Patents by Inventor Kiichiro Urabe
Kiichiro Urabe 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: 8566551Abstract: An object is to efficiently set configurations of a storage apparatus. Provided is an information apparatus communicably coupled to a storage apparatus 10, which validates a script executed by the storage apparatus 10 for setting a configuration of the storage apparatus 10, the information apparatus generating configurations of the storage apparatus 10 when after each command described in a script is executed sequentially; and performing consistency validation on the script by determining whether or not the command described in the script is normally executable in a case the command is executed on an assumption that the storage apparatus 10 has the configuration immediately before the execution.Type: GrantFiled: May 28, 2010Date of Patent: October 22, 2013Assignee: Hitachi, Ltd.Inventors: Ikuo Uratani, Kiichiro Urabe, Hiroshi Taninaka, Shoji Sugino
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Publication number: 20120131276Abstract: An object is to efficiently set configurations of a storage apparatus. Provided is an information apparatus communicably coupled to a storage apparatus 10, which validates a script executed by the storage apparatus 10 for setting a configuration of the storage apparatus 10, the information apparatus generating configurations of the storage apparatus 10 when after each command described in a script is executed sequentially; and performing consistency validation on the script by determining whether or not the command described in the script is normally executable in a case the command is executed on an assumption that the storage apparatus 10 has the configuration immediately before the execution.Type: ApplicationFiled: May 28, 2010Publication date: May 24, 2012Applicant: HITACHI, LTD.Inventors: Ikuo Uratani, Kiichiro Urabe, Hiroshi Taninaka, Shoji Sugino
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Patent number: 8151070Abstract: When detecting the completion of remote copying of a primary volume to a secondary volume, a host compute splits a copy pair into the primary volume and the secondary volume and has the secondary volume store a snapshot of the primary volume. A backup server recognizes the secondary volume.Type: GrantFiled: September 1, 2010Date of Patent: April 3, 2012Assignee: Hitachi, Ltd.Inventors: Ikuo Uratani, Kiichiro Urabe
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Publication number: 20110283072Abstract: When detecting the completion of remote copying of a primary volume to a secondary volume, a host compute splits a copy pair into the primary volume and the secondary volume and has the secondary volume store a snapshot of the primary volume. A backup server recognizes the secondary volume.Type: ApplicationFiled: September 1, 2010Publication date: November 17, 2011Applicant: HITACHI, LTD.Inventors: Ikuo Uratani, Kiichiro Urabe
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Publication number: 20110258377Abstract: Commands can be issued by being flexibly adjusted to each of an in-band method and an out-of-band method. A disk controller includes: a pseudo-logical volume provided independently from a substantial logical volume; a command analyzer for analyzing a command received by means of communication on the in-band method or the out-of-band method; and a special command processing unit for executing operation over the substantial logical volume which corresponds to the pseudo-logical volume, instead of executing operation over the pseudo-logical volume, if the command means an instruction to operate the pseudo-logical volume.Type: ApplicationFiled: December 7, 2009Publication date: October 20, 2011Applicant: HITACHI, LTD.Inventors: Shoji Sugino, Kiichiro Urabe, Hiroshi Taninaka, Ikuo Uratani
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Patent number: 7809907Abstract: When detecting the completion of remote copying of a primary volume to a secondary volume, a host computer splits a copy pair into the primary volume and the secondary volume and has the secondary volume store a snapshot of the primary volume. A backup server recognizes the secondary volume.Type: GrantFiled: September 21, 2006Date of Patent: October 5, 2010Assignee: Hitachi, Ltd.Inventors: Ikuo Uratani, Kiichiro Urabe
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Patent number: 7769968Abstract: A storage control system is provided where a first host system connected to a first storage controller can issue a control command to a second storage controller connected another host system. The first storage controller is connected to the second storage controller and the command is issued without providing the command to the other host system. The first storage controller has a virtual volume, a memory unit for storing information necessary for mapping the virtual volume to a logical device in the second storage controller, and attribute information for the logical device. The host system identifies the virtual volume as the logical device in the second storage controller and issues a control command to this logical device via the virtual volume.Type: GrantFiled: April 9, 2009Date of Patent: August 3, 2010Assignee: Hitachi, Ltd.Inventors: Satoru Ozaki, Hisao Homma, Kiichiro Urabe, Yoshihito Nakagawa, Keishi Tamura
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Patent number: 7725611Abstract: A method for verifying data in a storage system is disclosed. A host computer transmits area management data to a storage controller. The area management data specifies a range of a storage area in a storage device to be used by an application program having a mechanism for verifying data suitability. Upon receipt of an input/output request transmitted from the host computer, the storage controller performs verification, which is usually performed by the application program, of the data that is to be processed according to the data input/output request and to be input/output to/from the storage area, which is specified in accordance with the received area management data.Type: GrantFiled: July 15, 2008Date of Patent: May 25, 2010Assignee: Hitachi, Ltd.Inventors: Kazunobu Ohashi, Takao Satoh, Kiichiro Urabe, Toshio Nakano, Shizuo Yokohata
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Patent number: 7617227Abstract: A storage control device provided in a storage control system reports a virtual storage capacity value stored in a shared memory, to a host terminal, and ensures that, after the virtual storage capacity value has been stored in the host terminal, the virtual storage capacity value thus reported cannot be changed while the virtual storage unit having the virtual storage capacity value is connected to the host terminal.Type: GrantFiled: January 18, 2007Date of Patent: November 10, 2009Assignee: Hitachi, Ltd.Inventors: Haruaki Watanabe, Kiichiro Urabe, Kenji Yamagami
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Publication number: 20090228672Abstract: A first and a second storage apparatuses each include: a logical device in which a control command from a host system is written; one or more logical volumes provided by storage areas in plural hard disks for storing data; pair information regarding pairs formed from plural logical volumes, and the remote copy system includes a check unit that checks, based on the pair information, when the control command from the host computer is written in each logical device, a copy path from a logical volume designated as a start point by the host system to a final logical volume in which data same as that in the start logical volume is stored.Type: ApplicationFiled: May 23, 2008Publication date: September 10, 2009Inventors: Ikuo Uratani, Kiichiro Urabe
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Publication number: 20090193208Abstract: A storage control system is provided where a first host system connected to a first storage controller can issue a control command to a second storage controller connected another host system. The first storage controller is connected to the second storage controller and the command is issued without providing the command to the other host system. The first storage controller has a virtual volume, a memory unit for storing information necessary for mapping the virtual volume to a logical device in the second storage controller, and attribute information for the logical device. The host system identifies the virtual volume as the logical device in the second storage controller and issues a control command to this logical device via the virtual volume.Type: ApplicationFiled: April 9, 2009Publication date: July 30, 2009Inventors: Satoru Ozaki, Hisao Homma, Kiichiro Urabe, Yoshihito Nakagawa, Keishi Tamura
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Patent number: 7526618Abstract: A storage control system is provided where a first host system connected to a first storage controller can issue a control command to a second storage controller connected another host system. The first storage controller is connected to the second storage controller and the command is issued without providing the command to the other host system. The first storage controller has a virtual volume, a memory unit for storing information necessary for mapping the virtual volume to a logical device in the second storage controller, and attribute information for the logical device. The host system identifies the virtual volume as the logical device in the second storage controller and issues a control command to this logical device via the virtual volume.Type: GrantFiled: January 23, 2006Date of Patent: April 28, 2009Assignee: Hitachi, Ltd.Inventors: Satoru Ozaki, Hisao Homma, Kiichiro Urabe, Yoshihito Nakagawa, Keishi Tamura
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Patent number: 7496718Abstract: A method for copying information from a first storage subsystem to a second storage subsystem is disclosed. The first and second storage subsystems are provided in a data storage system. The method comprises transmitting first data block from the first storage subsystem to the second storage subsystem, the first storage subsystem being associated with a first host computer and the second storage subsystem being associated with a second host computer; and transmitting first attribute information from the first storage subsystem to the second storage subsystem without intervention from the first host computer.Type: GrantFiled: November 17, 2004Date of Patent: February 24, 2009Assignee: Hitachi, Ltd.Inventors: Hiroshi Ohno, Kiichiro Urabe, Toshio Nakano, Hideo Tabuchi
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Patent number: 7464235Abstract: Provided is a storage system having a host system, a first storage controller and a second storage controller. The first storage controller has a primary logical volume formed from an actual volume, and a secondary logical volume formed from a virtual volume capable of forming a copy pair with the primary logical volume. The second storage controller has an external volume formed from an actual volume to be mapped to the secondary logical volume. The host system has device data showing the mapping relationship between the external volume and the secondary logical volume.Type: GrantFiled: October 24, 2005Date of Patent: December 9, 2008Assignee: Hitachi, Ltd.Inventors: Ikuo Uratani, Kiichiro Urabe
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Publication number: 20080288829Abstract: A method for verifying data in a storage system is disclosed. A host computer transmits area management data to a storage controller. The area management data specifies a range of a storage area in a storage device to be used by an application program having a mechanism for verifying data suitability. Upon receipt of an input/output request transmitted from the host computer, the storage controller performs verification, which is usually performed by the application program, of the data that is to be processed according to the data input/output request and to be input/output to/from the storage area, which is specified in accordance with the received area management data.Type: ApplicationFiled: July 15, 2008Publication date: November 20, 2008Inventors: Kazunobu OHASHI, Takao Satoh, Kiichiro Urabe, Toshio Nakano, Shizuo Yokohata
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Patent number: 7437424Abstract: In order to allow a host computer to specify an operable logical unit (LU), a storage system responds with extended LU information, including at least connection portion numbers, target IDs and logical unit numbers according to an inquiry made from the host computer. An external storage system adds extended LU numbers used in coupling as responses to inquiry commands to specified logical units. Owing to such addition, the host computer is capable of collecting responses of inquiry commands to special device files of all storage systems recognized by the host computer. It is thus possible to obtain a list of extended LU numbers corresponding to all logical units recognized by the host computer. Since such an external storage system using LUN security is capable of effecting coupling operations only on logical units recognized by the host computer, security is enhanced.Type: GrantFiled: February 26, 2002Date of Patent: October 14, 2008Assignee: Hitachi, Ltd.Inventors: Ikuo Uratani, Kiichiro Urabe
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Patent number: 7412573Abstract: The present invention makes it possible to change over a volume transparently with respect to a host. A first storage device 2A and a second storage device 2B are connected through a communication network 3B; a volume 8 provided by the second storage device 2B is mapped as a volume of the first storage device 2A. A host 1 is capable of accessing either of the volume 6 or volume 8 via a virtual LU 4. A connection control unit 5, which may be constructed of tables or the like, connects the virtual LU 4 to either one of volume 6 and volume 8. Changeover of the connection target is performed transparently with respect to the host 1 and so is not recognized by the host 1. Consequently, the actual data storage target volume can be changed over while the host 1 always accesses the same virtual LU 4.Type: GrantFiled: November 9, 2004Date of Patent: August 12, 2008Assignee: Hitachi, Ltd.Inventors: Ikuo Uratani, Kiichiro Urabe, Dai Taninaka
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Patent number: 7376804Abstract: A storage controller can perform backup processing without proceeding via a server and without the need for the server to grasp the state of pair volumes. When an instruction for backup is given from the server while data is being copied from a source volume to a target volume, the storage controller transfers the data to a backup device using differential information between the pair volumes after waiting until data about a range to be backed up and instructed by the server is copied into the target volume.Type: GrantFiled: March 15, 2006Date of Patent: May 20, 2008Assignee: Hitachi, Ltd.Inventors: Takeshi Ido, Kiichiro Urabe
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Publication number: 20080028171Abstract: When detecting the completion of remote copying of a primary volume to a secondary volume, a host computer splits a copy pair into the primary volume and the secondary volume and has the secondary volume store a snapshot of the primary volume. A backup server recognizes the secondary volume.Type: ApplicationFiled: September 21, 2006Publication date: January 31, 2008Inventors: Ikuo Uratani, Kiichiro Urabe
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Patent number: 7243196Abstract: When copy instruction details are transferred to a first storage control unit from an application program, a channel processor captures the instruction details into local memory. Then, the instruction details are analyzed, and based on the analysis result, an open remote copy/MRCF instruction is output to an open remote copy/MRCF control section. If the instruction details have no problem, a response is made to a host unit that the writing response is normally made. To be ready for reading of inquiry information by the host unit, shared memory is searched for the inquiry information to create output data from the first storage control unit to the host unit. With such a structure, a storage device in a disk array apparatus external to another disk array apparatus can be used as resources of any device connectable to higher-level systems.Type: GrantFiled: February 3, 2004Date of Patent: July 10, 2007Assignee: Hitachi, Ltd.Inventors: Ikuo Uratani, Kiichiro Urabe