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).

  • Patent number: 10282095
    Abstract: 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: Grant
    Filed: March 9, 2016
    Date of Patent: May 7, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Kazuya Sato, Hideo Ohata, Hironobu Sakata, Katsutaka Inoue
  • Publication number: 20180210656
    Abstract: 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: Application
    Filed: March 9, 2016
    Publication date: July 26, 2018
    Applicant: HITACHI, LTD.
    Inventors: Kazuya SATO, Hideo OHATA, Hironobu SAKATA, Katsutaka INOUE
  • Patent number: 9626110
    Abstract: 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: Grant
    Filed: February 22, 2013
    Date of Patent: April 18, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Hironobu Sakata, Hideo Ohata, Naoshi Maniwa
  • Patent number: 9213753
    Abstract: 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: Grant
    Filed: November 18, 2013
    Date of Patent: December 15, 2015
    Assignee: HITACHI, LTD.
    Inventors: Hiroko Fujii, Hideo Ohata
  • Publication number: 20150248245
    Abstract: 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: Application
    Filed: February 22, 2013
    Publication date: September 3, 2015
    Inventors: Hironobu Sakata, Hideo Ohata, Naoshi Maniwa
  • Publication number: 20150142738
    Abstract: 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: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Hiroko Fujii, Hideo Ohata
  • Patent number: 8843613
    Abstract: 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: Grant
    Filed: December 18, 2009
    Date of Patent: September 23, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Ozaki, Hideo Ohata
  • Patent number: 8706963
    Abstract: 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: Grant
    Filed: June 2, 2011
    Date of Patent: April 22, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Hiromichi Yamagiwa, Naoshi Maniwa, Hideo Ohata, Yasufumi Uchiyama
  • Patent number: 8650377
    Abstract: 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: Grant
    Filed: June 2, 2011
    Date of Patent: February 11, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Naoshi Maniwa, Hideo Ohata
  • Patent number: 8612645
    Abstract: 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: Grant
    Filed: February 1, 2013
    Date of Patent: December 17, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Hirokazu Uchi, Hideo Ohata
  • Patent number: 8549050
    Abstract: 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: Grant
    Filed: September 22, 2011
    Date of Patent: October 1, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Ohata, Tatsundo Aoshima, Kei Takeda, Nobuyuki Yamashita, Takato Kusama
  • Patent number: 8489739
    Abstract: 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: Grant
    Filed: March 5, 2007
    Date of Patent: July 16, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Hisatomi, Hideo Ohata, Tadashi Numanoi, Akira Mineo
  • Patent number: 8443362
    Abstract: 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: Grant
    Filed: January 10, 2008
    Date of Patent: May 14, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Katsutaka Inoue, Shuji Fujino, Hideo Ohata, Tadashi Numanoi
  • Patent number: 8392676
    Abstract: A management method and management apparatus that can prevent deterioration of response performance of an entire system is suggested.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: March 5, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Tomonori Yata, Hideo Ohata, Hidetaka Sasaki
  • Patent number: 8386669
    Abstract: 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: Grant
    Filed: February 7, 2012
    Date of Patent: February 26, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Hirokazu Uchi, Hideo Ohata
  • Publication number: 20120311292
    Abstract: 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: Application
    Filed: June 2, 2011
    Publication date: December 6, 2012
    Applicant: HITACHI, LTD.
    Inventors: Naoshi Maniwa, Hideo Ohata
  • Publication number: 20120311260
    Abstract: 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: Application
    Filed: June 2, 2011
    Publication date: December 6, 2012
    Applicant: HITACHI, LTD.
    Inventors: Hiromichi Yamagiwa, Naoshi Maniwa, Hideo Ohata, Yasufumi Uchiyama
  • Publication number: 20120259814
    Abstract: 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: Application
    Filed: June 21, 2012
    Publication date: October 11, 2012
    Applicant: HITACHI, LTD.
    Inventors: Hidetaka Sasaki, Hideo Ohata
  • Patent number: 8255518
    Abstract: 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: Grant
    Filed: January 17, 2007
    Date of Patent: August 28, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Satomi Yahiro, Hidetaka Sasaki, Hideo Ohata
  • Patent number: 8245272
    Abstract: 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: Grant
    Filed: January 31, 2008
    Date of Patent: August 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Hidetaka Sasaki, Hideo Ohata