Fujitsu Corporation

Jun Maeda

Shinya Yamamura

Masaaki Takase

Takeshi Sano

Kenichi Fukuda

Akihiro Inomata

Kazuho Maeda

Yasuo Iwami

Akiko Hiramatsu

A storage device communicably coupled to a host device and another storage device includes a memory and a processor coupled to the memory and configured to: write, in a case where an area release command of a transaction volume is issued from the host device while data backup processing is performed with the another storage device using a generation-managed transmission buffer, the area release command in a first generation of the transmission buffer; and switch, in a case where a range of data write processing requested by the host device overlaps a range specified by the area release command written in the first generation, a generation of the transmission buffer from the first generation to a second generation.

Storage device and storage control method

An information processing device configured to communicate with a plurality of mobile terminals, the information processing device includes a memory and a processor coupled to the memory and configured to acquire, from the plurality of mobile terminals, information related to movements of the plurality of mobile terminals, identify, based on the information, movement patterns of the plurality of mobile terminals, identify, based on the movement patterns, a queue including at least two mobile terminals of the plurality of mobile terminals, identify, based on the information of the mobile terminals included in the queue, a waiting time that elapses before a first mobile terminal that is one of the plurality of mobile terminals and that is included in the queue reaches a head of the queue, and output the identified waiting time.

Information processing device, computer-implemented method of estimating a waiting time, and non-transitory computer-readable storage medium

A storage apparatus performs, in place of a copy process which involves physical resource allocation to a copy destination logical volume, a copy process which allows the copy destination logical volume to refer to an allocation destination managed by a management unit area of a copy source logical volume. A storage unit stores management information relating to the reference destination of the management unit area of the logical volume. A control unit releases the physical resource which has been allocated to the management unit area by exchanging the reference destination of the management unit area specified by a release command from a host computer with the reference destination of the management unit area of the other logical volume corresponding to the specified management unit area.

Storage apparatus and area releasing method

A storage controller including a processor, wherein the processor: performs a copy process in which a destination virtual volume is created by copying a source virtual volume in accordance with a copy instruction, performs a release process in which allocation of a destination storage area to a corresponding area of the destination virtual volume that corresponds to an unallocated area to which a source storage area is not allocated, among areas of the source virtual volume at a time point when the copy instruction is received is released in the copy process, specifies a corresponding area that is an unallocated area including one or more update areas updated before the copy process and the release process after the copy instruction among one or more unallocated areas of the source virtual volume, and suppresses the release relating to the corresponding area that corresponds to the specified unallocated area.

Storage controller, system, and method to control the copy and release processes of virtual volumes

A context information collection and distribution system registers read identification information in a computer device that manages and controls an RFID tag reading device and is located in a lowest hierarchy in wide area network topology. The computer device located in the lowest hierarchy in the wide area network topology notifies a computer device located in a higher management domain hierarchy that the computer device located in the lowest hierarchy manages read identification information of a target. Further, the computer device located in the management domain hierarchy notifies a computer device located in much higher ID system hierarchy that the computer device located in the hierarchy just under the management domain hierarchy manages the read identification information of the target.

Context information collection management system

An information processing apparatus includes a controller. The controller performs a transfer source information generation process for generating transfer source information upon reception of an offload data transfer instruction from a host computer. The controller performs a reserved state setting process for setting, when an instruction to release a release area is received, an overlapping area to a reserved state so as to reserve release of the overlapping area, after issuing a completion response for the release instruction. The controller performs a pending state determination process for determining a pending state in which data transfer using the transfer information might be executed. The controller performs an area release process for releasing the overlapping area which is set to the reserved state and thus is reserved to be released, when the pending state is cancelled.

Information processing apparatus and area release control method

A presence communication system capable of efficiently reducing the number of messages exchanged between presentities and watchers, thereby preventing lowering in communication quality. A presence server sets a group identifier as an identifier which is used to collectively look up a group of multiple pieces of presence information provided by presence information providers who have agreed to a use policy, aggregates and stores the presence information under the group identifier, and delivers the presence information requested to the group identifier. Each presentity provides the presence server with its presence information targeted to the group identifier. Each watcher requests the group identifier for the presence information provided by the presentities, and receives the presence information delivered from the presence server.

Presence communication system

A receiver receives from a client, a participation request indicating that a delivery of a content is desired. An affiliated group-determining unit determines of which group corresponding to the attribute content the attribute of the user, included in the participation request is affiliated. When the other client corresponds to the same desired content and the same affiliated group as that of the participation request source client, and when the other client is already registered in a client database (DB), an access point-deciding unit decides the registered client as a access point of the participation request source client. When the other client is not registered in the client DB, the access point-deciding unit decides a delivering server as the access point of the participation request source client.

Content delivering system, server, and content delivering method

When setting of items to define a graph is requested through an information input section, a menu preparing section, which has an interactive editing function, inquires settable definition items of one of a plurality of graph generating sections, and prepares a menu for an interactive edition to set the settable definition items based on information on the settable definition items which is returned from the associated one of the graph generating sections.

Method and apparatus for setting graph definition items in graph

A communication service simulator simulates communication service specification for a communication network having terminals and server nodes. The terminals of the communication network are registered in association with terminal data. When a called terminal has not been registered as terminal data during a simulation of a communication service specification, a terminal simulator registers the called terminal and the associated terminal data and displays the terminal data on a screen. A history regenerate/display unit displays on the screen any history of the content of a history storage unit. A simulation process controller copies a simulation process and separately executes and displays each of the processes when there is a branch, etc. in a communication service specification. During a simulation of a communication service specification, a sound output unit outputs a preselected sound from a first group of sounds when a preselected sound from a second group of sounds is received by a terminal specified by the identification information stored in a specified terminal identification information storage unit, and outputs a preselected sound from a third group of sounds, for a moment, in synchronism with the change on the screen of the terminal when the preselected sound from the second group of sounds is received by any terminal.

Growing community of inventors

Kawasaki, Japan

Jun Maeda