Abstract: Each of the sites interconnected to one another through a wide area network includes at least one client, a switch device logically disposed between the client and at least one server including a storage device, for providing to the client a file access virtually unifying of a plurality of storage devices, and an analysis device connected to the switch device. The switch device takes log information on the file access from the client. The analysis device determines data to be migrated to the server in a site to which the client belongs or the server in a site in vicinity of the site to which the client belongs, and commands the switch device to migrate the data. The switch device migrates the data based on the command from the analysis device.

Abstract: In order to realize a wider bandwidth of a frequency characteristic of a power amplification circuit, outputs of differential push-pull amplifiers which are matched at respectively different frequencies are combined together by secondary inductors, and the combined signal is outputted.

Abstract: A power amplifier amplifying and compositing differential signals and capable of suppressing harmonics is provided. The power amplifier includes first amplifiers amplifying a first input signal and a second input signal, which are differential signals, a first coil receiving the first input signal and the second input signal amplified by the first amplifiers, a second coil magnetically coupled with the first coil and outputting a composite signal of the amplified first input signal and second input signal, a third coil magnetically coupled with the second coil, and a first capacitor coupled between both ends of the third coil, wherein one end of the first capacitor is coupled to a ground node.

Abstract: A switch device has an object ID rewrite unit and a file access control unit. The object ID rewrite unit, when an original object ID is contained in a reply to be transferred, rewrites the original object ID to an information entraining object ID by inserting server identification information into the original object ID, while when the information entraining object ID is contained in a reply to be transferred, restores the information entraining object ID to the original object ID. The file access control unit includes a table for managing a combination of address information of a server and server identification information, estimating address information of a server corresponding to server identification information contained in an information entraining object of a request to be transferred with reference to the table, and determines a destination of the request on the basis of the address information.

Abstract: An intermediate device which can be introduced and removed in seamless way is disclosed. The state information acquiring means acquires state information required to maintain the state of a session established between the first information processing device and the second information processing device for the information processing service, from the first information processing device or the second information processing device. The intermediate service managing means generates, based on the state information, transfer rules for applying the intermediate service to data of the information processing service, and transferring the data to which the intermediate service is applied. The transfer control means maintains the state of the existing session between itself and the second information processing device, establishes a new session between itself and the first information processing device, and transfers the data using the existing session and the new session, according to the transfer rules.

Abstract: Disclosed is a data management apparatus comprising a message transfer/analysis unit that receives an object data access request from a client and returns a response; an object metadata storage unit that stores, as metadata, a set of ancillary information on data for an object and a data area corresponding to the ancillary information; an object metadata management unit that performs reading, updating, and registration processing for the metadata; a data conversion unit that sends the data access request to a data access unit, extracts object data; and a data access unit that sends a data access command, specified by the data conversion unit, to a file server or a database server and sends response data, received from the file server or the database server, to the data conversion unit.

Abstract: Disclosed is a system in which an index registration unit registers an index, which will be used for search processing, as a partitioned index which is partitioned on a time series basis, and a search means reads indexes older than a specified point in time, which is used as a search base point, to perform search processing, thereby searching for information based on a point in time in the past.

Abstract: A substrate holding unit, a plasma treatment chamber, and a nanoparticle supplying chamber are housed in a single chamber. The substrate holding unit holds a substrate. The plasma treatment chamber includes a gas passage for introducing a source gas to a vicinity of the substrate and a plasma generating unit that generates a plasma from the source gas. The nanoparticle supplying chamber includes a spraying member for spraying a nanoparticle-containing medium onto a surface of the substrate.

Abstract: A semiconductor device and a data storage apparatus are provided. A semiconductor device includes: a cell array configured to have cells for data storage arranged in an array; at least one buffer configured to latch read data of the cell array in units of pages; an output circuit configured to output read data; and a data transfer circuit configured to sequentially transfer read data in units of pages latched in the buffer to the output circuit, wherein the data transfer circuit includes: at least one layer of a scan register train including a plurality of serially connected scan registers having a register and a multiplexer connected to each other to operate for each of clocks, wherein an output of the multiplexer is connected to an input of a register, and an input of a multiplexer is connected to an output of a register in a next previous stage.

Abstract: Disclosed is a system which includes at least one client, a plural number of file servers, each having a file system, and a switch logically arranged between the client and the plural file servers to provide file access services which virtually render the plural file services accessible as a single file system, termed a ‘pseudo file system’, when viewed from the terminal. The switch distributes a command for start of generation of snapshots to the plural file servers, which file servers formulate respective snapshots responsive to the command for start of formation of the snapshots. The switch sets the plural snapshots, generated by the plural file servers, so as to be associated with the file system structure of the virtual file system at the time of formation of the snapshots.

Abstract: Disclosed is a system which includes at least one client, a plural number of file servers, each having a file system, and a switch logically arranged between the client and the plural file servers to provide file access services which virtually render the plural file services accessible as a single file system, termed a ‘pseudo file system’, when viewed from the terminal. The switch distributes a command for start of generation of snapshots to the plural file servers, which file servers formulate respective snapshots responsive to the command for start of formation of the snapshots. The switch sets the plural snapshots, generated by the plural file servers, so as to be associated with the file system structure of the virtual file system at the time of formation of the snapshots.

Abstract: An ILM device manages data arrangement in multiple storage areas to each of which a service level (called SLA), which guarantees a service level to data, is assigned, checks whether the SLA of a storage area satisfies a required service level object (SLO) of data to which the SLO is assigned, and determines the data arrangement so that the data is stored in a storage area whose SLA satisfies the SLO. A data migration execution unit migrates the data in storage based on the data arrangement determined by the ILM device.

Abstract: When a migration object is a stub file, a data migration apparatus, which migrates data from a migration source HSM execution environment to a migration destination HSM execution environment, reads data from migration source secondary storage based on a data storage address in the data migration source secondary storage. This data storage address is stored in the stub file stored in data migration source primary storage. The data migration apparatus writes the data, read from the migration source secondary storage, into migration destination secondary storage according to a rule for storing data into the migration destination secondary storage and reads attribute information on the stub file stored in the migration source primary storage.

Abstract: An intermediate device which can be introduced and removed in seamless way is disclosed. The state information acquiring means acquires state information required to maintain the state of a session established between the first information processing device and the second information processing device for the information processing service, from the first information processing device or the second information processing device. The intermediate service managing means generates, based on the state information, transfer rules for applying the intermediate service to data of the information processing service, and transferring the data to which the intermediate service is applied. The transfer control means maintains the state of the existing session between itself and the second information processing device, establishes a new session between itself and the first information processing device, and transfers the data using the existing session and the new session, according to the transfer rules.

Abstract: A semiconductor device and a data storage apparatus are provided. A semiconductor device includes: a cell array configured to have cells for data storage arranged in an array; at least one buffer configured to latch read data of the cell array in units of pages; an output circuit configured to output read data; and a data transfer circuit configured to sequentially transfer read data in units of pages latched in the buffer to the output circuit, wherein the data transfer circuit includes: at least one layer of a scan register train including a plurality of serially connected scan registers having a register and a multiplexer connected to each other to operate for each of clocks, wherein an output of the multiplexer is connected to an input of a register, and an input of a multiplexer is connected to an output of a register in a next previous stage.

Abstract: Disclosed is a version management device which comprises a file access verification unit that receives a request packet sent from the client and a response packet sent from the server, extracts a processing request and a response result from the packets, and checks if the processing request and the response result match an access pattern corresponding to a file data update processing operation by an application running on the client; a user management unit that manages user information in a format defined for each file access protocol to verify from which user the processing request, included in the request packet from the client, is issued; a version control unit that controls the creation operation of a version management file when it is found that an operation corresponding to processing pattern corresponding to file data update processing by the application running on the client is executed in the file access verification unit; and a setting information management unit that holds operation setting informa

Abstract: Each of the sites interconnected to one another through a wide area network includes at least one client, a switch device logically disposed between the client and at least one server including a storage device, for providing to the client a file access virtually unifying of a plurality of storage devices, and an analysis device connected to the switch device. The switch device takes log information on the file access from the client. The analysis device determines data to be migrated to the server in a site to which the client belongs or the server in a site in vicinity of the site to which the client belongs, and commands the switch device to migrate the data. The switch device migrates the data based on the command from the analysis device.

Abstract: Disclosed is a storage management system including at least one client, a first server having a primary storage, a second server having a secondary storage, and an intermediate device logically arranged between the client and the first and second servers. The primary storage includes a stub file in which there is recorded the position information of the real file migrated from the primary storage to the secondary storage. The intermediate device exercises control so that, when a file access request of the primary storage of a first server, issued by the client, is received by the intermediate device, the intermediate device receives the file access request and, if the file to be accessed is a stub file, and the access request necessitates accessing to the real file, the intermediate device accesses the real file of the secondary storage using the information of the stub file to return a response.

Abstract: Disclosed is a system which includes at least one client, a plural number of file servers, each having a file system, and a switch logically arranged between the client and the plural file servers to provide file access services which virtually render the plural file services accessible as a single file system, termed a ‘pseudo file system’, when viewed from the terminal. The switch distributes a command for start of generation of snapshots to the plural file servers, which file servers formulate respective snapshots responsive to the command for start of formation of the snapshots. The switch sets the plural snapshots, generated by the plural file servers, so as to be associated with the file system structure of the virtual file system at the time of formation of the snapshots.

Abstract: Disclosed is a file access service system including at least one client, a plurality of file servers each having a function for limiting amount of use of a respective storage resource, and a switch apparatus inserted between the client and the plurality of file servers. The switch apparatus, based upon a set value of amount of use of a storage resource that has been set in the switch apparatus, sets a set value that limits amount of use of each storage resource in a respective one of the file servers. The switch apparatus surveys amount of use of each storage resource periodically in each of the file servers and, based upon the result of the survey controls the set value of the amount of use of each storage resource in each of the file servers.