first judgment being for judging whether or not the activation of the first virtual computer is prohibited based on first information stored in a memory of the virtualization mechanism, and the second judgment being for judging whether or not an identifier included in a logic I/O adapter device assigned to the first virtual computer is invalid based on second information stored in the memory of the virtualization mechanism. The activation of the first virtual computer is permitted or prohibited based on the executed judgment in response to the request for activating the first virtual computer.

Computer system, virtual computer system, computer activation management method and virtual computer activation management method

Growing community of inventors

Sagamihara, Japan

Tomoki Sekiguchi