Fujitsu Corporation

Jvc Kenwood Corporation

Takashi Kawada

Yoshinari Shinozaki

Shinichi Nishizono

Hidenori Yamada

Koji Uchida

Kazuo Nakashima

Kazuyoshi Watanabe

Akihiro Ueda

Osamu Kimura

Ryoko Masuda

Hidemasa Hatano

Chikashi Maeda

Tomohiro Azami

Kazuya Tsukamoto

Masae Toko

Kenji Hattori

Atsushi Takakura

Atsushi Katano

Hirotomo Tokoro

Hajime Kondo

Minoru Maeda

Koji Yamaguchi

Naoto Takeishi

Ryo Miyakuchi

Shinichi Kameyama

Naruhiro Oogai

Hiroto Takegawa

Kanji Miura

Wataru Shirai

A first communication interface communicates with one of a plurality of base station devices according to a first communication scheme. A second communication interface communicates with a further terminal device according to a second communication scheme different from the first communication scheme. A controller selects a base station device that the first communication interface should communicate with based on base station information received in the second communication interface from the further terminal device and related to the base station device that the further terminal device is communicating with.

Terminal device, communication method, and recording medium for performing communication with base station device

A storage system includes a first storage apparatus including a first storage portion and a second storage portion, a second storage apparatus including a third storage portion and a fourth storage portion, and a storage management apparatus including a processor configured to control the first storage apparatus in an active state and control the second storage apparatus in a standby state, cause the first storage apparatus to execute first data relocation processing, cause the second storage apparatus to execute second data relocation processing, cause the first storage apparatus to suspend the first data relocation processing and cause the second storage apparatus to continue the second data relocation processing, switch the first storage apparatus from the active state to the standby state and switch the second storage apparatus from the standby state to the active state, and cause the first storage apparatus to resume the first data relocation processing.

Storage system, storage management apparatus, and non-transitory computer-readable storage medium storing program of controlling data relocation

A storage device including a first memory that stores a plurality of pieces of data a second memory that stores first state information indicating a state of update of the plurality of pieces of data, and a processor coupled to the first memory and the second memory and the processor configured to receive a update request for the plurality of pieces of data stored in the first memory, update a part of the plurality of pieces of data corresponding to the update request in response to an update of a second storage device coupled to the storage device, and update the first state information in response to the update of the plurality of pieces of data.

System and device for synchronizing data in a plurality of devices

While in active state, a first storage apparatus including first and second storage areas copies data stored in the first storage area to the second storage area, copies data stored in the first storage area to a third storage area so that data is synchronized between the first and third storage areas, and copies data stored in the second storage area to a fourth storage area so that data is synchronized between the second and fourth storage areas. When a second storage apparatus including the third and fourth storage areas has transitioned from standby to active state and thereby gets to receive access to the third storage area, instead of to the first storage area, from an external information processing apparatus, the second storage apparatus copies data stored in the third storage area to the fourth storage area, based on setting information stored in a storage unit.

Storage apparatus and storage system

A monitoring server includes a transmission and reception unit that receives information from a first storage device and a second storage device by performing polling to the first storage device and the second storage device at a certain interval, and transmits the received information to the first storage device and the second storage device at next polling. The first storage device and the second storage device includes a failover processing unit that inactivates a communication port when the failover processing unit determines that abnormality has occurred in a communication path between the first storage device and the second storage device and determines, based on the polling from the monitoring server, that abnormality has occurred in a communication path between the storage device and the monitoring server.

Storage system, storage device, and monitoring server

When a redundancy failures occurs in sequentiality-guaranteed data transfer, data transfer in a short period of time is resumed such that wherein when a factor by which the second storage device stops processing of the storage system is multiple failures of the two or more redundant control devices during a process of developing data to a storage medium in the second storage device, a session managing unit sets inconsistency as the copy session state, and a buffer managing unit sets the buffer data lost state, and when a data transfer process is resumed between the first storage device and the second storage device, the session managing unit sets consistency as the copy session state when the buffer data lost state is set by the buffer managing unit.

Storage system, storage control device and data transfer method

An apparatus including: a first storage for storing first data; second storages for storing the first data; a storage controller for storing the first data stored in the first storage into the second storage; a third storage for saving data including second data; a saving device for reading the data and saving the data in the third storage; a data set output device for outputting the data to a copy destination device; a restoration device for storing the data saved in the third storage into available ones of the second storages; and a suspending device for causing the data set output device to output all of the data stored in the second storage to the copy destination device and then suspending the output of the data by the data set output device to the copy destination device to place the data set output device in a suspend state.

Storage apparatus, controller and storage apparatus control method

A storage system includes a first storage unit, a second storage unit and a controller to receive a write request for updated data to a first storage unit from the host and write the updated data into the first storage area, when the controller determines that there is not a free area in a storage area to be processed in the second storage unit, the controller changes the storage area to be processed to another storage area to be processed and instructs change of a storage area to be processed to another storage system to be connected to the host, and the controller reads the updated data from the first storage unit and transmits the updated data and writing destination information relating to the updated data to another storage system for backup.

Storage system and storage system network

A storage apparatus includes a memory that stores data groups, a rearranging unit that rearranges a transmission group order of the data groups based on each of storage positions in a storage device provided in a copy destination storage apparatus in which the each of data groups is to be stored, and a transmitting unit that transmits the data groups rearranged by the rearranging unit to the copy destination storage apparatus.

Storage apparatus, control method for storage apparatus, and storage system

A save control section included in a storage apparatus continuously performs writeback by which a data group is read out from a plurality of storage sections of the storage apparatus and by which the data group is saved in a data group storage section of the storage apparatus, or staging by which a data group saved in the data group storage section is distributed and stored in the plurality of storage sections according to storage areas of the data group storage section which store a plurality of data groups. An output section of the storage apparatus outputs in block a data group including the data stored in each of the plurality of storage sections. The data group storage section has the storage areas for storing a data group.

Storage apparatus and storage apparatus control method

An apparatus includes a first storage unit for storing data received from the upper-layer apparatus in the first storage unit, a second storage unit, a data transmitting unit for transmitting the data stored in the first storage unit to the second storage apparatus based on an order that the data is stored in the first storage unit, a transferring unit for transferring and storing transfer data stored in the first storage unit into the second storage unit when an amount of the data stored in the first storage unit is larger than a predetermined amount, the transfer data being at least part of the data stored in the first storage unit; and, a staging unit for transferring the transfer data stored in the second storage unit into the first storage unit if an amount of the data stored in the first storage unit is smaller than a predetermined amount.

Storage control apparatus and storage control method

A storage apparatus includes a storage module, a memory having areas storing data to be copied to the storage device, a saving buffer for temporarily saving the data stored in the areas, a control module for executing receiving a write request including the data to be stored in the storage apparatus, storing the data included in the write request to the storage module and one area, saving the data stored in the one area to the saving buffer when the number of areas which the copying is executed is not less than the threshold value, copying the data stored in the one area to the storage device or writing the saved data stored in the saving buffer to the one area when the number of areas which the copying is executed is less than the threshold value, determining the threshold value in accordance with an amount of the write request.

Storage apparatus and method for storage apparatus

Pre-update data is copied from a first storage device onto a second storage device in response to an update instruction to update data on the backup target volume on the first storage device. A copy status of each data on the backup target volume is managed with position information of the data mapped thereto. If bad data is present in the data on the backup target volume, the position information indicating the position of the bad data is searched. In accordance with the copy status managed with the position information mapped thereto, it is determined whether the pre-update data of the bad data is stored on the second storage device.

Apparatus and method for controlling copying

A disk array apparatus has a plurality of the same type of disk array units. Each of the disk array units has a plurality of storage areas in each of which firmware for allowing the disk array unit to operate is stored. When the disk array apparatus recognizes that a first disk array unit has been disposed therein, it compares a version number of firmware stored in each storage area included in the first disk array unit with a version number of firmware stored in each storage area included in a second disk array unit that currently operates in the disk array apparatus. If these version numbers are the same, the disk array apparatus makes a storage area in which firmware executed by the first disk array unit is stored conform to a storage area in which firmware executed by the second disk array unit is stored.

Disk array apparatus, and control method and control program recording medium

A disk array device has: a CM separating part that, when abnormality occurs in a CM, separates the CM in which the abnormality has occurred from a storage system after write of CM operation information data to a hard disk is completed; and communication path reconfiguring parts that reconfigure communication paths between the CM in which the abnormality has occurred and DAs. When abnormality occurs in the CM, the communication paths between the CM and the DAs are reconfigured, and after the CM operation information data of the CM is written to the hard disk, the CM is separated. Therefore, the write processing is not interrupted halfway, so that the useful operation information data regarding the cause of the problem occurrence can be written to the hard disk having a sufficient storage area.

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Yokohama, Japan

Takashi Kawada