Patents by Inventor Masaaki Iwasaki
Masaaki Iwasaki 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).
-
Patent number: 9001650Abstract: An apparatus for terminating and replaying transmission control protocol (TCP) communication between a server and cellular phone is disclosed. The TCP relay apparatus performs precise control for each TCP connection in the process of executing default TCP transmission control for the server and performing wireless-optimized TCP transmission control for the cell phone while facilitating setup for determination of the type of a network to which a communication destination terminal belongs. The TCP relay apparatus includes a unit capable of setting TCP control information suitable for the characteristics of a network linked to the destination device on a per-TCP connection basis, a unit which enables an application program to instruct the TCP control information setting, and a unit which determines the network type by judging whether the connection is a passive connection to a listen port or a TCP connection to the server.Type: GrantFiled: January 22, 2013Date of Patent: April 7, 2015Assignee: Hitachi, Ltd.Inventors: Yoshiteru Takeshima, Hiraku Kawabe, Masahiko Nakahara, Masaaki Iwasaki
-
Publication number: 20150074251Abstract: A computer system, comprising: at least one computer; at least one network apparatus; at least one storage apparatus; and a plurality of service systems for use in execution of given services, the at least one computer including a system control part for managing the plurality of service systems, the system control part being configured to: hold system configuration information and evaluation information; obtain configuration information of the plurality of service systems from the system configuration information, in a case of evaluating the reliability of the plurality of service systems in the services; calculate the evaluation values of the plurality of service systems; and generate information that indicates the reliability of the plurality of service systems based on the calculated evaluation values.Type: ApplicationFiled: April 16, 2012Publication date: March 12, 2015Applicant: HITACHI, LTD.Inventors: Takashi Tameshige, Masaaki Iwasaki, Yutaka Kudo
-
Publication number: 20150067401Abstract: A computer recovery method for a computer system, the computer system having: a management computer having a processor and a memory; and a computer having a processor, a memory, and a monitoring part for notifying, when an abnormality occurs, the management computer of the abnormality, the management computer being configured to instruct recovery from the abnormality, the computer recovery method having: a first step of obtaining, by the management computer, hardware components and software components of the computer as configuration information; a second step of receiving, by the management computer, notification of an abnormality from the monitoring part of the computer; and a third step of generating, by the management computer, after the notification is received, component string information for identifying a component where the abnormality has occurred from the configuration information.Type: ApplicationFiled: June 22, 2012Publication date: March 5, 2015Applicant: HITACHI, LTD.Inventors: Yujiro Ichikawa, Yoshifumi Takamoto, Takashi Tameshige, Masaaki Iwasaki, Masayasu Asano
-
Publication number: 20150006722Abstract: Technique for decision criterion for determining a transfer destination layer in rearrangement processing. A computer configures rearrangement reference information showing whether an access characteristic related to a task executed on a plurality of host computing devices is considered as a decision criterion for transfer destination determination in rearrangement processing of transferring data between actual storage areas of physical storage devices of different response performance. Storage subsystem refers to the rearrangement reference information and, based on an access characteristic of the plurality of computing devices with respect to the actual storage areas assigned to the plurality of computing devices, executes rearrangement processing of transferring data stored in the actual storage areas to different actual storage areas in the physical storage devices of different response performance.Type: ApplicationFiled: September 18, 2014Publication date: January 1, 2015Applicant: HITACHI, LTD.Inventors: Nobuhito MORI, Masaaki IWASAKI, Junichi HARA
-
Publication number: 20140337675Abstract: If a failure occurs in physical resources constituting a virtual volume, a management server device is notified of information required by a user.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Applicant: Hitachi, Ltd.Inventors: Nobumitsu TAKAOKA, Masaaki IWASAKI, Shoji KODAMA
-
Patent number: 8868872Abstract: Technique for decision criterion for determining a transfer destination layer in rearrangement processing. A computer configures rearrangement reference information showing whether an access characteristic related to a task executed on a plurality of host computing devices is considered as a decision criterion for transfer destination determination in rearrangement processing of transferring data between actual storage areas of physical storage devices of different response performance. Storage subsystem refers to the rearrangement reference information and, based on an access characteristic of the plurality of computing devices with respect to the actual storage areas assigned to the plurality of computing devices, executes rearrangement processing of transferring data stored in the actual storage areas to different actual storage areas in the physical storage devices of different response performance.Type: GrantFiled: January 24, 2014Date of Patent: October 21, 2014Assignee: Hitachi, Ltd.Inventors: Nobuhito Mori, Masaaki Iwasaki, Juichi Hara
-
Publication number: 20140304242Abstract: A storage system 103 carries out first and second de-duplication processes in response to receiving a write request from a client. First, a determination is made as to whether a write target data item overlaps with any of the stored data items of a part of a stored data item group, which is a user data item group stored in a storage device 209, and if so, the write target data item is prevented from being stored in the storage device. Second, a determination is made as to whether a target stored data item, which is not finished being evaluated as to whether it overlaps with the stored data item in the first de-duplication process, overlaps with another stored data item, and if so, the target stored data item or the same data item overlapping with the target stored data item is deleted from the storage device 209.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Inventors: Takaki NAKAMURA, Akira YAMAMOTO, Masaaki IWASAKI, Yohsuke ISHII, Nobumitsu TAKAOKA
-
Patent number: 8819205Abstract: Provided are a content transfer system, a content transfer method, and a home server capable of backing up all backup target contents without having to transfer all backup target contents. This content transfer system includes a home storage and an online storage. The home storage transfers identifying information of a backup target content to the online storage and requests the online storage to determine the existence of a content that is identical to the backup target content upon requesting the online storage to back up the backup target content, transfers metadata to the online storage when an identical content exists in the online storage, and transfers the backup target content to the online storage in all other cases.Type: GrantFiled: March 20, 2008Date of Patent: August 26, 2014Assignee: Hitachi, Ltd.Inventors: Shoji Kodama, Kiyotake Kumazawa, Naoko Iwami, Akira Yamamoto, Masaaki Iwasaki
-
Patent number: 8793707Abstract: If a failure occurs in physical resources constituting a virtual volume, a management server device is notified of information required by a user.Type: GrantFiled: May 31, 2011Date of Patent: July 29, 2014Assignee: Hitachi, Ltd.Inventors: Nobumitsu Takaoka, Masaaki Iwasaki, Shoji Kodama
-
Patent number: 8793227Abstract: A storage system 103 carries out first and second de-duplication processes in response to receiving a write request from a client. First, a determination is made as to whether a write target data item overlaps with any of the stored data items of a part of a stored data item group, which is a user data item group stored in a storage device 209, and if so, the write target data item is prevented from being stored in the storage device. Second, a determination is made as to whether a target stored data item, which is not finished being evaluated as to whether it overlaps with the stored data item in the first de-duplication process, overlaps with another stored data item, and if so, the target stored data item or the same data item overlapping with the target stored data item is deleted from the storage device 209.Type: GrantFiled: September 7, 2012Date of Patent: July 29, 2014Assignee: Hitachi, Ltd.Inventors: Takaki Nakamura, Akira Yamamoto, Masaaki Iwasaki, Yohsuke Ishii, Nobumitsu Takaoka
-
Patent number: 8775600Abstract: Provided is a storage center including a storage subsystem for storing content data to be used by the user's home server, and a center server for controlling the storage subsystem. The center server aggregates the content recording reservation requests sent from several home servers, obtains content data from a content server and stores the content data in the storage subsystem at a designated recording start time, and notifies the user's home server that the recording reservation is complete.Type: GrantFiled: July 3, 2012Date of Patent: July 8, 2014Assignee: Hitachi, Ltd.Inventors: Naoko Iwami, Kiyotake Kumazawa, Akira Yamamoto, Masaaki Iwasaki, Shoji Kodama
-
Patent number: 8751657Abstract: An aspect of the invention is a multi-client storage system comprising a management computer including a processor and a memory, for allocating resources of a plurality of storage apparatus to a plurality of clients, the management computer comprising: a receiving unit for receiving conditions for a client to which a new resource is to be allocated; a determining unit for determining whether the new resource is securable under the received conditions without changing resources allocated to existing clients and conditions for the volumes for each of the existing clients; and an allocation unit for securing, when it is determined that the new resource is securable under the received conditions, the new resource under the received conditions for the client in the plurality of storage apparatus and allocating the new resource to the client.Type: GrantFiled: October 4, 2011Date of Patent: June 10, 2014Assignee: Hitachi, Ltd.Inventors: Norifumi Nishikawa, Hirokazu Ikeda, Masaaki Iwasaki
-
Publication number: 20140156927Abstract: Technique for decision criterion for determining a transfer destination layer in rearrangement processing. A computer configures rearrangement reference information showing whether an access characteristic related to a task executed on a plurality of host computing devices is considered as a decision criterion for transfer destination determination in rearrangement processing of transferring data between actual storage areas of physical storage devices of different response performance. Storage subsystem refers to the rearrangement reference information and, based on an access characteristic of the plurality of computing devices with respect to the actual storage areas assigned to the plurality of computing devices, executes rearrangement processing of transferring data stored in the actual storage areas to different actual storage areas in the physical storage devices of different response performance.Type: ApplicationFiled: January 24, 2014Publication date: June 5, 2014Applicant: Hitachi, Ltd.Inventors: NOBUHITO MORI, Masaaki Iwasaki, Junichi Hara
-
Publication number: 20140129524Abstract: A NAS device providing a snapshot function for executing CoW processing in multiple successive block units is provided, wherein upon restoring a file saved in a file system sharing from a snapshot, the speed for restoring files is enhanced by restoring only data blocks that have been changed within the data blocks constituting a file, to thereby reduce the amount of data being restored and cut down CoW processing. Upon restoring a file stored in file system sharing from a snapshot file, data blocks storing different data between the restore source file and the restore destination file are specified based on a differential map table and a differential block table, and only the specified data blocks are restored. Further, upon restoring data from a file other than the snapshot, the data blocks constituting the restore source file and the restore destination file are compared, and only the data blocks storing different data are restored.Type: ApplicationFiled: October 5, 2012Publication date: May 8, 2014Applicant: HITACHI, LTD.Inventors: Atsushi Ueoka, Takaki Nakamura, Masaaki Iwasaki
-
Publication number: 20140122919Abstract: The present invention comprises a management computer which exchanges information with storage apparatuses and host computers of primary sites and a secondary site via a management network and which manages a data processing performance and a data processing status of each of the sites, wherein, when any of the primary sites is subject to disaster, the management computer selects a normal primary site for which a data transfer time of a restoration target application is within a recovery time objective as a restoration site which possesses processing performance for restoring the application, and remote-copies restoration copy data, which exists at the secondary site, to the storage apparatus of the primary site selected as the restoration site, via a data network.Type: ApplicationFiled: October 30, 2012Publication date: May 1, 2014Applicant: Hitachi, Ltd.Inventors: Wataru Okada, Masaaki Iwasaki
-
Patent number: 8700573Abstract: The present invention relates to a migration of a file from a path denotative NAS server to an ID denotative NAS server. In a file management device a migration-use path denotative NAS access section obtains a file deposit location from the path denotative NAS server, selects a migration target file based on the deposit location, and sends a read request with the deposit location of the migration target file to the path denotative NAS server, so as to obtain the migration target file. A migration-use denotative NAS access section generates a write request with the migration target file, sends it to the ID denotative NAS servers, and writes the file therein. In addition, the migration-use ID denotative NAS access section registers a GUID received from the ID denotative NAS servers in a file name/GUID management table, together with the file name of the migration target file.Type: GrantFiled: May 21, 2012Date of Patent: April 15, 2014Assignee: Hitachi, Ltd.Inventors: Yutaka Enko, Masaaki Iwasaki, Yoji Nakatani
-
Patent number: 8683172Abstract: A computer system includes a server system and a storage system. The server system is configured to manage a plurality of virtual machines, each of which has a virtual machine interface. The storage system is configured to manage a plurality of virtual storage systems, each of which has a virtual storage interface. A first virtual machine is related to a first virtual storage system of the plurality of virtual storage systems. If the first virtual machine issues a first command to the first virtual storage system through a first virtual machine interface of the first virtual machine, the server system adds information of a first identifier, which is assigned to a first virtual storage interface of the first virtual storage system related to the first virtual machine, to the first command, and sends the first command to the storage system.Type: GrantFiled: April 6, 2011Date of Patent: March 25, 2014Assignee: Hitachi, Ltd.Inventors: Akiyoshi Hashimoto, Masaaki Iwasaki
-
Patent number: 8663432Abstract: A magnetron sputtering apparatus of the invention includes: a sputtering chamber in which a target can be opposed to an object to be subjected to film formation; a gas introduction port facing the sputtering chamber; a magnet provided outside the sputtering chamber and opposite to the target and being rotatable about a rotation center which is eccentric with respect to center of the magnet; a sensor configured to detect a circumferential position of the magnet in a plane of rotation of the magnet; and a controller configured to start voltage application to the target to cause electrical discharge in the sputtering chamber on the basis of the circumferential position of the rotating magnet and gas pressure distribution in the sputtering chamber.Type: GrantFiled: February 6, 2009Date of Patent: March 4, 2014Assignees: Shibaura Mechatronics Corporation, Sony DADC CorporationInventors: Masaaki Iwasaki, Yoshifumi Oda, Takehiro Sato
-
Patent number: 8645655Abstract: The present invention provides a technique of suitably configuring a decision criterion for determining a transfer destination layer in rearrangement processing according to a task type and operation status and preventing performance degradation caused by arranging task data requiring a high response to a lower layer. At least one computing device (or management computing device or each host computing device) of a plurality of computing devices configures rearrangement reference information showing whether an access characteristic related to a task executed on a plurality of host computing devices is considered as a decision criterion for transfer destination determination in rearrangement processing of transferring data between actual storage areas of physical storage devices of different response performance.Type: GrantFiled: September 27, 2011Date of Patent: February 4, 2014Assignee: Hitachi, Ltd.Inventors: Nobuhito Mori, Masaaki Iwasaki, Junichi Hara
-
Publication number: 20140004735Abstract: A card connector with a card insertion detection mechanism has a first movable terminal, and a second movable terminal. An abutting portion located on the first movable terminal is engageable with a card upon insertion to displace the first movable terminal from the second moveable terminal, and is disengageable from the card upon removal. A cam portion of the first movable terminal is positioned to contact the second movable terminal, and wipe with the second movable terminal.Type: ApplicationFiled: July 2, 2013Publication date: January 2, 2014Inventors: Junya Tsuji, Masaaki Iwasaki