Patents by Inventor Hideo Ohata
Hideo Ohata 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).
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Patent number: 10282095Abstract: Proposed are a method and a device for managing the performance of a storage apparatus which uses a combination of different types of drive devices which mutually have different limits as its storage medium so that measures can be systematically taken against problems that may arise in the future as a result of the drive devices reaching their limit. Based on a premise of being able to tier two or more types of storage mediums which have mutually different rewriting limits and response performances and migrate data between the respective tiers according to the response performance, a performance management device estimates a decrement of a storage capacity pursuant to each of the two or more types of storage mediums reaching a rewriting limit, estimates a performance influence on the virtual volume and a timing of occurrence, and displays information related to the estimated performance influence and the timing of occurrence.Type: GrantFiled: March 9, 2016Date of Patent: May 7, 2019Assignee: Hitachi, Ltd.Inventors: Kazuya Sato, Hideo Ohata, Hironobu Sakata, Katsutaka Inoue
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Publication number: 20180210656Abstract: Proposed are a method and a device for managing the performance of a storage apparatus which uses a combination of different types of drive devices which mutually have different limits as its storage medium so that measures can be systematically taken against problems that may arise in the future as a result of the drive devices reaching their limit. Based on a premise of being able to tier two or more types of storage mediums which have mutually different rewriting limits and response performances and migrate data between the respective tiers according to the response performance, a performance management device estimates a decrement of a storage capacity pursuant to each of the two or more types of storage mediums reaching a rewriting limit, estimates a performance influence on the virtual volume and a timing of occurrence, and displays information related to the estimated performance influence and the timing of occurrence.Type: ApplicationFiled: March 9, 2016Publication date: July 26, 2018Applicant: HITACHI, LTD.Inventors: Kazuya SATO, Hideo OHATA, Hironobu SAKATA, Katsutaka INOUE
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Patent number: 9626110Abstract: Multiple storage apparatuses each provide a virtual logical volume composed of multiple logical pages to a host computer. A management computer determines a target logical page to which data are migrated to achieve a volume goal performance on the basis of access path information that can identify a storage apparatus that receives an I/O request in which the virtual logical volume is specified, an actual volume response performance, the volume goal performance to be attained, a page response performance of the logical page, and storage destination information that can identify a storage apparatus in which a storage area allocated to the logical page is present, and migrates data of the logical page between storage apparatuses.Type: GrantFiled: February 22, 2013Date of Patent: April 18, 2017Assignee: Hitachi, Ltd.Inventors: Hironobu Sakata, Hideo Ohata, Naoshi Maniwa
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Patent number: 9213753Abstract: The management system includes pair management information for managing pair groups and resource management information for managing resources allocated to the pair groups. The management system monitors data transfer latencies in asynchronous remote copy in the pair groups. In a case where data transfer latencies in a first pair group of the pair groups reach a threshold, the management system selects a first asynchronous remote copy pair from the first pair group with reference to the pair management information. The management system selects a second pair group allocated resources different from resources allocated to the first pair group as a candidate migration destination of the first asynchronous remote copy pair with reference to the resource management information.Type: GrantFiled: November 18, 2013Date of Patent: December 15, 2015Assignee: HITACHI, LTD.Inventors: Hiroko Fujii, Hideo Ohata
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Publication number: 20150248245Abstract: Multiple storage apparatuses each provide a virtual logical volume composed of multiple logical pages to a host computer. A management computer determines a target logical page to which data are migrated to achieve a volume goal performance on the basis of access path information that can identify a storage apparatus that receives an I/O request in which the virtual logical volume is specified, an actual volume response performance, the volume goal performance to be attained, a page response performance of the logical page, and storage destination information that can identify a storage apparatus in which a storage area allocated to the logical page is present, and migrates data of the logical page between storage apparatuses.Type: ApplicationFiled: February 22, 2013Publication date: September 3, 2015Inventors: Hironobu Sakata, Hideo Ohata, Naoshi Maniwa
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Publication number: 20150142738Abstract: The management system includes pair management information for managing pair groups and resource management information for managing resources allocated to the pair groups. The management system monitors data transfer latencies in asynchronous remote copy in the pair groups. In a case where data transfer latencies in a first pair group of the pair groups reach a threshold, the management system selects a first asynchronous remote copy pair from the first pair group with reference to the pair management information. The management system selects a second pair group allocated resources different from resources allocated to the first pair group as a candidate migration destination of the first asynchronous remote copy pair with reference to the resource management information.Type: ApplicationFiled: November 18, 2013Publication date: May 21, 2015Applicant: Hitachi, Ltd.Inventors: Hiroko Fujii, Hideo Ohata
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Patent number: 8843613Abstract: An information processing system 1 configured to include a plurality of storage monitoring servers 119 that manage performance information related to performance in a storage system 20 including a storage apparatus 236 and a host server 111 that accesses the storage apparatus 236 and monitoring information to be monitored in the storage system 20. The storage monitoring servers 119 acquire performance information and monitoring information to determine the storage monitoring server 119 to be responsible for managing individual performance information and individual monitoring information based on the acquired performance information and monitoring information, and transfers, according to a distribution plan determined by the storage monitoring servers 119, individual performance information and individual monitoring information to a storage monitoring server 119 responsible for managing individual performance information and individual monitoring information.Type: GrantFiled: December 18, 2009Date of Patent: September 23, 2014Assignee: Hitachi, Ltd.Inventors: Takeshi Ozaki, Hideo Ohata
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Patent number: 8706963Abstract: The present invention provides a configuration which can realize both two objects of prevention of performance deterioration and a reduction in storage management cost and shift a volume to a storage device which supports a hierarchical pool. To provide the configuration, a storage managing system acquires access information indicating an access load to a logical volume in a storage subsystem from a device file in a host server as access information in a page unit. The storage managing system acquires, from a storage subsystem having a hierarchical pool function, information concerning the configuration and a capacity of hierarchies of the storage subsystem. A capacity of the logical volume is calculated from the number of pages and a page unit capacity indicated by the access information.Type: GrantFiled: June 2, 2011Date of Patent: April 22, 2014Assignee: Hitachi, Ltd.Inventors: Hiromichi Yamagiwa, Naoshi Maniwa, Hideo Ohata, Yasufumi Uchiyama
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Patent number: 8650377Abstract: The present invention provides a technique for arranging a virtual logical volume group for satisfying target response performance and realizing a cost reduction. For this purpose, in the present invention, in a storage managing system which manages a storage subsystem comprising in a pool using plural storage devices (hierarchies) having different performances and provides plural virtual logical volumes from the pool, the plural virtual logical volumes are classified into plural groups on the basis of information concerning target response performance concerning each of the plural virtual logical volumes such that each of the plural virtual logical volumes satisfies the target response performance. A new pool is allocated to each of the plural groups of the virtual logical volumes. Further, information indicating a correspondence relation between the pool and the virtual logical volumes included in the groups is generated and the information is output.Type: GrantFiled: June 2, 2011Date of Patent: February 11, 2014Assignee: Hitachi, Ltd.Inventors: Naoshi Maniwa, Hideo Ohata
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Patent number: 8612645Abstract: To appropriately manage configuration information acquired from a storage system for the purpose of performance management, etc., an information processing apparatus managing the configuration information, i.e.Type: GrantFiled: February 1, 2013Date of Patent: December 17, 2013Assignee: Hitachi, Ltd.Inventors: Hirokazu Uchi, Hideo Ohata
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Patent number: 8549050Abstract: In a storage network including at least a computer system, at least an external storage and at least a network system for communication of input/output data between the computer system and the external storage, a method of collecting the performance data on the network system and the software operated on the network system, in which the range or degree of data collection is automatically adjusted as required based on the performance data collected.Type: GrantFiled: September 22, 2011Date of Patent: October 1, 2013Assignee: Hitachi, Ltd.Inventors: Hideo Ohata, Tatsundo Aoshima, Kei Takeda, Nobuyuki Yamashita, Takato Kusama
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Patent number: 8489739Abstract: Provided is a method of controlling a computer system which includes a host computer and one or more storage systems coupled to the host computer via a network, wherein the first processor executes an application job which executes data I/O in a logical storage area; the second processor executes a management job which executes the data I/O in the logical storage area; the method comprising: judging whether at lest one of resources of the computer system used for the data I/O of the application job is also used for the data I/O of the executed management job when performance of the application job drops below a predetermined threshold; and displaying information indicating the executed management job when it is judged that at least one of the resources used for the data I/O of the application job is also used for the data I/O of the executed management job.Type: GrantFiled: March 5, 2007Date of Patent: July 16, 2013Assignee: Hitachi, Ltd.Inventors: Tatsuya Hisatomi, Hideo Ohata, Tadashi Numanoi, Akira Mineo
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Patent number: 8443362Abstract: Provided is a computer system including a host computer, a storage system, and a management computer, in which the storage system receives data I/O request to virtual logical volumes and data I/O request to one or more real logical volumes, each of the virtual logical volumes is allocated to one of one or more pools, storage areas of physical storage systems are allocated to all storage areas defined as the pools, and when a performance problem has occurred in one of the virtual logical volumes, the management computer selects the one of the virtual logical volumes, and selects a pool other than the pool to which the selected virtual logical volume is allocated and the real logical volumes as a migration destination of the selected virtual logical volume, to thereby prevent a performance problem from being caused by interference among the virtual logical volumes sharing the pool.Type: GrantFiled: January 10, 2008Date of Patent: May 14, 2013Assignee: Hitachi, Ltd.Inventors: Katsutaka Inoue, Shuji Fujino, Hideo Ohata, Tadashi Numanoi
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Patent number: 8392676Abstract: A management method and management apparatus that can prevent deterioration of response performance of an entire system is suggested.Type: GrantFiled: July 14, 2010Date of Patent: March 5, 2013Assignee: Hitachi, Ltd.Inventors: Tomonori Yata, Hideo Ohata, Hidetaka Sasaki
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Patent number: 8386669Abstract: To appropriately manage configuration information acquired from a storage system for the purpose of performance management, etc., an information processing apparatus managing the configuration information, i.e.Type: GrantFiled: February 7, 2012Date of Patent: February 26, 2013Assignee: Hitachi, Ltd.Inventors: Hirokazu Uchi, Hideo Ohata
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Publication number: 20120311292Abstract: The present invention provides a technique for arranging a virtual logical volume group for satisfying target response performance and realizing a cost reduction. For this purpose, in the present invention, in a storage managing system which manages a storage subsystem comprising in a pool using plural storage devices (hierarchies) having different performances and provides plural virtual logical volumes from the pool, the plural virtual logical volumes are classified into plural groups on the basis of information concerning target response performance concerning each of the plural virtual logical volumes such that each of the plural virtual logical volumes satisfies the target response performance. A new pool is allocated to each of the plural groups of the virtual logical volumes. Further, information indicating a correspondence relation between the pool and the virtual logical volumes included in the groups is generated and the information is output.Type: ApplicationFiled: June 2, 2011Publication date: December 6, 2012Applicant: HITACHI, LTD.Inventors: Naoshi Maniwa, Hideo Ohata
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Publication number: 20120311260Abstract: The present invention provides a configuration which can realize both two objects of prevention of performance deterioration and a reduction in storage management cost and shift a volume to a storage device which supports a hierarchical pool. To provide the configuration, a storage managing system acquires access information indicating an access load to a logical volume in a storage subsystem from a device file in a host server as access information in a page unit. The storage managing system acquires, from a storage subsystem having a hierarchical pool function, information concerning the configuration and a capacity of hierarchies of the storage subsystem. A capacity of the logical volume is calculated from the number of pages and a page unit capacity indicated by the access information.Type: ApplicationFiled: June 2, 2011Publication date: December 6, 2012Applicant: HITACHI, LTD.Inventors: Hiromichi Yamagiwa, Naoshi Maniwa, Hideo Ohata, Yasufumi Uchiyama
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Publication number: 20120259814Abstract: According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.Type: ApplicationFiled: June 21, 2012Publication date: October 11, 2012Applicant: HITACHI, LTD.Inventors: Hidetaka Sasaki, Hideo Ohata
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Patent number: 8255518Abstract: Provided is a computer system including a host computer, a storage system connected to the host computer via a network, and a management computer connected to the host computer and the storage system. The management computer obtains performance information indicating performance of resources contained in at least one of the host computer, the storage system, and the network, and obtains pieces of performance information of the resources in a sequence set based on already obtained performance information. This permits solving a problem of the computer system that, when the amount of performance information to be obtained is large. A long time is necessary for detecting a performance problem based on the performance information and investigating its causes.Type: GrantFiled: January 17, 2007Date of Patent: August 28, 2012Assignee: Hitachi, Ltd.Inventors: Satomi Yahiro, Hidetaka Sasaki, Hideo Ohata
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Patent number: 8245272Abstract: According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.Type: GrantFiled: January 31, 2008Date of Patent: August 14, 2012Assignee: Hitachi, Ltd.Inventors: Hidetaka Sasaki, Hideo Ohata