Patents by Inventor Fumi Miyazaki
Fumi Miyazaki 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).
-
Patent number: 8112596Abstract: A management apparatus, a management method, and a storage management system that more specifically manage power consumption, making it easy to analyze problems relating to power consumption or properly relocate data are provided. A power consumption for each of a plurality of memory apparatus groups each consisting of a plurality of memory apparatuses in a storage system is computed based on a performance for each of a plurality of logical storage extents defined in a plurality of storage extents provided by each of the memory apparatus groups, and a value of the power consumption for each of one or more of the memory apparatus groups obtained by the computation is output together with information on an access status of each of the corresponding logical storage extents.Type: GrantFiled: September 22, 2008Date of Patent: February 7, 2012Assignee: Hitachi, Ltd.Inventors: Yuichi Taguchi, Fumi Miyazaki, Masayuki Yamamoto, Yasunori Kaneda
-
Patent number: 7716496Abstract: When a computer system including a data storage apparatus having a data storage area storing encrypted data is modified to have plural encryption/decryption units, a computer cannot appropriately use the encrypted data storage area if a path including the encryption/decryption means is not adequately determined.Type: GrantFiled: November 16, 2004Date of Patent: May 11, 2010Assignee: Hitachi, Ltd.Inventors: Yasunori Kaneda, Yuichi Taguchi, Fumi Miyazaki
-
Patent number: 7689837Abstract: At the time of migrating encrypted data into another storage apparatus, decrypt this data after migration is simplified, and security against tapping, falsification and the like is maintained when a calculation method of encrypted data is re-written into another calculation method, and also access performance is improved. In a storage system 100 which is provided with a storage apparatus having a volume 120 and which is accessible from a host computer, it is made possible to execute the data migration when a storage apparatus provided with a mechanism capable of decrypting the encrypted data is chosen as a migration destination of this data, and also to keep holding surely the encrypted data by updating and saving again an encryption method applied to a encryption of the encrypted data into another method by internal processing of the apparatus even when the apparatus and the encryption method become obsolete.Type: GrantFiled: May 23, 2005Date of Patent: March 30, 2010Assignee: Hitachi, Ltd.Inventors: Yuichi Taguchi, Fumi Miyazaki, Masayuki Yamamoto
-
Patent number: 7640407Abstract: A first storage system includes a first storage area for storing data written by a computer. A second storage system includes a second storage area to which the data stored in the first storage area migrates. A third storage system includes a virtual storage area corresponding to the second storage area. An access request to the virtual storage area is converted into an access request to the second storage area to be issued. A management computer transmits, to the third storage system, an instruction to migrate the data of the second storage area to a third storage area of the third storage system based on a determination result between a value of the data migrated to the second storage area and a predetermined threshold value.Type: GrantFiled: April 30, 2008Date of Patent: December 29, 2009Assignee: Hitachi, Ltd.Inventors: Toru Tanaka, Yuichi Taguchi, Fumi Miyazaki, Yasunori Kaneda
-
Publication number: 20090265511Abstract: In order to store data in disk drives securely in an environment with a mixture of disk drives having write protection mechanisms and disk drives without write protection mechanisms, a different write protection mechanism must be checked for each of the disk drives, and write protection must be defined for each of the disk drives storing data to be saved, which may impose a large load on system administrators. There is provided a storage controller for performing data input/output processing from a computer by managing volumes of multiple storage subsystems as external volumes and by using these external volumes as virtual volumes. In the data input/output processing, write protection is achieved based on an access attribute set for each of the virtual volumes. When an access attribute is set for a virtual volume, the same access attribute is set for an external volume corresponding to the virtual volume. Thus, the write protection is achieved for the external volume corresponding to the virtual volume.Type: ApplicationFiled: April 15, 2009Publication date: October 22, 2009Applicant: Hitachi, Ltd.Inventors: Takahiro Fujita, Fumi Miyazaki, Yasunori Kaneda
-
Patent number: 7600072Abstract: A management computer includes a configuration information acquisition module that acquires a data volume configuration table indicative of a logical connection relationship between structural elements of the data storage apparatus from the data storage apparatus, a transmission path specification module that specifies the structural elements that exist on a transmission path of data which is required to be written by a host computer from the structural elements of the data storage apparatus on the basis of data volume configuration table that is acquired by the configuration information acquisition module, a performance data acquisition module that acquires the performance data of the structural elements that are specified by the transmission path specification module, and a screen transition control module that output the performance data that is acquired by the performance data acquisition module.Type: GrantFiled: December 21, 2005Date of Patent: October 6, 2009Assignee: Hitachi, Ltd.Inventors: Fumi Miyazaki, Yuichi Taguchi, Yasunori Kaneda
-
Publication number: 20090044035Abstract: A management apparatus, a management method, and a storage management system that more specifically manage power consumption, making it easy to analyze problems relating to power consumption or properly relocate data are provided. A power consumption for each of a plurality of memory apparatus groups each consisting of a plurality of memory apparatuses in a storage system is computed based on a performance for each of a plurality of logical storage extents defined in a plurality of storage extents provided by each of the memory apparatus groups, and a value of the power consumption for each of one or more of the memory apparatus groups obtained by the computation is output together with information on an access status of each of the corresponding logical storage extents.Type: ApplicationFiled: September 22, 2008Publication date: February 12, 2009Inventors: Yuichi Taguchi, Fumi Miyazaki, Masayuki Yamamoto, Yasunori Kaneda
-
Patent number: 7444483Abstract: A management apparatus, a management method, and a storage management system that more specifically manage power consumption, making it easy to analyze problems relating to power consumption or properly relocate data are provided. A power consumption for each of a plurality of memory apparatus groups each consisting of a plurality of memory apparatuses in a storage system is computed based on a performance for each of a plurality of logical storage extents defined in a plurality of storage extents provided by each of the memory apparatus groups, and a value of the power consumption for each of one or more of the memory apparatus groups obtained by the computation is output together with information on an access status of each of the corresponding logical storage extents.Type: GrantFiled: October 31, 2005Date of Patent: October 28, 2008Assignee: Hitachi, Ltd.Inventors: Yuichi Taguchi, Fumi Miyazaki, Masayuki Yamamoto, Yasunori Kaneda
-
Publication number: 20080209104Abstract: A first storage system includes a first storage area for storing data written by a computer. A second storage system includes a second storage area to which the data stored in the first storage area migrates. A third storage system includes a virtual storage area corresponding to the second storage area. An access request to the virtual storage area is converted into an access request to the second storage area to be issued. A management computer transmits, to the third storage system, an instruction to migrate the data of the second storage area to a third storage area of the third storage system based on a determination result between a value of the data migrated to the second storage area and a predetermined threshold value.Type: ApplicationFiled: April 30, 2008Publication date: August 28, 2008Applicant: Hitachi, Ltd.Inventors: Toru Tanaka, Yuichi Taguchi, Fumi Miyazaki, Yasunori Kaneda
-
Patent number: 7418546Abstract: Provided is a computer system including a storage subsystem, a host computer, and a management computer for managing the storage subsystem and the host computer. The storage subsystem manages a storage extent by a group unit and creates storage extent configuration information. The management computer stores group management information, obtains the storage extent configuration information, calculates an assigned capacity for each group based on the obtained storage extent configuration information, forecasts a capacity to be assigned in the future for each group based on the calculated assigned capacity, calculates a protection term expired capacity for each group based on the group management information and the storage extent configuration information, and outputs the assigned capacity, the capacity to be assigned in the future, and the protection term expired capacity. Thus, the storage extent of the storage subsystem can easily be managed.Type: GrantFiled: October 26, 2005Date of Patent: August 26, 2008Assignee: Hitachi, Ltd.Inventors: Yuichi Taguchi, Fumi Miyazaki, Masayuki Yamamoto
-
Patent number: 7406577Abstract: It is desirable that data stored in an old storage device is migrated to a new storage device without any interruption. According to a computer system of this invention, in a first data storage device, a second data storage area of a second data storage device is recognized as a virtualized data storage area of the first data storage device, a data copy relation between the first data storage area and the virtualized data storage area is established, the second data storage area is recognized from the computer based on the data copy relation, data is copied from the first data storage area to the virtualized data storage area based on the data copy relation, and after completion of a data copy operation, a connecting path is switched from the first data storage area to the second data storage area based on the data copy relation.Type: GrantFiled: September 7, 2005Date of Patent: July 29, 2008Assignee: Hitachi, Ltd.Inventors: Yasunori Kaneda, Yuichi Taguchi, Fumi Miyazaki, Tooru Tanaka
-
Publication number: 20080133851Abstract: A management server includes the user management segment information having stored therein a volume managed by a user, a receiving unit for receiving a volume allocation request from a management computer, a sending unit for sending the volume allocation request to a storage system and an updating unit for updating the user management segment information based on the information on the allocated volume received from the storage system. The storage system includes a unit for receiving the volume allocation request from the management server, and based on the volume allocation request, allocating the volume from the unallocated volume that can be allocated by all the users.Type: ApplicationFiled: December 28, 2007Publication date: June 5, 2008Applicant: Hitachi, Ltd.Inventors: Fumi MIYAZAKI, Masayasu Asano, Yasunori Kaneda
-
Patent number: 7373469Abstract: A first storage system includes a first storage area for storing data written by a computer. A second storage system includes a second storage area to which the data stored in the first storage area migrates. A third storage system includes a virtual storage area corresponding to the second storage area. An access request to the virtual storage area is converted into an access request to the second storage area to be issued. A management computer transmits, to the third storage system, an instruction to migrate the data of the second storage area to a third storage area of the third storage system based on a determination result between a value of the data migrated to the second storage area and a predetermined threshold value.Type: GrantFiled: October 31, 2005Date of Patent: May 13, 2008Assignee: Hitachi, Ltd.Inventors: Toru Tanaka, Yuichi Taguchi, Fumi Miyazaki, Yasunori Kaneda
-
Patent number: 7330957Abstract: A management server includes the user management segment information having stored therein a volume managed by a user, a receiving unit for receiving a volume allocation request from a management computer, a sending unit for sending the volume allocation request to a storage system and an updating unit for updating the user management segment information based on the information on the allocated volume received from the storage system. The storage system includes a unit for receiving the volume allocation request from the management server, and based on the volume allocation request, allocating the volume from the unallocated volume that can be allocated by all the users.Type: GrantFiled: July 16, 2004Date of Patent: February 12, 2008Assignee: Hitachi, Ltd.Inventors: Fumi Miyazaki, Masayasu Asano, Yasunori Kaneda
-
Publication number: 20070106861Abstract: A management computer includes a configuration information acquisition module that acquires a data volume configuration table indicative of a logical connection relationship between structural elements of the data storage apparatus from the data storage apparatus, a transmission path specification module that specifies the structural elements that exist on a transmission path of data which is required to be written by a host computer from the structural elements of the data storage apparatus on the basis of data volume configuration table that is acquired by the configuration information acquisition module, a performance data acquisition module that acquires the performance data of the structural elements that are specified by the transmission path specification module, and a screen transition control module that output the performance data that is acquired by the performance data acquisition module.Type: ApplicationFiled: December 21, 2005Publication date: May 10, 2007Inventors: Fumi Miyazaki, Yuichi Taguchi, Yasunori Kaneda
-
Publication number: 20070061512Abstract: A management apparatus, a management method, and a storage management system that more specifically manage power consumption, making it easy to analyze problems relating to power consumption or properly relocate data are provided. A power consumption for each of a plurality of memory apparatus groups each consisting of a plurality of memory apparatuses in a storage system is computed based on a performance for each of a plurality of logical storage extents defined in a plurality of storage extents provided by each of the memory apparatus groups, and a value of the power consumption for each of one or more of the memory apparatus groups obtained by the computation is output together with information on an access status of each of the corresponding logical storage extents.Type: ApplicationFiled: October 31, 2005Publication date: March 15, 2007Inventors: Yuichi Taguchi, Fumi Miyazaki, Masayuki Yamamoto, Yasunori Kaneda
-
Publication number: 20070050589Abstract: A first storage system includes a first storage area for storing data written by a computer. A second storage system includes a second storage area to which the data stored in the first storage area migrates. A third storage system includes a virtual storage area corresponding to the second storage area. An access request to the virtual storage area is converted into an access request to the second storage area to be issued. A management computer transmits, to the third storage system, an instruction to migrate the data of the second storage area to a third storage area of the third storage system based on a determination result between a value of the data migrated to the second storage area and a predetermined threshold value.Type: ApplicationFiled: October 31, 2005Publication date: March 1, 2007Applicant: Hitachi, Ltd.Inventors: Toru Tanaka, Yuichi Taguchi, Fumi Miyazaki, Yasunori Kaneda
-
Publication number: 20070033368Abstract: Provided is a computer system including a storage subsystem, a host computer, and a management computer for managing the storage subsystem and the host computer. The storage subsystem manages a storage extent by a group unit and creates storage extent configuration information. The management computer stores group management information, obtains the storage extent configuration information, calculates an assigned capacity for each group based on the obtained storage extent configuration information, forecasts a capacity to be assigned in the future for each group based on the calculated assigned capacity, calculates a protection term expired capacity for each group based on the group management information and the storage extent configuration information, and outputs the assigned capacity, the capacity to be assigned in the future, and the protection term expired capacity. Thus, the storage extent of the storage subsystem can easily be managed.Type: ApplicationFiled: October 26, 2005Publication date: February 8, 2007Applicant: Hitachi, Ltd.Inventors: Yuichi Taguchi, Fumi Miyazaki, Masayuki Yamamoto
-
Publication number: 20070011423Abstract: It is desirable that data stored in an old storage device is migrated to a new storage device without any interruption. According to a computer system of this invention, in a first data storage device, a second data storage area of a second data storage device is recognized as a virtualized data storage area of the first data storage device, a data copy relation between the first data storage area and the virtualized data storage area is established, the second data storage area is recognized from the computer based on the data copy relation, data is copied from the first data storage area to the virtualized data storage area based on the data copy relation, and after completion of a data copy operation, a connecting path is switched from the first data storage area to the second data storage area based on the data copy relation.Type: ApplicationFiled: September 7, 2005Publication date: January 11, 2007Inventors: Yasunori Kaneda, Yuichi Taguchi, Fumi Miyazaki, Tooru Tanaka
-
Publication number: 20060190611Abstract: In a computer system that includes plural host computers and plural data storage apparatuses (storage systems) and performs, in particular, virtualization of a data storage area, unless zoning is performed correctly to activate a zone between a data storage apparatus holding a virtualized data storage area and a device holding a data storage area storing actual data, the storage area storing actual data cannot be used from the host computers. The present invention provides a mechanism for grasping a relation between the virtualized data storage area and the data storage area storing actual data, configuring a zone between data storage apparatuses holding the data storage areas as a special zone, and always activating the special zone at the time of zoning configuration.Type: ApplicationFiled: April 1, 2005Publication date: August 24, 2006Applicant: Hitachi, Ltd.Inventors: Fumi Miyazaki, Yuichi Taguchi, Masayuki Yamamoto, Yasunori Kaneda