Fujitsu Corporation

Toshihide Yanagawa

Hiroshi Murayama

Kazunori Kobashi

Hiroshi Yazawa

Masaru Shibata

Himiko Kaneko

Minoru Maeda

Eiji Hamamoto

Naoki Furutani

Yoshio Ookubo

Hiroyuki Ando

Masato Yamagami

Akira Nakada

Keiichi Nakai

An information processing system includes a first storage apparatus that includes first storage regions accessible by first virtual machines disposed in a first physical machine, and a second storage apparatus that includes second storage regions accessible by second virtual machines disposed in a second physical machine, wherein, when the second virtual machines execute first processing executed by the first virtual machines, the second storage apparatus stores first information in which information for identifying virtual machines that execute the first processing among the second virtual machines and information for identifying storage regions accessed by the identified virtual machines during the execution of the first processing among the second storage regions are associated with each other, and the first storage apparatus reconfigures a configuration of the first storage regions to be same as a configuration of a storage region corresponding to the first information among the second storage regions.

Information processing system, storage apparatus, and program

A storage system manages initialization status of a storage area block by block. The storage system allows reception of an access request indicating data write to Storage Area #, which is a part of an uninitialized block. Upon receiving the access request, the storage system writes data to the designated Storage Area #without initializing Storage Area #, and initializes, of the uninitialized block, Storage Area #not designated by the access request. The storage system determines that initialization of the uninitialized block has been completed with the data write to Storage Area #and the initialization of Storage Area #.

Data access method and data access apparatus for managing initialization of storage areas

A storage control device configured to control a storage device includes a first disk which is in active state and a second disk which is in standby state. The storage control device includes a communication unit and a control unit. The communication unit transmits a read-out request or a write request to the storage device and receives a response to the read-out request or the write request from the storage device. The control unit controls the communication unit so that the communication unit transmits a rotation start command which instructs a start of rotation of the second disk to the storage device, when a time to the point when receiving the response to the read-out request or the write request transmitted to the first disk which is in active state is longer than a predetermined threshold.

Storage control device, storage device, storage system, storage control method, and program for the same

In a first management unit for a redundant array of independent disks (RAID management unit), a shared-class setting unit receives a shared-class setting command, for example, from a host computer. If the shared-class setting command includes information about the first RAID management unit and a second RAID management unit, a shared management-information creating unit creates shared management information, writes the created shared management information onto a first disk, notifies the second RAID management unit corresponding to a second disk about the shared management information, and gives an instruction to write the shared management information onto the second disk. The second RAID management unit then writes the notified shared management information onto the second disk.

RAID management apparatus, RAID management method, and computer product

A method of transferring a virtual volume established on a real volume includes acquiring transfer source virtual volume information from a transfer source, acquiring transfer destination real volume information from a transfer destination, generating transfer destination virtual volume information from the transfer source virtual volume information by using the transfer destination real volume information, and establishing a virtual volume at the transfer destination based on the transfer destination virtual volume information.

Virtual volume transfer apparatus, virtual volume transfer method, and computer product

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Yokohama, Japan

Toshihide Yanagawa