Abstract: Disclosed is an optical transmission module in which effects of conductive heat from sides of a metal case upon a thermistor are reduced, thereby allowing steady optical beam wavelengths to be obtained over a wide range of temperatures, regardless of the temperature of the usage environment. Specifically, the optical transmission module includes Peltier elements disposed inside a metal case, a metal base disposed upon the Peltier elements, a laser diode substrate disposed upon the metal base, a laser diode disposed upon the laser diode substrate, a thermistor substrate disposed upon the metal base, a thermistor disposed upon the thermistor substrate, and a thermally conductive member, disposed in the vicinity of the thermistor, that has a height greater than the height of the thermistor.

Abstract: In a system where a first storage system and a second storage system are connected to a third storage system, when the first storage system virtualizes and provides a device in the third storage system as a device in its own storage system, update data stored in a cache in the first storage system is written into the device of the third storage system to be reflected, attributes of the device are transferred to the second storage system, and the second storage system virtualizes the device of the third storage system as a device of its own storage system.

Abstract: 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.

Abstract: Provide is a storage system including one or more disk drives, and one or more cache memories for temporarily storing data read from the disk drives or data to be written to the disk drives, in which: the cache memories includes volatile first memories and non-volatile second memories; and the storage system receives a data write request, stores the requested data in the volatile first memories, selects one of memory areas of the volatile first memories if a total capacity of free memory areas contained in the volatile first memories is less than a predetermined threshold, write data stored in the selected memory area in the non-volatile second memories, and changes the selected memory area to a free memory area. Accordingly, there can be realized capacity enlarging of the cache memory using a non-volatile memory device while realizing a high speed similar to that of a volatile memory device.

Abstract: The present invention provides a communication information acquisition creation system 50 used for evaluating a network switch 4 which includes multiple communication ports 41.

Abstract: A dedicated channel entry method for a system of digital wireless communications utilizing time division multiplex access and including a base station for voice transmission with wired connection to a command console for voice input/output and with wireless connection to a plurality of mobile station, including the steps of: executing a first communication procedure for selecting an arbitrary mobile station, a second communication procedure for entry to a dedicated channel, and a third communication procedure for transmitting voices at said command station, respectively from the command console relative to the mobile station; and executing said communication procedures in a desired command to allow the designated mobile station to realize automatic entry to the dedicated channel and receive voices from the command console transmitted via the dedicated channel.

Abstract: A Provider Edge PE3 replicates a received packet and relays these to virtual circuits VC1, VC2 respectively, and Provider Edges PE2, PE2 respectively receive the packets from the virtual circuits VC1, VC2, whereupon the Provider Edges PE2, PE2, on the basis of an agreement between them, decide to handle the received packets such that one of the first edges relays the packet to a Customer Edge CE1 for forwarding to a Host A, while the other edge discards the packet without relaying it to the Customer Edge CE1.

Abstract: Using a snapshot function, a remote copy is efficiently created. Data for a snapshot is converted into a first bitmap of differential data for a remote copy. The conversion is performed in advance at appropriate chronological intervals. Furthermore, when the snapshot function splits, a second bitmap of cascade differential data, which is new differential data, is created simultaneously with creation of the data for the snapshot. This second bitmap of cascade differential data is created in the same format as the first bitmap of differential data for the remote copy. Then, when the snapshot function shifts from split status to pair status, the second bitmap of cascade differential data is added to the first bitmap of differential data for the remote copy (to produce a logical sum), and a remote copy is created based on this bitmap that was added.

Abstract: A storage management apparatus performs migration considering an I/O load that will be generated during migration between a source array group and a destination array group. To migrate data from the source array group to the destination array group, a bandwidth that is available for use between the source and destination array groups is calculated. A volume that is within the source array group, and that has a write I/O amount that is smaller than the calculated bandwidth, is selected as the source volume for the migration, wherein the write I/O amount is the information transmission amount of information that is written. Data is thus migrated from the selected volume to the movement destination array group.

Abstract: The present invention makes is possible to appropriately set the power saving control of the storage device from the management device of the storage device. In addition, the storage device executes control of the power saving for the magnetic disk device after ensuring consistency between an instruction from the administrator and the operating state of the magnetic disk device in the storage device.

Abstract: A system and method for immediate and delayed real-time communication activities using availability data from and communications through an external instant messaging system, that operates to obtain aggregated user online presence information through its own client software, through interception of client-server communications between an external instant messaging client and server, and through other available interfaces to user account information on such external instant messaging systems. The system operates to gather user online presence information in part by intercepting communications between an instant messaging client and the Internet. The aggregate presence data, as well as other information describing the availability of a user, is used to intelligently route real-time communications, such as instant messages and phone calls.

Abstract: A data processing system has a plurality of storage systems. In this system, data replication is performed at high speed and efficiency while maintaining data integrity. In addition, when failure has occurred in a configuration element, the time necessary to resume the data replication is reduced. In accordance with an instruction from first host computer, updating of replication-target data and creation of a journal are performed in a storage system A, and updating of replication data and creation of a journal are performed in a storage system B. A storage system C retrieves a journal from the storage system B in asynchronization with the updating, and performs updating of replication data. When failure has occurred in the storage system B, a journal-retrieving end is altered to the storage system, and the replication data is updated in accordance with the retrieved journal.

Abstract: A queue is configured for accumulating a request to process a program component in an application server even when a naming service is used so as to enable priority control, flow control, or load distribution for component processing. A scheduler is provided between client terminals and a container server. The physical position information of the queue is associated with the logical name of the component, for registration in the naming service. The naming service is referenced for name resolution of the logical name of the component on which the processing request has been made from a client terminal, and stores the processing request on the component in the queue corresponding to the obtained physical position information of the queue. By using the queue, the scheduler can perform priority control, flow control, load distribution control, or the like for processing of the component.

Abstract: Pools of a plurality of types of storage devices are configured and are included in different layers. Based on at least one storage device of the same type, the pools of types corresponding to the type are configured. The controller in the storage system carries out storage location change processing in which the storage location of targeted data that has been stored into the targeted first real page allocated to a virtual page in a virtual volume is changed to the second real page that has not been allocated in a pool of the second type different from a pool of the first type including the targeted first real page in the case in which the controller conforms to the prescribed storage location change conditions. A size of a real page is different depending on a type of a pool.

Abstract: In a semiconductor device, a high-side driver is arranged in a region closer to a periphery of a semiconductor substrate than a high-side switch, and a low-side driver is arranged in a region closer to the periphery of the semiconductor substrate than the low-side switch. By this means, a path from a positive terminal of an input capacitor to a negative terminal of the input capacitor via the high-side switch and the low-side switch is short, a path from a positive terminal of a drive capacitor to a negative terminal of the drive capacitor via the low-side driver is short, and a path from a positive terminal of a boot strap capacitor to a negative terminal of the boot strap capacitor via the high-side driver is short, and therefore, the parasitic inductance can be reduced, and the conversion efficiency can be improved.

Abstract: A thermal type flow sensor measures a flow rate of a fluid by means of a heat resistive element having a temperature dependency. The sensor is comprised of: plural heat resistive elements used for a flow rate measurement; and a driver circuit for controlling a current applied to these heat resistive elements to cause their heating. The driver circuit is configured to sense a resistance change of a lower-temperature side heat resistive element among the plural heat resistive elements and to control the current to be applied to the plural heat resistive elements in accordance with a sensed value of the lower-resistance's variation.

Abstract: A base station control portion selects one or multiple signals in accordance with the state of radio waves from signals received through multiple communication paths. A wireless communication apparatus communicates with a wireless terminal and a wired communication network at multiple frequencies. In response to a request for software upgrading from a network management device, the wireless communication apparatus selects one frequency, controls the state of transmission waves of a wireless interface such that a communication path in which a communication service is being provided can be switched to another communication network without interruption, rewrites software for each wireless interface to software received through a wired interface in advance, and returns the state of transmission waves of the wireless interface. Thus, the software can be upgraded without blackouts of the communication service to the wireless terminal.

Abstract: A server to be changed is added to a destination unit in terms of configuration. The server to be changed is started to restore the database in the database storage region to which the server has access and to restore the transaction for the process that was executed when the server failed. The destination of the failed server (a system destination unit) when failure occurs is determined to stabilize the throughput of the entire system after the switchover of the system in the event of failure. The destination server is determined according to an instruction given in advance by the user. The database management system statistically determines the destination server in accordance with a policy designated by the user. Alternatively, the database management system dynamically determines the destination server according to the policy designated by the user when failure occurs.

Abstract: An apparatus includes a system for guiding chemiluminescence and a system for preventing a variation in dark currents. The apparatus includes a first light shielding BOX having a sample container holder and a shutter unit therein, the shutter unit including a top plate which is partly formed by a movement of a plate member, and a second light shielding BOX having a photodetector therein. While a measurement is not implemented, the shutter unit is closed to block entrance of stray light to the photodetector, and while a measurement is implemented, the plate member is moved to open the shutter unit, and the tip of the photodetector is inserted into a through hole formed in the top plate, so that the distance between the bottom of the sample container and a sensitive area of the photodetector is reduced to several millimeters or less.

Abstract: A technique for determining task allocation for reducing power consumption of an entire system is disclosed. This system includes physical computers, a cooling apparatus for cooling the physical computers, and a power-saving control server for controlling the physical computers and cooling apparatus. The power-saving control server includes a virtual server layout generator which sets up a plurality of sets of task allocations with respect to the physical computers, a server power calculator for calculating power consumption of the physical computers in each task allocation, a physical computer profile used to estimate a heat release amount of the physical computers in each task allocation, a cooling power calculator which computes power consumption of the cooling apparatus, and a virtual server relocator which determines a task allocation with a total of calculated values of the server/cooling power calculators being minimized to be the optimum task allocation for the physical computers.