Patents by Inventor Kazuhiro Usami
Kazuhiro Usami 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: 8812800Abstract: The performance to transfer data to external storage media in thin provisioning is enhanced. A storage apparatus is connected via a network to a host system writing of data and to a tape management apparatus for managing tape storage media for storing the data.Type: GrantFiled: June 24, 2010Date of Patent: August 19, 2014Assignee: Hitachi Ltd.Inventor: Kazuhiro Usami
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Publication number: 20120233437Abstract: Pools of a plurality of types of storage devices are configured and are included in different layers. Based on at least one storage device of the same type, the pools of types corresponding to the type are configured. The controller in the storage system carries out storage location change processing in which the storage location of targeted data that has been stored into the targeted first real page allocated to a virtual page in a virtual volume is changed to the second real page that has not been allocated in a pool of the second type different from a pool of the first type including the targeted first real page in the case in which the controller conforms to the prescribed storage location change conditions. A size of a real page is different depending on a type of a pool.Type: ApplicationFiled: May 17, 2012Publication date: September 13, 2012Inventor: Kazuhiro USAMI
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Patent number: 8219770Abstract: A storage system including: a virtualization apparatus having a control unit, said control unit setting an actual volume for storing data sent from a host apparatus, formed in a storage area provided by a physical disk; and a virtual volume paired with the actual volume, for storing replicated data for the data; and an external storage apparatus having a logical volume that functions as an actual storage area for the virtual volume; and a tape associated with the logical volume, for storing the replicated data; wherein the external storage apparatus has a copy unit for copying the replicated data stored in the logical volume to the tape.Type: GrantFiled: September 1, 2011Date of Patent: July 10, 2012Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.Inventor: Kazuhiro Usami
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Patent number: 8205054Abstract: Pools of a plurality of types of storage devices are configured and are included in different layers. Based on at least one storage device of the same type, the pools of types corresponding to the type are configured. The controller in the storage system carries out storage location change processing in which the storage location of targeted data that has been stored into the targeted first real page allocated to a virtual page in a virtual volume is changed to the second real page that has not been allocated in a pool of the second type different from a pool of the first type including the targeted first real page in the case in which the controller conforms to the prescribed storage location change conditions. A size of a real page is different depending on a type of a pool.Type: GrantFiled: January 9, 2009Date of Patent: June 19, 2012Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.Inventor: Kazuhiro Usami
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Patent number: 8145602Abstract: An LU management table 61 that associates and stores the LU# of the P-Vol 10p and the LU# of the S-Vol 10s is provided. The CPU 53 specifies the LU# of the S-Vol 10s constituting the save source of the data with respect to the magnetic tape cartridge 74, acquires the LU# of the P-Vol 10p associated with the specified LU# from the LU management table 61, reads the saved data from the magnetic tape cartridge 74 storing the data by means of the magnetic tape drive 71, and stores the data read from the magnetic tape cartridge 74 to the P-Vol 10p with the acquired LU#. As a result, the data can be restored easily and properly to the P-Vol 10p.Type: GrantFiled: July 27, 2010Date of Patent: March 27, 2012Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.Inventor: Kazuhiro Usami
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Publication number: 20110320707Abstract: The performance to transfer data to external storage media in thin provisioning is enhanced. A storage apparatus is connected via a network to a host system writing of data and to a tape management apparatus for managing tape storage media for storing the data.Type: ApplicationFiled: June 24, 2010Publication date: December 29, 2011Applicants: HITACHI COMPUTER PERIPHERALS CO., LTD., HITACHI, LTD.Inventor: Kazuhiro Usami
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Publication number: 20110320710Abstract: A storage system including: a virtualization apparatus having a control unit, said control unit setting an actual volume for storing data sent from a host apparatus, formed in a storage area provided by a physical disk; and a virtual volume paired with the actual volume, for storing replicated data for the data; and an external storage apparatus having a logical volume that functions as an actual storage area for the virtual volume; and a tape associated with the logical volume, for storing the replicated data; wherein the external storage apparatus has a copy unit for copying the replicated data stored in the logical volume to the tape.Type: ApplicationFiled: September 1, 2011Publication date: December 29, 2011Inventor: Kazuhiro Usami
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Patent number: 8037265Abstract: Storage system and data management method to reduce the load on a virtualization apparatus by executing backup processing or restoration processing within one apparatus in which an externally connected storage apparatus and a tape library apparatus are installed. The storage system includes a virtualization apparatus and an external storage apparatus; the virtualization apparatus having: an actual volume for storing data sent from a host apparatus, formed in a storage area provided by a physical disk; and a virtual volume paired with the actual volume, for storing replicated data for the data, and the external storage apparatus having: a logical volume that functions as an actual storage area for the virtual volume; and a tape associated with the logical volume, for storing the replicated data, wherein the external storage apparatus has a copy unit for copying the replicated data stored in the logical volume to the tape.Type: GrantFiled: February 7, 2007Date of Patent: October 11, 2011Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.Inventor: Kazuhiro Usami
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Patent number: 8037268Abstract: Aiming to suitably balance, when backing up data to a magnetic tape, search time and writing/reading performance depending on the purpose of the backup, provided is a disk array apparatus including a disk device having hard disks, a magnetic tape device including a magnetic tape to which data to be backed up is written, and a control unit performing writing and reading processings of data between the disk device and the magnetic tape device. The control unit includes an FM (file mark) interval managing unit which receives a purpose of use when backing up the data on the magnetic tape, and from FM intervals which is held in association with the purpose of use thus received and which indicates an interval of recording FMs on the magnetic tape, acquires an FM interval corresponding to the purpose of use thus received, and transmits the acquired FM interval to the control unit.Type: GrantFiled: January 14, 2009Date of Patent: October 11, 2011Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.Inventors: Hirokazu Aikawa, Kazuhiro Usami, Hirokazu Ishii
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Publication number: 20100293150Abstract: An LU management table 61 that associates and stores the LU# of the P-Vol 10p and the LU# of the S-Vol 10s is provided. The CPU 53 specifies the LU# of the S-Vol 10s constituting the save source of the data with respect to the magnetic tape cartridge 74, acquires the LU# of the P-Vol 10p associated with the specified LU# from the LU management table 61, reads the saved data from the magnetic tape cartridge 74 storing the data by means of the magnetic tape drive 71, and stores the data read from the magnetic tape cartridge 74 to the P-Vol 10p with the acquired LU#. As a result, the data can be restored easily and properly to the P-Vol 10p.Type: ApplicationFiled: July 27, 2010Publication date: November 18, 2010Inventor: Kazuhiro Usami
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Patent number: 7831781Abstract: A storage system is characterized by including: a host apparatus for sending various requests and backup-target data; a virtualization apparatus including a volume that stores the data sent from the host apparatus and a virtual volume that stores replicated data for the data; and a virtual disk library apparatus having a controller apparatus that includes an actual volume for the virtual volume and a tape library apparatus having a tape that stores the replicated data stored in the actual volume, and is characterized in that the controller apparatus has a path switching unit for conducting switching, for a plurality of paths for transferring the data, between a path that connects the controller apparatus to the tape library apparatus and a path that connects the controller apparatus to the virtualization apparatus according to a request from the host apparatus.Type: GrantFiled: January 9, 2008Date of Patent: November 9, 2010Assignee: Hitachi, Ltd.Inventor: Kazuhiro Usami
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Patent number: 7788229Abstract: An LU management table 61 that associates and stores the LU# of the P-Vol 10p and the LU# of the S-Vol 10s is provided. The CPU 53 specifies the LU# of the S-Vol 10s constituting the save source of the data with respect to the magnetic tape cartridge 74, acquires the LU# of the P-Vol 10p associated with the specified LU# from the LU management table 61, reads the saved data from the magnetic tape cartridge 74 storing the data by means of the magnetic tape drive 71, and stores the data read from the magnetic tape cartridge 74 to the P-Vol 10p with the acquired LU#. As a result, the data can be restored easily and properly to the P-Vol 10p.Type: GrantFiled: February 5, 2008Date of Patent: August 31, 2010Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., LtdInventor: Kazuhiro Usami
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Publication number: 20100142070Abstract: Aiming to suitably balance, when backing up data to a magnetic tape, search time and writing/reading performance depending on the purpose of the backup, provided is a disk array apparatus including a disk device having hard disks, a magnetic tape device including a magnetic tape to which data to be backed up is written, and a control unit performing writing and reading processings of data between the disk device and the magnetic tape device. The control unit includes an FM (file mark) interval managing unit which receives a purpose of use when backing up the data on the magnetic tape, and from FM intervals which is held in association with the purpose of use thus received and which indicates an interval of recording FMs on the magnetic tape, acquires an FM interval corresponding to the purpose of use thus received, and transmits the acquired FM interval to the control unit.Type: ApplicationFiled: January 14, 2009Publication date: June 10, 2010Inventors: Hirokazu Aikawa, Kazuhiro Usami, Hirokazu Ishii
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Publication number: 20100115222Abstract: Pools of a plurality of types of storage devices are configured and are included in different layers. Based on at least one storage device of the same type, the pools of types corresponding to the type are configured. The controller in the storage system carries out storage location change processing in which the storage location of targeted data that has been stored into the targeted first real page allocated to a virtual page in a virtual volume is changed to the second real page that has not been allocated in a pool of the second type different from a pool of the first type including the targeted first real page in the case in which the controller conforms to the prescribed storage location change conditions. A size of a real page is different depending on a type of a pool.Type: ApplicationFiled: January 9, 2009Publication date: May 6, 2010Inventor: Kazuhiro USAMI
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Publication number: 20090070385Abstract: An LU management table 61 that associates and stores the LU# of the P-Vol 10p and the LU# of the S-Vol 10s is provided. The CPU 53 specifies the LU# of the S-Vol 10s constituting the save source of the data with respect to the magnetic tape cartridge 74, acquires the LU# of the P-Vol 10p associated with the specified LU# from the LU management table 61, reads the saved data from the magnetic tape cartridge 74 storing the data by means of the magnetic tape drive 71, and stores the data read from the magnetic tape cartridge 74 to the P-Vol 10p with the acquired LU#. As a result, the data can be restored easily and properly to the P-Vol 10p.Type: ApplicationFiled: February 5, 2008Publication date: March 12, 2009Inventor: Kazuhiro Usami
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Publication number: 20080270670Abstract: A storage system is characterized by including: a host apparatus for sending various requests and backup-target data; a virtualization apparatus including a volume that stores the data sent from the host apparatus and a virtual volume that stores replicated data for the data; and a virtual disk library apparatus having a controller apparatus that includes an actual volume for the virtual volume and a tape library apparatus having a tape that stores the replicated data stored in the actual volume, and is characterized in that the controller apparatus has a path switching unit for conducting switching, for a plurality of paths for transferring the data, between a path that connects the controller apparatus to the tape library apparatus and a path that connects the controller apparatus to the virtualization apparatus according to a request from the host apparatus.Type: ApplicationFiled: January 9, 2008Publication date: October 30, 2008Inventor: Kazuhiro Usami
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Publication number: 20080091896Abstract: A storage system and a data management method are provided that can reduce the load on a virtualization apparatus by executing backup processing or restoration processing within one apparatus—an external storage apparatus—in which an externally connected storage apparatus and a tape library apparatus are installed. The storage system includes a virtualization apparatus and an external storage apparatus; the virtualization apparatus having: an actual volume for storing data sent from a host apparatus, formed in a storage area provided by a physical disk; and a virtual volume paired with the actual volume, for storing replicated data for the data, and the external storage apparatus having: a logical volume that functions as an actual storage area for the virtual volume; and a tape associated with the logical volume, for storing the replicated data, wherein the external storage apparatus has a copy unit for copying the replicated data stored in the logical volume to the tape.Type: ApplicationFiled: February 7, 2007Publication date: April 17, 2008Inventor: Kazuhiro Usami
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Patent number: 5894469Abstract: A disk file apparatus having a storage device (4) for multistageously storing disk cartridges (3) each containing a disk therein while keeping each of said disk cartridges horizontal, a drive device (5), and an automatic disk exchanging device (7) including a carrier device (6) for taking out a disk cartridge in between said storage device and said drive device, carrying the disk cartridge vertically and supplying the disk cartridge, wherein: slide mechanisms (60) are provided on a carrier frame (17) so that the opening/closing of claw arms (24) of a holder (21) provided in the carrier device is interlocked with the going-in-and-out operation of the holder mechanically; the carrier frame is supported so as to be rotatable in the form of a cantilever on the horizontal center of a cartridge storage portion inside thereof; and an inverting device (33) having a solenoid (50) and clutch gears (46, 47) is provided in a holder carrying device (32).Type: GrantFiled: May 26, 1995Date of Patent: April 13, 1999Assignee: NKK CorporationInventors: Kazuhiro Usami, Shigeo Kawamura