Patents by Inventor Naohisa Kasako
Naohisa Kasako 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: 8527723Abstract: A first controller defines an existing pair that represents a copy from a first existing area that is a storage area of a first logical volume before size expansion to a second existing area that is a storage area of a second logical volume before size expansion, maintains the existing pair in a synchronous state, which is a state where the second existing area is in synchronization with the first existing area, and expands the size of the first logical volume by adding a first expansion area using a first storage device to the first logical volume during the synchronous state, and the second controller adds a second expansion area using a second storage device to the second logical volume after the size of the first logical volume is expanded, and writes data written to the first expansion area to the second expansion area.Type: GrantFiled: May 10, 2012Date of Patent: September 3, 2013Assignee: Hitachi, Ltd.Inventor: Naohisa Kasako
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Patent number: 8521978Abstract: A storage apparatus 10 implements Thin Provisioning functions by allocating a storage area of a physical drive 171 to a logical page in units of a physical page, the physical drive 171 being managed as a storage pool 93, the logical page being a management unit of a storage area of a virtual volume 52; performs tier arrangement processing to replicate data stored in a migration source physical page to a migration destination physical page; and performs replacement processing for the physical drive 171 upon receipt of a request to replace the physical drive 171 in units of a physical device (PDEV). In performing the replacement processing for the physical drive 171, when a first processing mode is designated as tier arrangement processing mode, the storage apparatus 10 cancels start of the tier arrangement processing, and then starts the replacement processing.Type: GrantFiled: April 27, 2010Date of Patent: August 27, 2013Assignee: Hitachi, Ltd.Inventor: Naohisa Kasako
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Patent number: 8489835Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.Type: GrantFiled: March 24, 2011Date of Patent: July 16, 2013Assignee: Hitachi, Ltd.Inventor: Naohisa Kasako
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Patent number: 8438403Abstract: Provided is a storage apparatus capable of encrypting data without affecting the business performance. This storage apparatus includes a cache memory, a first controller for controlling the writing of data in the cache memory pursuant to the write command, a second controller for controlling the writing of the data written in the cache into the storage devices, and an encryption engine for encrypting data pursuant to the write command. When the second controller reads the data from the cache memory and writes the data in said storage devices, the encryption engine encrypts the data, and the second controller writes the encrypted data in said storage devices.Type: GrantFiled: January 24, 2008Date of Patent: May 7, 2013Assignee: Hitachi, Ltd.Inventors: Naohisa Kasako, Misako Tamura, Sachiko Hinata
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Patent number: 8255652Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device.Type: GrantFiled: May 17, 2011Date of Patent: August 28, 2012Assignee: Hitachi, Ltd.Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki
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Publication number: 20110264855Abstract: A storage apparatus 10 implements Thin Provisioning functions by allocating a storage area of a physical drive 171 to a logical page in units of a physical page, the physical drive 171 being managed as a storage pool 93, the logical page being a management unit of a storage area of a virtual volume 52; performs tier arrangement processing to replicate data stored in a migration source physical page to a migration destination physical page; and performs replacement processing for the physical drive 171 upon receipt of a request to replace the physical drive 171 in units of a physical device (PDEV). In performing the replacement processing for the physical drive 171, when a first processing mode is designated as tier arrangement processing mode, the storage apparatus 10 cancels start of the tier arrangement processing, and then starts the replacement processing.Type: ApplicationFiled: April 27, 2010Publication date: October 27, 2011Applicant: HITACHI, LTD.Inventor: Naohisa Kasako
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Publication number: 20110246737Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device.Type: ApplicationFiled: May 17, 2011Publication date: October 6, 2011Applicant: HITACHI, LTD.Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki
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Publication number: 20110173406Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.Type: ApplicationFiled: March 24, 2011Publication date: July 14, 2011Applicant: HITACHI, LTD.Inventor: Naohisa Kasako
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Patent number: 7975116Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device.Type: GrantFiled: March 10, 2010Date of Patent: July 5, 2011Assignee: Hitachi, Ltd.Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki
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Patent number: 7930500Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.Type: GrantFiled: October 12, 2010Date of Patent: April 19, 2011Assignee: Hitachi, Ltd.Inventor: Naohisa Kasako
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Publication number: 20110047331Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.Type: ApplicationFiled: October 12, 2010Publication date: February 24, 2011Applicant: HITACHI, LTD.Inventor: Naohisa Kasako
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Patent number: 7827369Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.Type: GrantFiled: October 22, 2008Date of Patent: November 2, 2010Assignee: Hitachi, Ltd.Inventor: Naohisa Kasako
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Publication number: 20100169598Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device.Type: ApplicationFiled: March 10, 2010Publication date: July 1, 2010Applicant: HITACHI, LTD.Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki
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Patent number: 7707377Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device.Type: GrantFiled: February 20, 2008Date of Patent: April 27, 2010Assignee: Hitachi, Ltd.Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki
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Publication number: 20090063798Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.Type: ApplicationFiled: October 22, 2008Publication date: March 5, 2009Inventor: Naohisa Kasako
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Patent number: 7457929Abstract: It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host device 180. The auxiliary storage systems 100B, 100C read journals of data update from the primary storage system 100A at respective independent timings, save the journals in prescribed logical volumes JNL 2, JNL 3, produce copying of the data present in the primary storage system 100A based on the journals present in the logical volumes JNL 2, JNL 3 at the independent timings, and save the copies in auxiliary logical volumes COPY 1, COPY 3. The primary storage system 100A holds the journals till both auxiliary storage systems 100B, 100C read the journals and restore. The timing of journal read can be controlled according to the journal quantity, processing load, and the like.Type: GrantFiled: December 15, 2005Date of Patent: November 25, 2008Assignee: Hitachi, Ltd.Inventor: Naohisa Kasako
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Patent number: 7430648Abstract: A storage device system includes an information processing device and at least first and second storage devices. The first and second storage devices are equipped with first and second storage volumes, respectively. The information processing device generates first data including a first instruction that is to be executed by the second storage device, and sends a write request to a first write request section to write the first data according to a first communications protocol in the first storage volume. When the first data written in the first storage volume is the command to be executed by the second storage device, the first storage device sends to a second write request section a write request to write the first data according to a second communications protocol in the second storage volume. The second storage device executes the first command set in the first data that is written in the second storage volume.Type: GrantFiled: February 16, 2007Date of Patent: September 30, 2008Assignee: Hitachi, Ltd.Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki, Takeshi Koide
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Publication number: 20080229118Abstract: Provided is a storage apparatus capable of encrypting data without affecting the business performance. This storage apparatus includes a cache memory, a first controller for controlling the writing of data in the cache memory pursuant to the write command, a second controller for controlling the writing of the data written in the cache into the storage devices, and an encryption engine for encrypting data pursuant to the write command. When the second controller reads the data from the cache memory and writes the data in said storage devices, the encryption engine encrypts the data, and the second controller writes the encrypted data in said storage devices.Type: ApplicationFiled: January 24, 2008Publication date: September 18, 2008Inventors: Naohisa Kasako, Misako Tamura, Sachiko Hinata
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Publication number: 20080172537Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device.Type: ApplicationFiled: February 20, 2008Publication date: July 17, 2008Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki
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Patent number: 7363461Abstract: A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be Executed in the second storage device.Type: GrantFiled: July 26, 2006Date of Patent: April 22, 2008Assignee: Hitachi, Ltd.Inventors: Naohisa Kasako, Shuji Kondo, Toru Suzuki