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Tsutomu Koga

Tsutomu Koga, Matsuda JP

Patent application numberDescriptionPublished
20090031150Storage controller and method for controlling the same - A storage controller that can maintain its performance and reduce power consumption and thereby realize large capacity and low power consumption, and a method for controlling such a storage controller are provided.01-29-2009
20090063901Storage system that finds occurrence of power source failure - One or more switches are interposed between a controller portion and a storage device. When transmission of a command to a certain storage device fails, a command is transmitted starting from an upstream side to a downstream side of a path between the controller portion and the switch to which the certain storage device is connected, and when command transmission fails while transmitting a command from a k03-05-2009
20090204743STORAGE SUBSYSTEM AND CONTROL METHOD THEREFOF - Provided is a storage subsystem capable of inhibiting the deterioration in system performance to a minimum while improving reliability and availability. This storage subsystem includes a first controller for controlling multiple drive units connected via multiple first switch devices, and a second controller for controlling the multiple drive units connected via multiple second switch devices associated with the multiple first switch devices. This storage subsystem also includes a connection path that mutually connects the multiple first switch devices and the corresponding multiple second switch devices. When the storage [sub]system detects the occurrence of a failure, it identifies the fault site in the connection path, and changes the connection configuration of the switch device so as to circumvent the fault site.08-13-2009
20100325484STORAGE SYSTEM THAT FINDS OCCURRENCE OF POWER SOURCE FAILURE - One or more switches are interposed between a controller portion and a storage device. When transmission of a command to a certain storage device fails, a command is transmitted starting from an upstream side to a downstream side of a path between the controller portion and the switch to which the certain storage device is connected, and when command transmission fails while transmitting a command from a k12-23-2010
20110283037INFORMATION PROCESSING APPARATUS AND DATA TRANSFER METHOD - An object is to provide an information processing apparatus capable of improving the availability as a system while improving the reliability of a data transfer path and a data transfer method. An information processing apparatus has a data transfer path branching in a tree structure, from a root node to a plurality of nodes while communicably coupling therebetween and transmitting serial data between the root node and the plurality of nodes, including two internode data transfer paths provided between at least a pair of nodes of the plurality of nodes, through which serial data transfer is performed; and a routing processing unit provided to each terminal nodes that are the nodes on both ends of the internode data transfer path, transfers the return data from the transmission destination node to the transmission source node by using the same internode data transfer path as the internode data transfer path used for data transfer to the transmission destination node, when each of the terminal nodes transfers data received from any of another nodes being a transmission source to any of the nodes being a transmission destination via the other terminal node.11-17-2011
20110320886STORAGE SYSTEM THAT FINDS OCCURRENCE OF POWER SOURCE FAILURE - One or more switches are interposed between a controller portion and a storage device. When transmission of a command to a certain storage device fails, a command is transmitted starting from an upstream side to a downstream side of a path between the controller portion and the switch to which the certain storage device is connected, and when command transmission fails while transmitting a command from a k12-29-2011

Patent applications by Tsutomu Koga, Matsuda JP

Tsutomu Koga, Toyko JP

Patent application numberDescriptionPublished
20110246711STORAGE CONTROLLER AND METHOD FOR CONTROLLING THE SAME - A storage controller that can maintain its performance and reduce power consumption and thereby realize large capacity and low power consumption, and a method for controlling such a storage controller are provided.10-06-2011