Patents by Inventor Naoto Matsunami
Naoto Matsunami 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: 8176248Abstract: This invention provides a user or an operator with a management apparatus or method for displaying logical connection information between an interface connected to a computer and a switch and a storage system or a logical unit in the storage system in a virtual storage system, wherein the switch receives a first access request from said computer, converts said first access request to a second access request to one of said plural storage systems, and sends said second access request to one of said plural storage systems or one logical unit.Type: GrantFiled: September 23, 2011Date of Patent: May 8, 2012Assignee: Hitachi, Ltd.Inventors: Naoto Matsunami, Takashi Oeda, Akira Yamamoto, Yasuyuki Mimatsu, Masahiko Sato
-
Publication number: 20120084529Abstract: A file system including: a first type storage medium; a second type storage medium; and a processor providing a file system using a first area in the first type storage medium and a second area in the second type storage medium, wherein the processor manages whether metadata is permitted to be stored in each of the first area and second area, stores a first file and first metadata of the first file in the first area, which is managed to permit storing metadata, migrates the first file stored in the file system to the second area, which is managed not to permit storing metadata, and changes the first metadata stored in the first area to point to a location of the first file in the second area.Type: ApplicationFiled: December 12, 2011Publication date: April 5, 2012Inventors: Yusuke NONAKA, Akira Yamamoto, Naoto Matsunami, Koji Sonoda
-
Patent number: 8131922Abstract: The storage system includes a disk controller for receiving write commands from a computer, and a plurality of disk devices in which data is written in accordance with the control of the disk controller. The size of the first block which constitutes the data unit handled in the execution of the input/output processing of the data in accordance with the write command by the disk controller is different from the size of the second block which constitutes the data unit handled in the execution of the input/output processing of data by the plurality of disk devices. The disk controller issues an instruction for the writing of data to the disk devices using a third block unit of a size corresponding to a common multiple of the size of the first block and the size of the second block.Type: GrantFiled: April 1, 2011Date of Patent: March 6, 2012Assignee: Hitachi, Ltd.Inventors: Ikuya Yagisawa, Naoto Matsunami
-
Patent number: 8103902Abstract: To provide a storage apparatus in which a plurality of drives in a unit are separately treated and the unit can be easily exchanged for another unit even when RAID groups are freely composed. The storage apparatus includes a plurality of drive cases in each of which a plurality of units are detachably mounted, each of the units including a plurality of drives that are detachably, and a controller case in which a disk control section is provided, wherein the disk control section comprises a RAID group creation section for creating a RAID group using the plurality of disks and an exchange indicating section for giving a notice that a unit is ready to exchange after rebuilding or copying of data in disks included in the unit at the time of exchange of the unit.Type: GrantFiled: September 16, 2008Date of Patent: January 24, 2012Assignee: Hitachi, Ltd.Inventors: Masahiro Arai, Ikuya Yagisawa, Yoichi Mizuno, Naoto Matsunami
-
Publication number: 20120011321Abstract: This invention provides a user or an operator with a management apparatus or method for displaying logical connection information between an interface connected to a computer and a switch and a storage system or a logical unit in the storage system in a virtual storage system, wherein the switch receives a first access request from said computer, converts said first access request to a second access request to one of said plural storage systems, and sends said second access request to one of said plural storage systems or one logical unit.Type: ApplicationFiled: September 23, 2011Publication date: January 12, 2012Applicant: Hitachi, Ltd.Inventors: Naoto Matsunami, Takashi Oeda, Akira Yamamoto, Yasuyuki Mimatsu, Masahiko Sato
-
Publication number: 20120011396Abstract: One code (a compressed redundant code) is created based on a plurality of first redundant codes, each created on the basis of a plurality of data units, and this compressed redundant code is written to a nonvolatile storage area. This compressed redundant code is used to restore either a data element constituting a multiple-failure data, or a first redundant code corresponding to the multiple-failure data, which is stored in an unreadable sub-storage area of a partially failed storage device, and to restore the data element constituting the multiple-failure data which is stored in a sub-storage area of a completely failed storage device, based on the restored either data element or first redundant code, and either another data element constituting the multiple-failure data or the first redundant code corresponding to the multiple-failure data.Type: ApplicationFiled: September 16, 2011Publication date: January 12, 2012Inventors: Manabu KITAMURA, Junji Ogawa, Shunji Kawamura, Takao Sato, Naoto Matsunami, Shintaro Ito, Tomohiro Yoshihara, Takuji Ogawa
-
Publication number: 20110314193Abstract: A computer system including a management computer for managing the entire system, an integral apparatus, and a high-level connecting device for connecting the management computer and the integral apparatus is designed so that the management computer retains integral apparatus internal configuration information, configuration information about an integral apparatus to be introduced, that indicates the configuration of the integral apparatus that may possibly be introduced to the system, and lifetime information indicating lifetime of the integral apparatus; obtains connectivity guarantee information indicating whether connectivity between the computer and the storage apparatus is guaranteed or not; selects an integral apparatus to be removed from the system by referring to the lifetime information; selects an integral apparatus to be introduced to the system by referring to the integral apparatus internal configuration information, the configuration information about the integral apparatus to be introduced, anType: ApplicationFiled: June 17, 2010Publication date: December 22, 2011Applicant: HITACHI, LTD.Inventors: Yasunori Kaneda, Yutaka Kudo, Yukio Ogawa, Masakatsu Mori, Tomoki Sekiguchi, Masayuki Yamamoto, Naoto Matsunami
-
Patent number: 8078819Abstract: Network arrangements wherein a network interface receives write requests of files of a file system from a client computer, each file including respective data and respective metadata. A processor registers the metadata of a file to at least one first type storage medium and writes the data of the file to the at least one second type storage medium based on file value information. The storage system stores information of address ranges of an integrated logical unit, in which each address range corresponds to the at least one first type storage medium and the at least one second type storage medium included in the integrated logical unit, and provides the information of address ranges of the integrated logical unit to the client computer.Type: GrantFiled: December 6, 2010Date of Patent: December 13, 2011Assignee: Hitachi, Ltd.Inventors: Yusuke Nonaka, Akira Yamamoto, Naoto Matsunami, Koji Sonoda
-
Patent number: 8051244Abstract: A disk storage system for controlling a plurality of disk devices in multiple disk array systems consisting of disk array switches in a fiber channel connection where the disk devices are organized as multiple logical units. The multiple logical units are mapped between each other to improve high speed operation of the disk storage system and the disk storage system transfers data mutually between the two or more disk array switches improving performance and throughput.Type: GrantFiled: January 28, 2011Date of Patent: November 1, 2011Assignee: Hitachi, Ltd.Inventors: Naoto Matsunami, Takashi Oeda, Akira Yamamoto, Yasuyuki Mimatsu, Masahiko Sato
-
Patent number: 8037245Abstract: One code (a compressed redundant code) is created based on a plurality of first redundant codes, each created on the basis of a plurality of data units, and this compressed redundant code is written to a nonvolatile storage area. This compressed redundant code is used to restore either a data element constituting a multiple-failure data, or a first redundant code corresponding to the multiple-failure data, which is stored in an unreadable sub-storage area of a partially failed storage device, and to restore the data element constituting the multiple-failure data which is stored in a sub-storage area of a completely failed storage device, based on the restored either data element or first redundant code, and either another data element constituting the multiple-failure data or the first redundant code corresponding to the multiple-failure data.Type: GrantFiled: February 6, 2008Date of Patent: October 11, 2011Assignee: Hitachi, Ltd.Inventors: Manabu Kitamura, Junji Ogawa, Shunji Kawamura, Takao Sato, Naoto Matsunami, Shintaro Ito, Tomohiro Yoshihara, Takuji Ogawa
-
Patent number: 7991970Abstract: In the case in which data in a storage system A is remotely copied to a storage system B, it is not taken into account whether the data of the remote copy is WORM data. In the case in which a setting is made such that data stored in a volume in the storage system A is copied to a volume in the storage system B, storage system A judges whether an attribute to the effect that data can be referred to and can be updated or to the effect that data can be referred to but cannot be updated is added to the volume in the storage system A. Then, if the volume is a volume to which the attribute to the effect that data can be referred to but cannot be updated is added, such attribute is added to the volume in the storage system B.Type: GrantFiled: December 9, 2008Date of Patent: August 2, 2011Assignee: Hitachi, Ltd.Inventors: Yusuke Nonaka, Naoto Matsunami, Akira Nishimoto, Yoichi Mizuno
-
Publication number: 20110185123Abstract: A storage device is provided with a file I/O interface control device and a plurality of disk pools. The file I/O interface control device sets one of a plurality of storage hierarchies defining storage classes, respectively, for each of LUs within the disk pools, thereby forming a file system in each of the LUs. The file I/O interface control device migrates at least one of the files from one of the LUs to another one of the LUs of an optimal storage class, based on static properties and dynamic properties of each file.Type: ApplicationFiled: March 18, 2011Publication date: July 28, 2011Applicant: HITACHI, LTD.Inventors: Naoto Matsunami, Koji Sonoda, Akira Yamamoto, Masafumi Nozawa, Masaaki Iwasaki
-
Publication number: 20110185118Abstract: The storage system includes a disk controller for receiving write commands from a computer, and a plurality of disk devices in which data is written in accordance with the control of the disk controller. The size of the first block which constitutes the data unit handled in the execution of the input/output processing of the data in accordance with the write command by the disk controller is different from the size of the second block which constitutes the data unit handled in the execution of the input/output processing of data by the plurality of disk devices. The disk controller issues an instruction for the writing of data to the disk devices using a third block unit of a size corresponding to a common multiple of the size of the first block and the size of the second block.Type: ApplicationFiled: April 1, 2011Publication date: July 28, 2011Inventors: Ikuya YAGISAWA, Naoto MATSUNAMI
-
Publication number: 20110167218Abstract: This invention provides a user or an operator with a management apparatus or method for displaying logical connection information between an interface connected to a computer and a switch and a storage system or a logical unit in the storage system in a virtual storage system, wherein the switch receives a first access request from said computer, converts said first access request to a second access request to one of said plural storage systems, and sends said second access request to one of said plural storage systems or one logical unit.Type: ApplicationFiled: January 28, 2011Publication date: July 7, 2011Applicant: HITACHI, LTD.Inventors: Naoto Matsunami, Takashi Oeda, Akira Yamamoto, Yasuyuki Mimatsu, Masahiko Sato
-
Publication number: 20110167220Abstract: The storage system includes a plurality of first disk devices, a plurality of second disk devices, in which a lifetime of the plurality of second disk devices is different from a lifetime of the plurality of first disk devices, and a controller coupled to the plurality of first disk devices and the plurality of second disk devices. The controller configures a first logical unit by the plurality of first disk devices and a second logical unit by the plurality of second disk devices, provides the first and the second logical units to a host computer, and manages a first remaining available time of the first logical unit and a second remaining available time of the second logical unit, on logical unit basis.Type: ApplicationFiled: February 25, 2011Publication date: July 7, 2011Applicant: HITACHI, LTD.Inventors: Ikuya YAGISAWA, Naoto MATSUNAMI, Akihiro MANNEN, Masayuki YAMAMOTO
-
Patent number: 7970917Abstract: A system renting out file servers to many companies in a data center has a security problem so that the user cannot perform operation needing manager authorization in the file servers. An OS provides execution administrative area information of an application program designated by process information which can specify the range of an accessible device to operate the server system of the customer in the administrative area information.Type: GrantFiled: January 14, 2010Date of Patent: June 28, 2011Assignee: Hitachi, Ltd.Inventors: Takahiro Nakano, Kenichi Miyata, Takashi Horiuchi, Naoto Matsunami, Junichi Hara
-
Patent number: 7941600Abstract: The storage system includes a disk controller for receiving write commands from a computer, and a plurality of disk devices in which data is written in accordance with the control of the disk controller. The size of the first block which constitutes the data unit handled in the execution of the input/output processing of the data in accordance with the write command by the disk controller is different from the size of the second block which constitutes the data unit handled in the execution of the input/output processing of data by the plurality of disk devices. The disk controller issues an instruction for the writing of data to the disk devices using a third block unit of a size corresponding to a common multiple of the size of the first block and the size of the second block.Type: GrantFiled: August 3, 2010Date of Patent: May 10, 2011Assignee: Hitachi, Ltd.Inventors: Ikuya Yagisawa, Naoto Matsunami
-
Patent number: 7937527Abstract: A disk storage system containing a storage device having a record medium for holding the data, a plurality of storage sub-systems having a controller for controlling the storage device, a first interface node coupled to a computer using the data stored in the plurality of storage sub-systems, a plurality of second interface nodes connected to the storage sub-systems, a switch connecting to a first interface node and a plurality of second interface nodes to perform frame transfer therebetween based on node address information added to the frame. The first interface node has a configuration table to store structural information for the memory storage system and in response to the frame sent from the computer, analyzes the applicable frame, converts information relating to the transfer destination of that frame based on structural information held in the configuration table, and transfers that frame to the switch.Type: GrantFiled: September 17, 2009Date of Patent: May 3, 2011Assignee: Hitachi, Ltd.Inventors: Naoto Matsunami, Takashi Oeda, Akira Yamamoto, Yasuyuki Mimatsu, Masahiko Sato
-
Patent number: 7925830Abstract: A disk array includes a drive management unit, which is a program for identifying kinds of disk devices and managing different disk devices separately, and a drive management table for storing information to be utilized by the drive management unit. The disk array further includes a program for managing accumulated time of disk devices. The program includes a drive lifetime setting portion for setting lifetimes of drives, a drive start/stop portion for intentionally starting/stopping ATA disk devices, and an operation time measurement portion for measuring accumulated operation time. Since it is necessary to be conscious of difference in reliability and performance among disk devices when forming a RAID, a drive kind notification unit, which is a program for notifying of the kind of a disk device when forming the RAID, is provided.Type: GrantFiled: March 14, 2008Date of Patent: April 12, 2011Assignee: Hitachi, Ltd.Inventors: Ikuya Yagisawa, Naoto Matsunami, Akihiro Mannen, Masayuki Yamamoto
-
Patent number: 7925851Abstract: A storage device is provided with a file I/O interface control device and a plurality of disk pools. The file I/O interface control device sets one of a plurality of storage hierarchies defining storage classes, respectively, for each of LUs within the disk pools, thereby forming a file system in each of the LUs. The file I/O interface control device migrates at least one of the files from one of the LUs to another one of the LUs of an optimal storage class, based on static properties and dynamic properties of each file.Type: GrantFiled: June 9, 2008Date of Patent: April 12, 2011Assignee: Hitachi, Ltd.Inventors: Naoto Matsunami, Koji Sonoda, Akira Yamamoto, Masafumi Nozawa, Masaaki Iwasaki