Patents by Inventor Yukinori Sakashita

Yukinori Sakashita 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).

  • Publication number: 20120137099
    Abstract: This storage system modifies the migration plan in accordance with the state of the migration destination when a plurality of volumes are migrated all at once. Migration-source volumes are migrated collectively to volumes inside the migration-destination storage apparatus. The user can make settings related to migration-source volumes and migration-destination volumes in a migration plan, and can establish a mid-process control plan for modifying the migration plan in the middle of processing. If a failure occurs in the migration-destination storage apparatus subsequent to the commencement of data migration processing, a processing method controller either cancels or temporarily halts the data migration processing, or changes the migration destination, on the basis of the mid-process control plan. When changing the migration destination, a previously selected alternate storage apparatus is selected as the new migration-destination storage apparatus.
    Type: Application
    Filed: February 8, 2012
    Publication date: May 31, 2012
    Inventors: Tsukasa SHIBAYAMA, Wataru Okada, Yukinori Sakashita, Yuri Hiraiwa, Masahide Sato
  • Patent number: 8185582
    Abstract: In order to provide support for a system to operate in a manner appropriate for system requests desired by a user, a management server acquires functions corresponding to system requests acquired using a user interface using a second table for storing a correspondence relationship of functions provided by one or more managed storage devices and system requests occurring at the storage system, simulates whether or not implementation of the system requests is possible from the acquired functions and functions corresponding to the system requests occurring at the current storage system acquired using a third table for storing information for functions provided by the one or more storage devices, and notifies the one or more storage devices of instructions to set functions corresponding to the system requests to valid based on the simulation results of this simulation.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: May 22, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Hiromichi Yamagiwa, Manabu Obana, Yukinori Sakashita
  • Publication number: 20120124287
    Abstract: A data processing system includes a first storage system configured with a virtual logical volume that includes a dynamically expandable volume, a second storage system coupled to the first storage system through a data copy network, a host computer configured to input data to the virtual logical volume, and a management server coupled to the host computer, configured to manage the virtual logical volume.
    Type: Application
    Filed: January 26, 2012
    Publication date: May 17, 2012
    Inventors: TSUKASA SHIBAYAMA, Wataru Okada, Yukinori Sakashita, Yuri Hiraiwa, Masahide Sato
  • Publication number: 20120089797
    Abstract: A storage apparatus includes a storage unit for storing data read/written by a host computer and provides the host computer with a storage area of the storage unit as one or more volumes. The storage management computer includes a first memory for storing task information including contents of an operation process performed on the storage apparatus, as well as a scheduled starting time and scheduled termination time of a process, and, in the case where first task information is stored in the first memory, when resources used in the process of second task information stored in the first memory are the same as resources used in the process of the first task information, the storage management computer computes times required for executing the first task information and the second task information, based on a time during which the processes of the first and second task information conflict with each other.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 12, 2012
    Inventors: Tsukasa Shibayama, Yukinori Sakashita, Masayasu Asano
  • Patent number: 8140802
    Abstract: This storage system modifies the migration plan in accordance with the state of the migration destination when a plurality of volumes are migrated all at once. Migration-source volumes are migrated collectively to volumes inside the migration-destination storage apparatus. The user can make settings related to migration-source volumes and migration-destination volumes in a migration plan, and can establish a mid-process control plan for modifying the migration plan in the middle of processing. If a failure occurs in the migration-destination storage apparatus subsequent to the commencement of data migration processing, a processing method controller either cancels or temporarily halts the data migration processing, or changes the migration destination, on the basis of the mid-process control plan. When changing the migration destination, a previously selected alternate storage apparatus is selected as the new migration-destination storage apparatus.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: March 20, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tsukasa Shibayama, Wataru Okada, Yukinori Sakashita, Yuri Hiraiwa, Masahide Sato
  • Patent number: 8127094
    Abstract: When migrating data stored in a storage region assigned to a volume to another storage region, the connection status of the host computer and volume is confirmed. When the host computer and volume are connected, the maximum capacity of the volume requested by the host computer is reserved so that it is exclusively secured in another storage region to which data is to be migrated, and when the host computer and volume are not connected, the current capacity of the volume is reserved so that it is exclusively secured in another storage region.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 28, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tsukasa Shibayama, Wataru Okada, Yukinori Sakashita, Yuri Hiraiwa, Masahide Sato
  • Patent number: 8127092
    Abstract: Implementing migration of a computer or data in consideration of the performance of an entire computer system is disclosed. A management computer is coupled to a computer 41000 and to a storage system 51000 having RAID groups 51220 and 51221 for providing logical volumes 51210 to 51212. When a predetermined event occurs at a resource on an I/O path from the computer 41000 to the RAID groups 51220 and 51221, the applicable I/O path is extracted. Moreover, it is determined whether or not there is another I/O path used by another computer and another logical volume, which does not share any resources and does not use the extracted I/O path. When there is the other I/o path, it is determined whether or not a performance of a resource contained therein remains within a preset range of a threshold requirement in the case of migrating the computer 41000 and the logical volumes 51210 to 51212 to the other I/O path. If the performance falls within the range, the other I/O path is determined as a migration destination.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: February 28, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Jun Nakajima, Yukinori Sakashita
  • Publication number: 20120030442
    Abstract: A management system, coupled to a computer system including one or more types of storage apparatus, stores management information. The management information includes: (a) information containing, for each request by an administrator, information indicating a storage function (a function of a storage apparatus) required in order to achieve a function satisfying the administrator request; and (b) information containing, for each storage apparatus, information indicating storage functions. The management system: (A) receives a request of an administrator; (B) identifies an implementation pattern including a storage apparatus having a storage function required to achieve a function satisfying the received administrator request, on the basis of the information (a) and (b), and (C) performs setup in order to achieve a function satisfying the received administrator request, in respect of any of the identified one or more implementation patterns.
    Type: Application
    Filed: July 26, 2010
    Publication date: February 2, 2012
    Applicant: HITACHI, LTD.
    Inventors: Yuki Nakanishi, Yukinori Sakashita
  • Publication number: 20110252213
    Abstract: This storage system modifies the migration plan in accordance with the state of the migration destination when a plurality of volumes are migrated all at once. Migration-source volumes are migrated collectively to volumes inside the migration-destination storage apparatus. The user can make settings related to migration-source volumes and migration-destination volumes in a migration plan, and can establish a mid-process control plan for modifying the migration plan in the middle of processing. If a failure occurs in the migration-destination storage apparatus subsequent to the commencement of data migration processing, a processing method controller either cancels or temporarily halts the data migration processing, or changes the migration destination, on the basis of the mid-process control plan. When changing the migration destination, a previously selected alternate storage apparatus is selected as the new migration-destination storage apparatus.
    Type: Application
    Filed: June 24, 2011
    Publication date: October 13, 2011
    Inventors: Tsukasa SHIBAYAMA, Wataru OKADA, Yukinori SAKASHITA, Yuri HIRAIWA, Masahide SATO
  • Patent number: 8024603
    Abstract: The invention is directed to a storage system including a storage subsystem providing a data storage service to a host computer, and a management device managing the storage subsystem. The management device issues a command to a controller in the storage subsystem for migrating data on a migration-source volume to a migration-destination volume in accordance with a predetermined task. When the migration-destination volume is not available for use for some reason, and when the data migration is not completed normally, the management device searches an alternative volume in accordance with migration-destination requirements including essential and arbitrary requirements, and then issues a command for data migration to thus found alternative volume. With such a configuration, even if a migration-destination volume is not available for use for some reason during data migration, any other volume can be used as a migration destination in accordance with the migration-destination requirement(s).
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: September 20, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yasutaka Kono, Yukinori Sakashita
  • Publication number: 20110225117
    Abstract: A storage system includes a plurality of types of media and a controller, provides a plurality of logical volumes, and performs a reallocation process for migrating data specified in accordance with a reallocation policy from media in which this data is stored to media of different types from the media. A management system searches for a logical volume that conforms to a migration policy, which is a condition under which the reallocation process is considered ineffective, from a reallocation group, which is a group of one or more logical volumes subjected to a target of a reallocation process, and causes the storage system to transfer data in the logical volume that is discovered to outside of the reallocation group.
    Type: Application
    Filed: May 14, 2010
    Publication date: September 15, 2011
    Inventors: Yuki NAKANISHI, Yasutaka Kono, Yukinori Sakashita
  • Publication number: 20110219271
    Abstract: A computer system functions to dynamically assign the storage capacity to the host computer. If an event such as a failure occurs in the logical resources, the performance requirements of the virtual volumes must be guaranteed to the host computer. Accordingly, the computer system comprising a storage apparatus, wherein the storage apparatus detects the occurrence of an event in the logical resources, compares the performance of the logical resources where the event occurred with the performance of the virtual volumes and, in accordance with the result of the comparison, sets the correspondence relationship of the virtual volumes to the logical resources.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 8, 2011
    Applicant: HITACHI, LTD.
    Inventors: Satoshi Kaneko, Yukinori Sakashita
  • Publication number: 20110202742
    Abstract: When migrating data stored in a storage region assigned to a volume to another storage region, the connection status of the host computer and volume is confirmed. When the host computer and volume are connected, the maximum capacity of the volume requested by the host computer is reserved so that it is exclusively secured in another storage region to which data is to be migrated, and when the host computer and volume are not connected, the current capacity of the volume is reserved so that it is exclusively secured in another storage region.
    Type: Application
    Filed: April 28, 2011
    Publication date: August 18, 2011
    Inventors: Tsukasa SHIBAYAMA, Wataru OKADA, Yukinori SAKASHITA, Yuri HIRAIWA, Masahide SATO
  • Patent number: 7996640
    Abstract: This storage system modifies the migration plan in accordance with the state of the migration destination when a plurality of volumes are migrated all at once. Migration-source volumes are migrated collectively to volumes inside the migration-destination storage apparatus. The user can make settings related to migration-source volumes and migration-destination volumes in a migration plan, and can establish a mid-process control plan for modifying the migration plan in the middle of processing. If a failure occurs in the migration-destination storage apparatus subsequent to the commencement of data migration processing, a processing method controller either cancels or temporarily halts the data migration processing, or changes the migration destination, on the basis of the mid-process control plan. When changing the migration destination, a previously selected alternate storage apparatus is selected as the new migration-destination storage apparatus.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: August 9, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tsukasa Shibayama, Wataru Okada, Yukinori Sakashita, Yuri Hiraiwa, Masahide Sato
  • Publication number: 20110191639
    Abstract: Provided are a storage system and its control method having superb functionality of being able to notify an administrator of the extent of impact of a pool fault in an easy and prompt manner. The foregoing storage system and its control method manage a storage area provided by a storage medium by dividing it into multiple pools, provide a virtual logical device to a host system, dynamically allocate a storage area to the logical device according to a data write request from the host system for writing data into the logical device, move data that was written into the logical device to another pool according to the access status from host system to such data, identify, when a fault occurs in any one of the pools, an extent of impact of the fault based on the correspondence relationship of the logical device and the pool, and notify the identified extent of impact of the fault to an administrator.
    Type: Application
    Filed: September 2, 2009
    Publication date: August 4, 2011
    Applicant: HITACHI, LTD.
    Inventors: Daisuke Shinohara, Yukinori Sakashita
  • Publication number: 20110125938
    Abstract: In order to provide support for a system to operate in a manner appropriate for system requests desired by a user, a management server acquires functions corresponding to system requests acquired using a user interface using a second table for storing a correspondence relationship of functions provided by one or more managed storage devices and system requests occurring at the storage system, simulates whether or not implementation of the system requests is possible from the acquired functions and functions corresponding to the system requests occurring at the current storage system acquired using a third table for storing information for functions provided by the one or more storage devices, and notifies the one or more storage devices of instructions to set functions corresponding to the system requests to valid based on the simulation results of this simulation.
    Type: Application
    Filed: January 31, 2011
    Publication date: May 26, 2011
    Applicant: HITACHI, LTD.
    Inventors: Hiromichi Yamagiwa, Manabu Obana, Yukinori Sakashita
  • Patent number: 7945748
    Abstract: When migrating data stored in a storage region assigned to a volume to another storage region, the connection status of the host computer and volume is confirmed. When the host computer and volume are connected, the maximum capacity of the volume requested by the host computer is reserved so that it is exclusively secured in another storage region to which data is to be migrated, and when the host computer and volume are not connected, the current capacity of the volume is reserved so that it is exclusively secured in another storage region.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: May 17, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tsukasa Shibayama, Wataru Okada, Yukinori Sakashita, Yuri Hiraiwa, Masahide Sato
  • Publication number: 20110082988
    Abstract: In recent years reducing the operating cost of storage devices (hereafter, also referred to as storage sub-systems) has been an important task for the management of storage systems. As one method for solving this task, data life cycle management, in which data is relocated from, for example, a new storage sub-system to an older storage sub-system in accordance with how new the data is or the frequency of use of the data, has become important. One technology for achieving data life cycle management is technology for migrating the contents of a storage area (hereafter referred to as “volume”) of a storage sub-system to another volume without affecting the host computer that uses the volume. In the present invention, when an associated source volume (for example, the source volume in a copy pair association) of a pair of associated volumes (or groups) is migrated, migration of an associated destination volume (for example, the target volume in the copy pair association) is also controlled.
    Type: Application
    Filed: November 18, 2009
    Publication date: April 7, 2011
    Inventors: Yasutaka Kono, Yukinori Sakashita
  • Publication number: 20110060878
    Abstract: The management computer allocates a volume of an external storage device to a host so as to satisfy performance requirements specified from the host. The management computer selects a path that is formed including a first port of the storage device and a second port of the external storage device and that satisfies the performance requirements from the host, and then sets the priority. The management computer sets to the host the use authorization of a primary port and a secondary port that constitute a selected path and the use authorization of a second logical volume.
    Type: Application
    Filed: November 3, 2009
    Publication date: March 10, 2011
    Inventors: Satoshi KANEKO, Yukinori Sakashita, Daisuke Shinohara
  • Publication number: 20100332784
    Abstract: This storage system modifies the migration plan in accordance with the state of the migration destination when a plurality of volumes are migrated all at once. Migration-source volumes are migrated collectively to volumes inside the migration-destination storage apparatus. The user can make settings related to migration-source volumes and migration-destination volumes in a migration plan, and can establish a mid-process control plan for modifying the migration plan in the middle of processing. If a failure occurs in the migration-destination storage apparatus subsequent to the commencement of data migration processing, a processing method controller either cancels or temporarily halts the data migration processing, or changes the migration destination, on the basis of the mid-process control plan. When changing the migration destination, a previously selected alternate storage apparatus is selected as the new migration-destination storage apparatus.
    Type: Application
    Filed: September 1, 2010
    Publication date: December 30, 2010
    Inventors: Tsukasa SHIBAYAMA, Wataru Okada, Yukinori Sakashita, Yuri Hiraiwa, Masahide Sato