Abstract: A direction of a dislocation line of a threading dislocation is aligned, and an angle between the direction of the dislocation line of the threading dislocation and a [0001]-orientation c-axis is equal to or smaller than 22.5 degrees. The threading dislocation having the dislocation line along with the [0001]-orientation c-axis is perpendicular to a direction of a dislocation line of a basal plane dislocation. Accordingly, the dislocation does not provide an extended dislocation on the c-face, so that a stacking fault is not generated. Thus, when an electric device is formed in a SiC single crystal substrate having the direction of the dislocation line of the threading dislocation, which is the [0001]-orientation c-axis, a SiC semiconductor device is obtained such that device characteristics are excellent without deterioration, and a manufacturing yield ration is improved.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: A direction of a dislocation line of a threading dislocation is aligned, and an angle between the direction of the dislocation line of the threading dislocation and a [0001]-orientation c-axis is equal to or smaller than 22.5 degrees. The threading dislocation having the dislocation line along with the [0001]-orientation c-axis is perpendicular to a direction of a dislocation line of a basal plane dislocation. Accordingly, the dislocation does not provide an extended dislocation on the c-face, so that a stacking fault is not generated. Thus, when an electric device is formed in a SiC single crystal substrate having the direction of the dislocation line of the threading dislocation, which is the [0001]-orientation c-axis, a SiC semiconductor device is obtained such that device characteristics are excellent without deterioration, and a manufacturing yield ration is improved.

Abstract: In a manufacturing method of a silicon carbide semiconductor device, a silicon carbide substrate is prepared by slicing an ingot that is made of silicon carbide single crystal. The silicon carbide substrate is heat treated for exposing a substrate defect generated at a surface portion of the silicon carbide substrate and the surface portion of the silicon carbide substrate is chemical-mechanical polished in such a manner that the exposed substrate defect is removed. Then, a semiconductor element is formed on the silicon carbide substrate.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: A reliable remote copy system is provided at low costs. The remote copy system includes a first storage system connected to a first upper level computing system to transmit or receive data to or from the first upper level computing system; a second storage system connected to the first storage system to receive data from the first storage system; and a third storage system connected to the second storage system to receive data from the second storage system and connected to a second upper level computing system to transmit or receive data to or from the second upper level computing system. Therefore, failover can be made from the first upper level computing system to the second upper level computing system. As a result, the upper level computing system connected to the second storage system is not required, and an inexpensive remote copy system can be realized.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.

Abstract: Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus and execute an input/output processing of the data for each of the plurality of storage volumes. The method brings one (primary) of the plurality of storage volumes into correspondence with another (secondary) in which a copy of data is to be written when the data is written in the primary volume so as to form a pair group consisting of a plurality of pairs, each having such a primary volume and such a secondary volume.