Patent application number | Description | Published |
20080209972 | RADIOACTIVE SUBSTANCE CONTAINER, MANUFACTURING APPARATUS THEREOF AND MANUFACTURING METHOD THEREOF - In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed. | 09-04-2008 |
20110174869 | JOINING METHOD OF HIGH CARBON STEEL FOR ENDLESS HOT ROLLING AND THE APPARATUS THEREFOR - An endless hot rolling material shear-joining method capable of threading hot rolling materials in a finish rolling process without strip breakage by controlling joining conditions for the hot rolling materials in an endless hot rolling process for high carbon steel, and an endless hot rolling plant therefor are disclosed. The shear-joining method for endless hot rolling materials of high carbon steel includes shear-joining high carbon steel metal bars comprising, in terms of weight %, 0.30% to 1.20% C, inevitable impurities, and balance Fe, or comprising 0.15% to 1.5% C containing at least one of Cr, Ni, Mo, V, Ti, W, B, Nb, and Sb, inevitable impurities, and balance Fe, such that a joined surface of the joined metal bars is formed to be inclined in a thickness direction of the metal bars, in a hot rolling plant by a joiner adapted to join the metal bars after overlapping tail part of a leading one of the metal bar and top part of a trailing metal bar. | 07-21-2011 |
Patent application number | Description | Published |
20080263393 | STORAGE CONTROLLER AND STORAGE CONTROL METHOD - Spare disk drives are provided to a chassis for storing storage devices, and, when any one of the storage devices configuring RAID fails, the storage controller copies data of the failed storage device to a spare storage device, and recognizes an additional storage device inserted into the spare disk drive as the spare storage device. Thereafter, when the foregoing storage device fails, the storage controller reproduces data of the failed storage device, copies this data to an additional storage device inserted into the spare disk drive, and recognizes the additional storage device inserted into the spare disk drive as a spare storage device. Subsequently, when the foregoing storage device fails, the storage controller reproduces data of the failed storage device and copies this data to an additional storage device inserted into the spare disk drive. RAID 6 is maintained thereby. | 10-23-2008 |
20090240898 | Storage System and Method of Taking Over Logical Unit in Storage System - A storage apparatus includes a drive unit in which a logical unit is formed, and a controller unit for accessing the logical unit by controlling the drive unit according to an access request sent from a host apparatus. The storage apparatus issues a logical unit takeover request to the other storage apparatuses, allocates a logical unit of another storage apparatus that will accept the transfer of the logical volume to its own logical unit according to a takeover approval sent from other storage apparatuses in response to the takeover request, and thereafter migrates data of the own logical unit to a logical unit of another storage apparatus. Subsequently, the path is switched so that the access request from the host apparatus is given to one of the other storage apparatuses. | 09-24-2009 |
20100077106 | Storage subsystem and remote copy system using said subsystem - Provided is a storage subsystem capable of improving the data processing speed by balancing the load on processors and controllers. This storage subsystem includes a controller for controlling the input and output of data to and from a storage apparatus that provides to a host computer a plurality of logical units to become a storage extent for the host computer to read and write data, processes a command issued by the host computer, and has a storage resource in relation to the logical unit. The controller has a local memory for storing the command, and a processor configured from a plurality of cores for controlling the input and output of data to and from the logical unit to be subject to the input and output of the data based on the command. The local memory stores association information representing the correspondence between the plurality of logical units and the plurality of cores. Each of the plurality of cores processes the command to the logical unit to be handled by a self core based on the association information and executes I/O processing of the data to the logical unit. | 03-25-2010 |
20100122027 | Storage controller - A storage controller of the present invention enables a larger number of storage devices to be mounted while keeping the installation size small. A plurality of sub-storage units are disposed inside a high density-type storage unit. The respective sub-storage units comprise a plurality of hard disk drives, controller, memory, power supply device, and display part. The respective sub-storage units operate independently of one another. A controller creates a management table based on management data acquired from the respective sub-storage units. The user is notified when there is an error in the table contents. A display part lights up in accordance with an indication from a storage unit specification part, notifying the user of the location of the sub-storage unit. | 05-13-2010 |
20110296130 | STORAGE SYSTEM AND METHOD OF TAKING OVER LOGICAL UNIT IN STORAGE SYSTEM - A storage apparatus includes a drive unit in which a logical unit is formed, and a controller unit for accessing the logical unit by controlling the drive unit according to an access request sent from a host apparatus. The storage apparatus issues a logical unit takeover request to the other storage apparatuses, allocates a logical unit of another storage apparatus that will accept the transfer of the logical volume to its own logical unit according to a takeover approval sent from other storage apparatuses in response to the takeover request, and thereafter migrates data of the own logical unit to a logical unit of another storage apparatus. Subsequently, the path is switched so that the access request from the host apparatus is given to one of the other storage apparatuses. | 12-01-2011 |
20120185702 | STORAGE CONTROL APPARATUS TO WHICH THIN PROVISIONING IS APPLIED - A storage control apparatus stores a device attribute that indicates whether a physical storage device that is made to be a basis of a pool of a creation target is an encryption device (a physical storage device that is provided with an encryption function) or an unencryption device (a physical storage device that is not provided with an encryption function) as a pool attribute for the pool. In the case in which a pool attribute that has been stored for a pool with which a virtual volume that is a virtual logical volume of a creation target is associated indicates both of an encryption and an unencryption, the storage control apparatus associates the virtual volume of a creation target with a physical storage device that conforms to an attribute that has been specified as a volume attribute of the virtual volume of a creation target among an encryption device and an unencryption device that are a basis of a pool of the associated destination. The storage control apparatus stores a volume attribute of the virtual volume of a creation target. | 07-19-2012 |
Patent application number | Description | Published |
20080270698 | Data migration including operation environment information of a host computer - A technology that improves the reproducibility of stored data in response to a change in the operation environment of the host computer is provided. Operation environment identification information that identifies the operation environment of the host computer is obtained, the software operation environment identified by the operation environment identification information is obtained as a stored software environment from the host computer | 10-30-2008 |
20090125547 | Storage System for Managing a Log of Access - Provided is a storage system including: a first interface connected to a host computer; a second interface connected to a manager terminal; a control unit connected to the first interface and the second interface and equipping a processor and a memory; and one or more disk drives in which data that is requested to read by the host computer is stored, in which the control unit detects an access from the host computer to the first interface and an access from the manager terminal to the second interface, and generates log data of operations according to the accesses. Accordingly, log data concerning every action and every operation of the storage system is maintained and stored. | 05-14-2009 |
20120239879 | STORAGE SYSTEM FOR MANAGING A LOG OF ACCESS - Provided is a storage system including: a first interface connected to a host computer; a second interface connected to a manager terminal; a control unit connected to the first interface and the second interface and equipping a processor and a memory; and one or more disk drives in which data that is requested to read by the host computer is stored, in which the control unit detects an access from the host computer to the first interface and an access from the manager terminal to the second interface, and generates log data of operations according to the accesses. Accordingly, log data concerning every action and every operation of the storage system is maintained and stored. | 09-20-2012 |