Fujitsu Corporation

Shinnosuke Matsuda

Takanori Ishii

Sadayuki Ohyama

Nina Tsukamoto

Nina Arataki

Yuji Hanaoka

Kentarou Yuasa

Yoko Kawano

Kenji Aoki

Katsuya Niigata

Tomoharu Muro

Kentaro Yuasa

Yoko Okuno

A relay apparatus includes first and second board modules and a bridge module. The first board module is configured to relay the communications among the plurality of electronic devices, the plurality of electronic devices being connected to the first board module. The second board module is configured to relay the communications among the plurality of electronic devices, the plurality of electronic devices being connected to the second board module. The bridge module is configured to communicatively connect the first board module and the second board module.

Relay apparatus

A first control apparatus includes a first communication port that satisfies, among execution conditions about predetermined management processing, a neighboring port condition about a communication port connected to an execution apparatus that performs the management processing. The first control apparatus satisfies, among the executions conditions, a neighboring apparatus condition about a neighboring apparatus that neighbors the execution apparatus. A second control apparatus includes a second communication port that satisfies, among the execution conditions, a connection port condition about a communication port connected to the neighboring apparatus. The second control apparatus satisfies, among the execution conditions, an execution apparatus condition about the execution apparatus. The first and second communication ports of the first and second control apparatuses are connected to each other via a communication cable. The second control apparatus performs the management processing when the second communication port is connected to the first communication port.

Storage system and control apparatus

There is provided a control device which includes a cache memory configured to temporarily store data, a nonvolatile memory configured to store a copy of the data stored in the cache memory, a battery configured to supply power to the cache memory in a case of a power failure, a data save processing unit configured to save data stored in a backup target region of the cache memory to the nonvolatile memory in the case of the power failure, and a charge control unit configured to charge the battery up to a target amount of charge which is determined on the basis of a size of the backup target region.

Control device, power supply device, and method for controlling power

A storage device includes a first measurement unit, a second measurement unit, and a collection unit. The first measurement unit measures electric power consumed in each of a plurality of memory devices. The second measurement unit measures electric power consumed in a control unit controlling access from an information processing apparatus to the plurality of memory devices. The collection unit collects first information regarding the electric power measured by the first measurement unit and second information regarding the electric power measured by the second measurement unit.

Storage device, connection device, and storage control method for measuring electric power consumed in a control unit and plurality of memory devices

A storage apparatus that includes a power supply unit that supplies power to a controller when power supply from the outside to a storage apparatus stops, a surplus power determination unit that determines surplus power that is power, which is to be supplied by the power supply unit and by which power for the saving of data into a nonvolatile memory is exceeded, a target voltage determination unit that determines a first target voltage based on the surplus power, and a charging processing unit that carries out a charging process for the power supply unit with a first current value until the first target voltage reached and that carries out a charging process for the power supply unit with a second current value lower than the first current value until a second target voltage higher than the first target voltage is reached from the first target voltage.

Storage apparatus, control apparatus and control method

A monitoring device includes a detection unit which is inserted between the device to be monitored and a processing apparatus performing processing for the device to be monitored and detects a failure which occurs in the device to be monitored, a notification unit generating failure information indicating a content of the failure detected by the detection unit and notifying the generated failure information and the occurrence of the failure to the processing apparatus, and an acquisition unit acquiring status information after the occurrence of the failure of the device to be monitored from the device to be monitored and storing the acquired status information in a storage unit as the failure occurs.

Monitoring device, information processing apparatus, and monitoring method

An information processing apparatus includes a battery for providing the interior of the information processing apparatus with power; a volatile memory for storing data; a nonvolatile memory for backupping the data stored in the volatile memory; a controller for controlling backup of the data in accordance with a process comprising the steps of: saving the data into the nonvolatile memory; upon recovery of the power from the external power source, writing back the data into the volatile memory; and deleting the data saved in the nonvolatile memory; wherein when the power from an external power source to the information processing apparatus is stopped during deleting data in the nonvolatile memory, the controller selectively writes back deleted data from the volatile memory into the nonvolatile memory.

Information processing apparatus and data backup method

A backup method makes a backup of cache data to a nonvolatile memory by using a controller, the cache data being stored in the volatile memory. The backup method includes writing the cache data stored in the volatility memory in a selected area of the nonvolatile memory, generating party data by operating the parity operations between each of the predetermined parts of the cache data in the volatile memory, verifying whether an error found in the part of the cache data in the nonvolatile memory can be recovered by using the parity data, and rewriting the part of the cache data when the error found in the part of the cache data in the nonvolatile memory cannot be recovered by using the parity data in an area of the nonvolatile memory different from the selected area.

Backup method and disk array apparatus

A storage system includes a housing, a cooling unit cooling the interior of the housing, and a plurality of control units adapted to control the cooling unit. The control units each include a mount state acquisition unit acquiring a mount state of the control unit in the housing, an operation state acquisition unit acquiring an operation state of the cooling unit, and a determining unit determining a provisional main control unit, from among the plurality of control units, that is operable to control the entire cooling unit based on information acquired from the mount state acquisition unit and the operation state acquisition unit.

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

In a send engine of a protocol/DMA control circuit, a descriptor control circuit obtains a descriptor, and notifies the information of the descriptor to each circuit. A dummy/padding generation circuit generates a data pattern according to the instruction of the descriptor. A write control circuit performs data transfer using the generated data pattern as a dummy transfer data according to the instruction of the descriptor. The write control circuit also inserts the generated data pattern into the transfer data as a padding data according to the instruction of the descriptor, and performs data transfer.

DMA circuit with pattern generation unit for DMA verification

A data transfer apparatus receives comparison data to be compared with stored data from an external unit, searches data corresponding to the comparison data from among the stored data, and transfers the searched data to the external unit. A control unit generates comparison-condition information for searching predetermined stored data from a data storing memory. A comparison-data storing unit stores the received comparison data. A comparison-condition storing unit stores the generated comparison-condition information. A transfer processing unit transfers the searched stored-data to the external unit.

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Kawasaki, Japan

Shinnosuke Matsuda