1
Naoto Matsunami, Takashi Oeda, Akira Yamamoto, Yasuyuki Mimatsu, Masahiko Sato: Disk storage system including a switch. Hitachi, Mattingly Stanger & Malur PC, April 1, 2003: US06542961 (94 worldwide citation)

A disk storage system containing a storage device having a record medium for holding the data, a plurality of storage sub-systems having a controller for controlling the storage device, a first interface node coupled to a computer using the data stored in the plurality of storage sub-systems, a plur ...


2
Yasunori Kaneda, Takashi Oeda, Kiyoshi Honda, Naoto Matsunami, Hitoshi Akiyama, Hiroshi Arakawa, Minoru Yoshida, Ikuya Yagisawa: Array type disk system updating redundant data asynchronously with data access. Hitachi, Antonelli Terry Stout & Kraus, June 2, 1998: US05761402 (88 worldwide citation)

In a disk array system, data read out and data written anew are temporarily held as former data in a former data holding portion. When a write operation has occurred, a CPU searches the holding portion for write data, it generates update data from the new and former write data items, and it holds th ...


3
Haruaki Watanabe, Kouji Arai, Katsunori Nakamura, Takashi Oeda, Akira Yamamoto, Kenji Yamagami: Storage system. Hitachi, Mattingly Stanger & Malur P C, January 20, 2004: US06681303 (88 worldwide citation)

In a storage system, a logical volume is divided into a plurality of small areas called logical storage devices and only such an area designated by a user is made an object of remote copying or migratory copying. Also, there is provided a unit for forming a logical volume from any logical storage de ...


4
Hiroshi Arakawa, Takashi Oeda, Naoto Matsunami, Ryusuke Ito: Storage system having virtualized resource. Hitachi, Townsend and Townsend and Crew, May 22, 2007: US07222172 (86 worldwide citation)

A storage system configured to provide a storage area to a host coupled to the storage system includes a first storage device being configured to store data and provide one or more functions. A second storage device is configured to store data and provide one or more functions. A virtual volume prov ...


5
Takashi Oeda, Kiyoshi Honda, Naoto Matsunami, Minoru Yoshida: Computer system including a device with a plurality of identifiers. Hitachi, Antonelli Terry Stout & Kraus, May 27, 1997: US05634111 (83 worldwide citation)

A host computer is connected with a magnetic disk storage device by an SCSI bus. In the magnetic disk storage device, a plurality of partitions are set in a disk drive unit and have device identifiers (ID's) respectively allocated thereto as SCSI ID's=1, 2 and 3, which are supported by a disk contro ...


6
Yasuyuki Mimatsu, Naoto Matsunami, Kenji Muraoka, Takashi Oeda, Ikuya Yagisawa: Computer system and snapshot data management method thereof. Hitachi, Townsend and Townsend and Crew, February 17, 2004: US06694413 (79 worldwide citation)

A method of managing snapshot data of a computer system provided with a computer and a storage subsystem coupled to the computer, and the computer system to which the method is applied, are disclosed. The storage subsystem is provided with the duplicated first and second storage units. In the state ...


7
Shigeo Honma, Hiroshi Morishima, Tokuhiro Tsukiyama, Hiroyuki Matsushima, Takashi Oeda, Yoji Tomono: Computer system having a storage area network and method of handling data in the computer system. Hitachi, Mattingly Stanger Malur & Brundidge P C, September 27, 2005: US06950871 (76 worldwide citation)

In order to construct an integrated storage system by reinforcing collaboration of components or functions of a storage system in which a storage area network (SAN) is used, in a computer system having multiple client computers, multiple various servers, multiple various storages which keep data, an ...


8
Naoto Matsunami, Yasuyuki Mimatsu, Yoichi Mizuno, Kenji Muraoka, Takashi Oeda: Method of creating a storage area & storage device. Hitachi, Townsend and Townsend and Crew, June 28, 2005: US06912627 (51 worldwide citation)

An administrator is required to prepare in advance LU as a pool area when a user storage area is set to a storage. LU configuration is generally cumbersome and it is not easy for a general user to configure it. A pool manager 1 and a storage 1 setting utility in a management console 1 communicate wi ...


9
Ryuichi Hattori, Toshihiko Ogura, Takashi Oeda, Koichi Okazawa, Hideki Osaka, Tsunehiro Tobita, Tsutomu Hara: Information processing system and method and service supplying method for use within a network. Hitachi, Antonelli Terry Stout & Kraus, June 30, 1998: US05774656 (50 worldwide citation)

In each of the information processing apparatuses connected to each other via a network, there is arranged a quality of service (QOS) table to which functions and performance thereof are registered. When an information processing apparatus is additionally linked with the network, a QOS table thereof ...


10
Hiroshi Arakawa, Takashi Oeda, Katsunori Nakamura: Virtualized volume snapshot formation method. Hitachi, Antonelli Terry Stout & Kraus, April 19, 2005: US06883073 (46 worldwide citation)

A server has management information including correspondence information between a physical storage region and a virtualized storage region, so as to provide a virtualized storage region. The server includes a unit for using the management information to provide a virtualized storage region to anoth ...