Abstract: Disclosed is a network system that can distribute connection requests from PPPoE client terminals to specific PPPoE servers under the initiative of the PPPoE servers. In the system that realizes connection between at least one client terminal and plural servers at least by a connection start signal from the client terminal, a connection provision signal from the servers, corresponding to the connection start signal, and a connection request signal from the client terminal, corresponding to the connection provision signal; the servers have an identification information setting means, upon receiving a connection start signal from the client terminal, for setting server identification information for identifying a specific server to receive a connection request signal corresponding to the connection start signal in the connection provision signal.

Abstract: The invention provides a control system for a working vehicle, which can realize higher work performance and better fuel economy in a compatible way. A controller 10 includes table 10a, 10b and tables 10e, 10f for deciding maximum pump absorption torques and engine output torques based on an engine revolution speed, and selectors 10c, 10g for switching over the decided maximum pump absorption torques and engine output torques depending on a work performance mode or a fuel economy mode is selected. A pump absorption torque characteristic for the fuel economy mode is set so as to provide a relative small maximum pump absorption torques TB in a high revolution range, and an engine output characteristic for the fuel economy mode is set so as to provide a relatively small engine output torque in the high revolution range.

Abstract: The present invention provides a high-performance storage access environment to a user who moves around a wide area, while increasing the fault resistance of the system. A plurality of network storages (volumes) is assigned to the user. Then, at the occasion of logging in to a volume by the user, the volume that can be accessed with high performance from a position he made access is located. Addresses at a computer with which user makes access are associated with addresses of the volumes provided by a storage device in advance in an assigned volume management table so as to increase access performance. Then, a management server performs control so that the address of the volume associated with the user access position is returned as a response, at the time of logging in.

Abstract: A computer system identifies jobs affected by a fault which occurs in any device or mechanism in a storage system to control the execution of such jobs. The computer system includes a DBMS server device, a virtualization switch device, and storage device. Each of these devices holds part of data mapping information on a data mapping path from a particular DB table accessed by a job, through a logical volume for storing the table, to physical disk units for distributively storing data on the volume. The management server device acquires the part of data mapping information from each device, and integrates the data mapping information on a job-by-job basis. When any device or mechanism fails on the data mapping path, the management server device identifies jobs affected by the fault with reference to the data mapping information. The management server device also controls the execution of these jobs.

Abstract: The usage of communication systems is improved. An IM server 4 manages presence information regarding each of IM clients and usable media and user information such that each of the IM clients can obtain these kinds of information. In order to perform text chatting, the IM server 4 manages a connection between each of the IM clients participating the chat and the IM server 4, merges text from each of the participating IM clients and distributes the result to each of the participating IM clients. In order to perform voice chatting, an AP server 5 manages a connection between each of the IM clients participating the chat and an MD server 6, mixes voice from each of the participating IM clients except for a focused IM client and distributes the result to the focused participating IM clients. This processing is performed for each of the participating IM clients.

Abstract: Transmission and reception of the identification number to/from an interrogator includes an interrogator that reads a recognition number from a responder by radio. When a clock pulse is modulated on a high-frequency carrier and transmitted to the responder from the antenna of the interrogator, there are a first case when the clock pulse interval is short and a second case when the clock pulse interval is long. By combining the clock pulse of the first case and the clock pulse of the second case so as to control the read of the recognition number from the interrogator, it is possible to realize reduction of the semiconductor chip size of the responder and suppress the cost of the semiconductor chip.

Abstract: An RFIC tag includes an IC chip and a thin metal plate. The IC chip is mounted approximately in the center of a slit part on the thin metal plate. The thin metal plate has connecting parts at both longitudinal-direction ends fixed on a metal member by soldering, and the undersurface of the slit part, which has an L-shaped slit thereon, is lifted a predetermined height from the surface of the metal member. The total length (L2+L1+L2) is ¼ or shorter than the communication wavelength ?.

Abstract: Provided is a technology in which: a request-source storage device provides a request-source server device with a storage area of a disk drive as at least one logical volume; the request-source server device determines, upon receiving a request to back up data stored in a first logical volume, whether a second logical volume which constitutes a copy pair with the first logical volume is present in the request-source storage device; the request-source server device requests, upon determining that the second logical volume is not present, the request-source storage device to produce the second logical volume; and the request-source server device transmits a request to execute a process to back up data stored in the existing or produced second logical volume to the backup storage device to the request-destination server device. Accordingly, data to be stored in a NAS not locally coupled to a backup device is appropriately backed up.

Abstract: For use in a system where a plurality of servers are connected to an external disk device, a method is provided for a server to boot an operating system from the external disk device. The method includes the steps of searching for the port of a network switch to which the server is connected; establishing a network to which only the server and a management server belong; sending a server information acquisition program from the management server to the server via a network boot operation; acquiring, by the server information acquisition program, unique information owned by the storage interface of the server for transfer to the management server; and setting, by the management server, a disk within the external disk device accessible from the server based on the unique information.

Abstract: A radio line is easily influenced in its nature by attenuation or reflection of an electromagnetic wave or the like and the surrounding environment. Due to this fact, a variation of the data transfer speed frequently occurs at the time of image streaming so as to become a hindrance to reproduction of an image at the receiving terminal. A distribution server is provided with a multiplexer for multiplexing information indicating the transmission start time for the image data and a switching unit for switching an image bit rate in response to a request from the receiving terminal. The receiving terminal uses information indicating a transmission start time for the image data, monitors the receiving bit rate and sends out a request for transmission of the most-suitable image bit rate in response to a comparison thereof.

Abstract: An optical circuit board which facilitates a mounting process and provides advantageous aspects of electric interconnection and optical interconnection. An optical circuit board comprises a flexible circuit board composed of a film having a flexibility; one or more electric interconnections provided at the flexible circuit board; one or more optical interconnections provided at the flexible circuit board; an optical transmitter for converting an electric signal supplied at a designated electric interconnection of the electric interconnections provided at the flexible circuit board into an optical signal; and an optical receiver for reconverting the optical signal emitted by the designated electric interconnection provided at the flexible circuit board into an electric signal and for outputting the reconverted electric signal to another electric interconnection.

Abstract: A system and method for managing disk space in a thin-provisioned storage subsystem. If a number of free segments in a free segment pool at a storage subsystem is detected as below a desired minimum, one or more of the following is performed: selecting and adding logical devices (LDEVs) from an internal storage as free segments to the free segment pool, transitioning LDEVs to a virtual device (VDEV), and/or selecting and adding LDEVs from an external storage as free segments to the free segment pool. The transitioning includes identifying partially used or completely used LDEVs and transitioning these to the VDEV. Data migration may also occur by: selecting a source segment at a VDEV for migration, reading data from the source segment, writing the data to a target segment, the target segment being a free segment from the free segment pool, and assigning the target segment to the VDEV.

Abstract: A remote maintenance system is comprised of: a monitoring computer for monitoring a facility; and a monitoring center computer for using maintenance management. The monitoring computer has a database for storing image data of the monitored facility. The monitoring center computer includes: a database for storing CAD data for the monitored facility. The monitoring center computer provides coordinates to the image data sent from the monitoring computer, and superposes the image coordinate data and CAD coordinate data for the CAD. And the center computer locates a needed maintenance spot on the basis of a result of the superposition processing.

Abstract: A gas turbine includes a nozzle vane and a sealing unit engaged with the nozzle vane inside a turbine supplied with combustion gases produced by mixing and burning air for combustion and fuel. The nozzle vane and the sealing unit are disposed in a channel of the downward flowing combustion gases on the outlet side of a gas path. A plurality of engagement portions between the sealing unit and the nozzle vane are provided successively from the upstream side toward the downstream side in a direction of flow of the combustion gases, and a downstream one of the plurality of engagement portions has a contact interface formed in a direction across a turbine rotary shaft. A reduction in the thermal efficiency of the gas turbine can be suppressed.

Abstract: In a system comprising a first storage system providing plural first logical volumes including real logical volume and a virtual logical volume with a host, a second storage system having a second logical volume, and a management computer, when the first storage system receives an access request to the virtual logical volume, it accesses a second logical volume associated with the virtual logical volume. In this system, when the management computer receives a request to guard one of the plural first logical volumes, it checks whether a target first logical volume of the request is a real logical volume or a virtual logical volume, in case of the virtual logical volume, generates and provides a possible at least one option to guard the virtual logical volume by considering a program for volume guard, which each of the first storage system and the second storage system has.

Abstract: A computer is used in a computer system including multiple physical storage areas for storing database data. The database includes component information having a reference item having plural value ranges. The database data is dividable according to value ranges of the reference item. The computer comprises an access frequency obtaining module and a data allocation module. The access frequency obtaining module obtains, for each value range of the reference item in the component information, an estimated access frequency for data of the component information. The data allocation module allocates, based on the obtained estimated access frequency, data of the component information divided according to the value ranges of the reference item to the physical storage areas to be stored.

Abstract: The present invention provides a storage control subsystem that facilitates logical volume access management by a host. Before copying, the host instructs a disk array device to identify the states of target logical volumes and collect information in control memory, whereupon the disk array device reads information in the control memory and reports information relating to the target logical volumes to the host.

Abstract: A motherboard for backplane buses is provided that reduces noise due to entry of external signals into signal wiring which interconnects modules, or noise due to any external signals entering a power supply after being routed around the power supply. An EBG pattern formed up of two wiring regions different from each other in impedance is periodically disposed in at least three arrays as part of the power supply layer(s) constituting a microstripline structure (one layer adjacent to a signal layer is a power supply layer, and the other layer is interposed in air) or a stripline structure (both layers adjacent to a signal layer are power supply layers); the part of the power supply layer(s) not being involved in signal transmission between the modules on the motherboard for backplane buses.

Abstract: When data in the first primary volume is migrated to the second primary volume, an access request from the host to the primary volume is transferred to the second primary volume. Further, the second storage system stores write data received from the host and data of the first primary volume received from the storage system, into the second primary volume. Out of data stored in the second primary volume, the second storage system sends data determined by management information received from the first storage system, to the third storage system.

Abstract: In a communication semiconductor integrated circuit device, an oscillator of a PLL circuit can operate in a plurality of frequency bands. With a control voltage (Vc) of the oscillator fixed to a predetermined value (VDC), an oscillation frequency of the oscillator is measured for each band to be stored in a storage. When the PLL operates, a setting value to specify a band is compared with the measured frequency values stored in the storage. As a result of the comparison, a band to be actually used by the oscillator is determined.