Patents by Inventor Katsutoshi Asaki
Katsutoshi Asaki 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: 10599509Abstract: This management system for a computer system including a plurality of elements for which performance values are to be monitored generates one or more plans on the basis of: a performance value history of a specific bottleneck (an element that has been identified as the cause of a detected failure); management information that includes information indicating, for each countermeasure, the relation between a plurality of countermeasure attributes and a plurality of bottlenecks; and a countermeasure attribute corresponding to the specific bottleneck, and displays the one or more plans thus generated. Each of the displayed one or more plans includes one or more countermeasures. In each of the displayed one or more plans, each of the one or more countermeasures is classified into one of a plurality of countermeasure types.Type: GrantFiled: December 21, 2015Date of Patent: March 24, 2020Assignee: Hitachi, Ltd.Inventors: Yasuhiro Ishibashi, Katsutoshi Asaki, Yuri Hiraiwa, Yuuki Miyamoto
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Patent number: 10067673Abstract: A management system receives a job definition condition that defines a migration job corresponding to partial migration that is part of data migration for replacement from a replace source storage system to a replace target storage system. The management system selects one or more source volumes and creates a migration job for the one or more source volumes in accordance with the job definition condition. The migration job is a job in which, for each of the one or more source volumes, a target volume is created in the replace target storage system, and in which data is migrated from each of the one or more source volumes to a corresponding one of the one or more target volumes. The management system executes each of a plurality of migration jobs.Type: GrantFiled: September 29, 2014Date of Patent: September 4, 2018Assignee: Hitachi, Ltd.Inventors: Tetsuya Uehara, Akira Shirasu, Katsutoshi Asaki, Yasufumi Uchiyama
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Publication number: 20180181455Abstract: This management system for a computer system including a plurality of elements for which performance values are to be monitored generates one or more plans on the basis of: a performance value history of a specific bottleneck (an element that has been identified as the cause of a detected failure); management information that includes information indicating, for each countermeasure, the relation between a plurality of countermeasure attributes and a plurality of bottlenecks; and a countermeasure attribute corresponding to the specific bottleneck, and displays the one or more plans thus generated. Each of the displayed one or more plans includes one or more countermeasures. In each of the displayed one or more plans, each of the one or more countermeasures is classified into one of a plurality of countermeasure types.Type: ApplicationFiled: December 21, 2015Publication date: June 28, 2018Applicant: HITACHI, LTD.Inventors: Yasuhiro ISHIBASHI, Katsutoshi ASAKI, Yuri HIRAIWA, Yuuki MIYAMOTO
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Publication number: 20160364400Abstract: It is provided a management server comprising a memory, a processor configured to access to the memory, and a network interface through which the management server holds communication to/from a storage apparatus and a file server. The storage apparatus includes a storage device, which is divided into pages each having a determined capacity to store data. The file server is configured to manage, on a file-by-file basis, data that is stored in the storage apparatus. The processor is configured to: obtain an I/O count per unit time of access to pages which stores data contained in the file; and compare a policy applied to the file and imbalance in I/O to a part of the data contained in the file, and output a changed policy in the case where it is found that the policy applied to the file needs to be changed as a result of the comparison.Type: ApplicationFiled: June 13, 2014Publication date: December 15, 2016Inventors: Naoki Isomura, Katsutoshi Asaki, Junichi Hara, Takato Kusama
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Publication number: 20160357439Abstract: A management system receives a job definition condition that defines a migration job corresponding to partial migration that is part of data migration for replacement from a replace source storage system to a replace target storage system. The management system selects one or more source volumes and creates a migration job for the one or more source volumes in accordance with the job definition condition. The migration job is a job in which, for each of the one or more source volumes, a target volume is created in the replace target storage system, and in which data is migrated from each of the one or more source volumes to a corresponding one of the one or more target volumes. The management system executes each of a plurality of migration jobs.Type: ApplicationFiled: September 29, 2014Publication date: December 8, 2016Applicant: HITACHI, LTD.Inventors: Tetsuya UEHARA, Akira SHIRASU, Katsutoshi ASAKI, Yasufumi UCHIYAMA
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Patent number: 9411746Abstract: In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.Type: GrantFiled: May 8, 2015Date of Patent: August 9, 2016Assignee: Hitachi, Ltd.Inventors: Masayuki Yamamoto, Masataka Innan, Nobuhiko Ando, Takato Kusama, Nobuo Beniyama, Yoshiki Fukui, Katsutoshi Asaki
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Publication number: 20150261469Abstract: The present invention is provided to make effective use of a storage area, and to enhance user usability. A management apparatus determines a reallocation destination of each logical storage area on the basis of an access load on each logical storage area by a host computer and an allocation status of each logical storage area in a storage-destination storage tier. A monitoring mode selection part for selecting any one of multiple monitoring modes selects a prescribed monitoring mode from the multiple monitoring modes on the basis of allocation time information related to a time at which each logical storage area is allocated to an allocation-destination storage tier.Type: ApplicationFiled: April 1, 2015Publication date: September 17, 2015Applicant: Hitachi, Ltd.Inventors: Takahiko TOMIDA, Katsutoshi ASAKI, Takato KUSAMA
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Publication number: 20150248254Abstract: A higher-level apparatus acquires apparatus identification information identifying a physical storage apparatus including physical areas allocated to a virtual volume. The higher-level apparatus may typically be a host such as the one described above, or may be an apparatus (a switch apparatus, for example) interposed between a host and a physical storage apparatus. Based on the apparatus identification information, the higher-level apparatus selects an access path that is connected directly to the physical storage apparatus including the physical areas allocated to the access destination virtual area in the VVOL and does not extend through any other physical storage apparatus. Using the selected access path, the higher-level apparatus transmits an access request designating the address of the access destination virtual area.Type: ApplicationFiled: March 25, 2013Publication date: September 3, 2015Inventors: Naoyuki Matsunaga, Katsutoshi Asaki, Hideo Takahashi, Takato Kusama, Yoshitaka Tokushou
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Publication number: 20150242329Abstract: In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.Type: ApplicationFiled: May 8, 2015Publication date: August 27, 2015Applicant: Hitachi, Ltd.Inventors: Masayuki YAMAMOTO, Masataka INNAN, Nobuhiko ANDO, Takato KUSAMA, Nobuo BENIYAMA, Yoshiki FUKUI, Katsutoshi ASAKI
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Patent number: 9086947Abstract: The present invention provides a technique to efficiently rearrange data in actual regions. A management system acquires load lumped region variation information (access distribution variation amount) indicative of a variation in the position of a virtual region in a virtual volume in a storage subsystem which region corresponds to a hot spot. Then, based on the load lumped region variation information, the management system determines a load position unvaried hour(s) indicative of a hour(s) in which the position of the virtual region corresponding to the hot spot is almost or perfectly unvaried (the hour(s) in which the position of the hot spot is stable). The management system then displays the load position unvaried hour(s) on a display device.Type: GrantFiled: January 24, 2013Date of Patent: July 21, 2015Assignee: HITACHI, LTD.Inventors: Yuuki Miyamoto, Katsutoshi Asaki
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Patent number: 9058125Abstract: In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.Type: GrantFiled: January 16, 2014Date of Patent: June 16, 2015Assignee: Hitachi, Ltd.Inventors: Masayuki Yamamoto, Masataka Innan, Nobuhiko Ando, Takato Kusama, Nobuo Beniyama, Yoshiki Fukui, Katsutoshi Asaki
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Patent number: 9026759Abstract: The present invention is provided to make effective use of a storage area, and to enhance user usability. A management apparatus determines a reallocation destination of each logical storage area on the basis of an access load on each logical storage area by a host computer and an allocation status of each logical storage area in a storage-destination storage tier. A monitoring mode selection part for selecting any one of multiple monitoring modes selects a prescribed monitoring mode from the multiple monitoring modes on the basis of allocation time information related to a time at which each logical storage area is allocated to an allocation-destination storage tier.Type: GrantFiled: November 21, 2011Date of Patent: May 5, 2015Assignee: Hitachi, Ltd.Inventors: Takahiko Tomida, Katsutoshi Asaki, Takato Kusama
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Patent number: 8850088Abstract: A computer system includes a server using a virtual volume (virtual logical volume) shared by a plurality of storage apparatuses. A management system managing the computer system accepts a selection of a first storage apparatus to be a determination target from among the storage apparatuses, performs a first determination of whether a first access path including the first storage apparatus exists or not. If the first access path exists, the management system performs a second determination of whether or not the first access path is an active access path used by the server for accessing the storage area (the storage area of the storage apparatus) assigned to a part of the virtual volume used by the server, and determines whether the first storage apparatus can be stopped or not on the basis of a result of the first determination or a result of the second determination. The access path is a path from the server to one of the storage apparatuses.Type: GrantFiled: April 18, 2012Date of Patent: September 30, 2014Assignee: Hitachi, Ltd.Inventors: Yuuki Miyamoto, Katsutoshi Asaki
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Publication number: 20140136780Abstract: In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.Type: ApplicationFiled: January 16, 2014Publication date: May 15, 2014Applicant: Hitachi, Ltd.Inventors: MASAYUKI YAMAMOTO, MASATAKA INNAN, NOBUHIKO ANDO, TAKATO KUSAMA, NOBUO BENIYAMA, YOSHIKI FUKUI, KATSUTOSHI ASAKI
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Patent number: 8656136Abstract: In the computer system, a storage system provides a storage level virtual volume based on thin provisioning technology, to a physical server on which a virtual machine is defined. The storage system releases the area of the logical volume corresponding to the storage level virtual volume accessed by a virtual machine which is specified to be deleted, on the basis of storage level virtual volume conversion information which is managed by the storage system.Type: GrantFiled: February 5, 2010Date of Patent: February 18, 2014Assignee: Hitachi, Ltd.Inventors: Masayuki Yamamoto, Masataka Innan, Nobuhiko Ando, Takato Kusama, Nobuo Beniyama, Yoshiki Fukui, Katsutoshi Asaki
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Publication number: 20130282935Abstract: A computer system includes a server using a virtual volume (virtual logical volume) shared by a plurality of storage apparatuses. A management system managing the computer system accepts a selection of a first storage apparatus to be a determination target from among the storage apparatuses, performs a first determination of whether a first access path including the first storage apparatus exists or not. If the first access path exists, the management system performs a second determination of whether or not the first access path is an active access path used by the server for accessing the storage area (the storage area of the storage apparatus) assigned to a part of the virtual volume used by the server, and determines whether the first storage apparatus can be stopped or not on the basis of a result of the first determination or a result of the second determination. The access path is a path from the server to one of the storage apparatuses.Type: ApplicationFiled: April 18, 2012Publication date: October 24, 2013Applicant: HITACHI, LTD.Inventors: Yuuki Miyamoto, Katsutoshi Asaki
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Patent number: 8533419Abstract: The virtual volume is a virtual logical volume that conforms to Thin Provisioning, and is a logical volume configured from a plurality of virtual areas and used by a plurality of applications. In a case where the storage apparatus receives a write request comprising write-destination information for identifying a write-destination virtual area in the virtual volume, and, in addition, the write-destination virtual area is an unallocated virtual area, the storage apparatus selects a medium, which corresponds to the write to the write-destination virtual area and/or the identification information of the source of this write, from a plurality of media, which have different performances and which are each configured from two or more real areas, and allocates a real area from the selected medium to the write-destination virtual area.Type: GrantFiled: September 11, 2012Date of Patent: September 10, 2013Assignee: Hitachi, Ltd.Inventors: Katsutoshi Asaki, Nobuo Beniyama, Takato Kusama
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Publication number: 20130132696Abstract: The present invention is provided to make effective use of a storage area, and to enhance user usability. A management apparatus determines a reallocation destination of each logical storage area on the basis of an access load on each logical storage area by a host computer and an allocation status of each logical storage area in a storage-destination storage tier. A monitoring mode selection part for selecting any one of multiple monitoring modes selects a prescribed monitoring mode from the multiple monitoring modes on the basis of allocation time information related to a time at which each logical storage area is allocated to an allocation-destination storage tier.Type: ApplicationFiled: November 21, 2011Publication date: May 23, 2013Inventors: Takahiko Tomida, Katsutoshi Asaki, Takato Kusama
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Patent number: 8386711Abstract: The present invention provides a technique to efficiently rearrange data in actual regions. A management system acquires load lumped region variation information (access distribution variation amount) indicative of a variation in the position of a virtual region in a virtual volume in a storage subsystem which region corresponds to a hot spot. Then, based on the load lumped region variation information, the management system determines a load position unvaried hour(s) indicative of a hour(s) in which the position of the virtual region corresponding to the hot spot is almost or perfectly unvaried (the hour(s) in which the position of the hot spot is stable). The management system then displays the load position unvaried hour(s) on a display device (see FIG. 19).Type: GrantFiled: August 10, 2010Date of Patent: February 26, 2013Assignee: Hitachi, Ltd.Inventors: Yuuki Miyamoto, Katsutoshi Asaki
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Patent number: 8386636Abstract: A prediction method for predicting a computer-resource usage amount with the use of a service call relation to be extracted from a business process definition. A resource allocation method includes, before adding a new business process to the system, steps of calculating the computer-resource predicted usage amount by using a computer-resource usage amount prediction step and of allocating a computer, as a new service execution computer, to a service execution computer whose computer-resource predicted usage amount has exceeded a predetermined value, the computer being different from the service execution computer.Type: GrantFiled: November 16, 2006Date of Patent: February 26, 2013Assignee: Hitachi, Ltd.Inventors: Katsutoshi Asaki, Nobuyuki Yamamoto, Mitsunobu Tasaka, Jun Yoshida