Patents by Inventor Dai Taninaka
Dai Taninaka 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: 8296468Abstract: A storage controller that performs user-friendly information display, simplifies updating of support information, has external storage controllers to provide sufficient input/output performance, and expands the range of external storage controllers to be supported; and a controlling method for that storage controller. The storage controller includes a code extract/convert unit for converting a first code indicating a vendor name and/or device name of an external storage controller, obtained based on inquiry data transmitted from the external storage controller, into a second code indicating a real vendor name and/or real device name of the external storage controller. The storage controller creates support information that compiles information of each model regarding whether or not it can be connected to the respective external storage controllers. Furthermore, a path control system and a timeout time can be set for the respective external storage controllers.Type: GrantFiled: September 29, 2011Date of Patent: October 23, 2012Assignee: Hitachi, Ltd.Inventors: Kosaku Kambayashi, Dai Taninaka
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Publication number: 20120265955Abstract: A storage control apparatus comprises a virtualization control part in addition to a copy control part determining whether or not a PVOL (a copy-source VOL) attribute set and a SVOL (a copy-destination VOL) attribute set are the same and carrying out a data copy between VOLs in a case where the result of this determination is affirmative. The virtualization control part creates either a virtual PVOL which is a VOL obtained by virtualizing the PVOL and which comprises the SVOL attribute set, or a virtual SVOL which is a VOL obtained by virtualizing the SVOL and which comprises the PVOL attribute set. As a result, either the VOL attribute set of the virtual PVOL and the SVOL attribute set become the same, or the PVOL attribute set and the VOL attribute set of the virtual SVOL become the same, and the copy control part can thereby carry out a copy between VOLs.Type: ApplicationFiled: April 12, 2011Publication date: October 18, 2012Applicant: HITACHI, LTD.Inventors: Sou Kawabe, Dai Taninaka
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Patent number: 8223652Abstract: Proposed are a storage system, a path management method and a path management device capable of ensuring the processing performance demanded by a user while seeking to improve the access performance from a host system to a storage apparatus. Path switching control for dynamically switching the path to be used by the host system according to the loaded condition of the respective paths between the host system and the storage apparatus is executed; and a path is selected as needed according to a policy containing path switching rules created by a user, and path switching control for excluding the selected path from the target and dynamically switching the path to be used by the host system is executed.Type: GrantFiled: January 29, 2010Date of Patent: July 17, 2012Assignee: Hitachi, Ltd.Inventors: Sachiko Hinata, Dai Taninaka, Misako Tamura
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Publication number: 20120023266Abstract: A storage controller that performs user-friendly information display, simplifies updating of support information, has external storage controllers to provide sufficient input/output performance, and expands the range of external storage controllers to be supported; and a controlling method for that storage controller. The storage controller includes a code extract/convert unit for converting a first code indicating a vendor name and/or device name of an external storage controller, obtained based on inquiry data transmitted from the external storage controller, into a second code indicating a real vendor name and/or real device name of the external storage controller. The storage controller creates support information that compiles information of each model regarding whether or not it can be connected to the respective external storage controllers. Furthermore, a path control system and a timeout time can be set for the respective external storage controllers.Type: ApplicationFiled: September 29, 2011Publication date: January 26, 2012Inventors: Kosaku KAMBAYASHI, Dai Taninaka
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Patent number: 8051225Abstract: A storage controller that performs user-friendly information display, simplifies updating of support information, has external storage controllers to provide sufficient input/output performance, and expands the range of external storage controllers to be supported; and a controlling method for that storage controller. The storage controller includes a code extract/convert unit for converting a first code indicating a vendor name and/or device name of an external storage controller, obtained based on inquiry data transmitted from the external storage controller, into a second code indicating a real vendor name and/or real device name of the external storage controller. The storage controller creates support information that compiles information of each model regarding whether or not it can be connected to the respective external storage controllers. Furthermore, a path control system and a timeout time can be set for the respective external storage controllers.Type: GrantFiled: June 30, 2008Date of Patent: November 1, 2011Assignee: Hitachi, Ltd.Inventors: Kosaku Kambayashi, Dai Taninaka
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Patent number: 7966448Abstract: A storage apparatus includes: a management unit for managing mapping, to a logical volume, of a second dynamically allocated storage area volume in an external storage apparatus, and also managing a management unit for a storage area in the second dynamically allocated storage area volume for storing data sent from the host computer; a volume creation unit for creating, when creating the first dynamically allocated storage area volume in accordance with an externally given command, the first dynamically allocated storage area volume by setting the management unit for the first dynamically allocated storage area volume based on a management unit for a storage area in the second dynamically allocated storage area volume; and a write data writing unit for writing, in accordance with a command from the host computer, the write data sent from the host computer to a storage area in a relevant second dynamically allocated storage area volume.Type: GrantFiled: March 7, 2008Date of Patent: June 21, 2011Assignee: Hitachi, Ltd.Inventors: Keishi Tamura, Dai Taninaka
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Publication number: 20100198987Abstract: Proposed are a storage system, a path management method and a path management device capable of ensuring the processing performance demanded by a user while seeking to improve the access performance from a host system to a storage apparatus. Path switching control for dynamically switching the path to be used by the host system according to the loaded condition of the respective paths between the host system and the storage apparatus is executed; and a path is selected as needed according to a policy containing path switching rules created by a user, and path switching control for excluding the selected path from the target and dynamically switching the path to be used by the host system is executed.Type: ApplicationFiled: January 29, 2010Publication date: August 5, 2010Inventors: Sachiko HINATA, Dai TANINAKA, Misako TAMURA
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Patent number: 7716440Abstract: This storage system has a first disk array device for providing a first volume that stores data transmitted from a host system, a second disk array device for providing a second volume that is virtualized with the first disk array device, and a management terminal for managing the first disk array device; wherein the first disk array device includes a first management unit for managing volume information of the virtualized volume that was virtualized in the first disk array device by being mapped with the second volume; and a first transmission unit for transmitting, based on an external operation, the volume information of the virtualized volume managed with the first management unit to the management terminal; and wherein the management terminal includes a second management unit for managing the volume information of the virtualized volume transmitted from the first transmission unit.Type: GrantFiled: January 27, 2006Date of Patent: May 11, 2010Assignee: Hitachi, Ltd.Inventor: Dai Taninaka
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Patent number: 7656806Abstract: Proposed are a storage system, a path management method and a path management device capable of ensuring the processing performance demanded by a user while seeking to improve the access performance from a host system to a storage apparatus. Path switching control for dynamically switching the path to be used by the host system according to the loaded condition of the respective paths between the host system and the storage apparatus is executed; and a path is selected as needed according to a policy containing path switching rules created by a user, and path switching control for excluding the selected path from the target and dynamically switching the path to be used by the host system is executed.Type: GrantFiled: June 22, 2006Date of Patent: February 2, 2010Assignee: Hitachi, Ltd.Inventors: Sachiko Hinata, Dai Taninaka, Misako Tamura
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Patent number: 7603507Abstract: The present invention uses memory resources effectively and connects each storage device by a plurality of paths in a switchable manner, thus improving reliability and ease of use, by virtualizing external memory resources as internal memory resources. External storage 2 is connected to the main storage 1, and the actual volume 2A is mapped onto the virtual volume 1A. A plurality of paths is connected between the storage 1 and 2. When a failure occurs in a path in use (S3), the path having the next highest priority is selected (S4), and processing is continued using this path (S5).Type: GrantFiled: May 16, 2008Date of Patent: October 13, 2009Assignee: Hitachi, Ltd.Inventors: Shuichi Yagi, Dai Taninaka, Takao Mashima
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Publication number: 20090193218Abstract: A storage apparatus includes: a management unit for managing mapping, to a logical volume, of a second dynamically allocated storage area volume in an external storage apparatus, and also managing a management unit for a storage area in the second dynamically allocated storage area volume for storing data sent from the host computer; a volume creation unit for creating, when creating the first dynamically allocated storage area volume in accordance with an externally given command the first dynamically allocated storage area volume by setting the management unit for the first dynamically allocated storage area volume based on a management unit for a storage area in the second dynamically allocated storage area volume; and a write data writing unit for writing, in accordance with a command from the host computer, the write data sent from the host computer to a storage area in a relevant second dynamically allocated storage area volume.Type: ApplicationFiled: March 7, 2008Publication date: July 30, 2009Inventors: Keishi Tamura, Dai Taninaka
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Patent number: 7519786Abstract: Provided is a storage system having one or more logical devices mapped to a virtual device provided in a mapping destination storage system, and a storage controller for controlling the reading and writing of data from and to the logical devices. Upon receiving a reserve command from the mapping destination storage system, the storage controller restricts the access from an initiator other than the mapping destination storage system to a logical device to which access restriction is designated with the reserve command.Type: GrantFiled: September 29, 2005Date of Patent: April 14, 2009Assignee: Hitachi, Ltd.Inventors: Kenji Sekine, Dai Taninaka, Keishi Tamura
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Patent number: 7512888Abstract: A method for performing a system reconfiguration of a storage system includes displaying a configuration window visually showing a configuration of a plurality of components in the storage system within an operation screen. An input area is displayed within the operation screen, the input area being provided for entering one or more components to be reconfigured. A performance window is displayed within the operation screen, the preference window providing bandwidth utilization information of one or more of the components in the storage system. The configuration window, performance window, and the input area are all viewable at the same time without activating another operation screen.Type: GrantFiled: November 13, 2002Date of Patent: March 31, 2009Assignee: Hitachi, Ltd.Inventors: Shoji Sugino, Kozue Fujii, Toshimichi Kishimoto, Dai Taninaka
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Publication number: 20090013112Abstract: A storage controller that performs user-friendly information display, simplifies updating of support information, has external storage controllers to provide sufficient input/output performance, and expands the range of external storage controllers to be supported; and a controlling method for that storage controller. The storage controller includes a code extract/convert unit for converting a first code indicating a vendor name and/or device name of an external storage controller, obtained based on inquiry data transmitted from the external storage controller, into a second code indicating a real vendor name and/or real device name of the external storage controller. The storage controller creates support information that compiles information of each model regarding whether or not it can be connected to the respective external storage controllers. Furthermore, a path control system and a timeout time can be set for the respective external storage controllers.Type: ApplicationFiled: June 30, 2008Publication date: January 8, 2009Inventors: Kosaku Kambayashi, Dai Taninaka
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Publication number: 20080228987Abstract: The present invention uses memory resources effectively and connects each storage device by a plurality of paths in a switchable manner, thus improving reliability and ease of use, by virtualizing external memory resources as internal memory resources. External storage 2 is connected to the main storage 1, and the actual volume 2A is mapped onto the virtual volume 1A. A plurality of paths is connected between the storage 1 and 2. When a failure occurs in a path in use (S3), the path having the next highest priority is selected (S4), and processing is continued using this path (S5).Type: ApplicationFiled: May 16, 2008Publication date: September 18, 2008Inventors: Shuichi Yagi, Dai Taninaka, Takao Mashima
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Patent number: 7424582Abstract: Provided is a storage system having a first storage controller and a second storage controller. An actual device of the second storage controller is mapped to a virtual device of the first storage controller. The first storage controller has a port for transmitting control cylinder information to be written in a control information area of the actual device. As the format data to be transmitted from the first storage controller to the second storage controller, it will suffice so as long as control cylinder information is transmitted, and high speed formatting can be performed since it is not necessary to transmit 0 data.Type: GrantFiled: September 29, 2005Date of Patent: September 9, 2008Assignee: Hitachi, Ltd.Inventors: Satoru Takayama, Dai Taninaka, Keishi Tamura
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Patent number: 7415593Abstract: A storage control system having no risk of changing the storage content of a logical volume by a data update to a virtual logical volume. A logical volume, which is not correspondent to a virtual logical volume, can be specified when defining a virtual logical volume correspondent to a logical volume. A first storage controller comprises a port capable of connecting to both a logical volume of the first storage controller, and a logical volume of a second storage controller; a virtual logical volume, which is set in association with a logical volume connected to this port; and a virtual logical volume-setting controller for controlling the setting of a virtual logical volume. The virtual logical volume-setting controller is constituted such that the virtual logical volume cannot be set in a logical volume of the first storage controller.Type: GrantFiled: March 3, 2005Date of Patent: August 19, 2008Assignee: Hitachi, Ltd.Inventors: Takao Mashima, Dai Taninaka
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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: 7366838Abstract: In an exclusive lock management in common to both the In-Band and the Out-of-band, a lock control technique of a storage system capable of removing the factor that may cause the discrepancy in the configuration information in a disk array system is disclosed. In the storage system, a shared memory in a DKC of a storage subsystem has lock management information for uniformly managing the operation authority for the configuration information in the shared memory that is used in common by both the channels of the host terminals and the management client terminals, and a CPU in the DKC gives the operation authority for changing the configuration information to either the host machine or the management client based on the lock management information in the shared memory in response to an access request from the host terminals or the management client terminals.Type: GrantFiled: November 17, 2006Date of Patent: April 29, 2008Assignee: Hitachi, Ltd.Inventors: Dai Taninaka, Toshimichi Kishimoto
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Patent number: 7363439Abstract: The control device is a device which can be connected to an external device that transmits data, comprising a computer program which analyzes data received from the abovementioned external device using data format information related to the format of the data, wherein the abovementioned data format information is stored in a separate location from said computer program.Type: GrantFiled: December 7, 2004Date of Patent: April 22, 2008Assignee: Hitachi, Ltd.Inventors: Atsushi Miyagaki, Dai Taninaka