摘要:
A storage control system comprises a first controller connected through a first access route to a first storage; a second controller connected through a second access route to a second storage device; a third controller connected through a third access route to the first storage device; and a fourth controller connected through a fourth access route to the second storage device. For example, if the access destination in accordance with the access instruction received from the host device is the second storage device, the first controller outputs an access request to the second controller. The second controller accesses the second storage device through the second access route in accordance with this access request.
摘要:
A storage device can flexibly apply a dynamic load distribution and a performance expansion to an unexpected peak performance demand changing in a time sequence such as a web server and a contents delivery at the minimum cost. In the storage device, a load condition of a logical volume is measured by a performance measuring mechanism based on a data and command processing amounts transferred by a data transfer mechanism, and contents of the logical volume set in the physical volume are copied to a logical volume set in the auxiliary logical volume by a copy mechanism based on a measurement result of the performance measuring mechanism, and the logical volume set in the auxiliary physical volume copied by the copy mechanism and the logical volume set in the physical volume serving as a copy source are provided as one virtual logical volume in a host, thereby distributing a load from the host.
摘要:
Proposed is a storage apparatus capable of alleviating the burden of maintenance work when a failure occurs in a part configuring the storage apparatus. This storage apparatus includes multiple disk drives and spare disk drives, and multiple controllers. When a failure occurs, this storage apparatus determines the operability status of the storage apparatus based on failure information. When operation can be continued, the storage apparatus continues to operate without performing any maintenance such as part replacement, and if operation cannot be continued, data is migrated to another storage apparatus.
摘要:
A storage control system comprises a first controller connected through a first access route to a first storage; a second controller connected through a second access route to a second storage device; a third controller connected through a third access route to the first storage device; and a fourth controller connected through a fourth access route to the second storage device. For example, if the access destination in accordance with the access instruction received from the host device is the second storage device, the first controller outputs an access request to the second controller. The second controller accesses the second storage device through the second access route in accordance with this access request.
摘要:
A storage device can flexibly apply a dynamic load distribution and a performance expansion to an unexpected peak performance demand changing in a time sequence such as a web server and a contents delivery at the minimum cost. In the storage device, a load condition of a logical volume is measured by a performance measuring mechanism based on a data and command processing amounts transferred by a data transfer mechanism, and contents of the logical volume set in the physical volume are copied to a logical volume set in the auxiliary logical volume by a copy mechanism based on a measurement result of the performance measuring mechanism, and the logical volume set in the auxiliary physical volume copied by the copy mechanism and the logical volume set in the physical volume serving as a copy source are provided as one virtual logical volume in a host, thereby distributing a load from the host.
摘要:
Proposed is a storage apparatus capable of alleviating the burden of maintenance work when a failure occurs in a part configuring the storage apparatus. This storage apparatus includes multiple disk drives and spare disk drives, and multiple controllers. When a failure occurs, this storage apparatus determines the operability status of the storage apparatus based on failure information. When operation can be continued, the storage apparatus continues to operate without performing any maintenance such as part replacement, and if operation cannot be continued, data is migrated to another storage apparatus.
摘要:
A transmission level control method in a wireless local loop system capable of suppressing occurrence of an unnecessarily high transmission level, comprises a step of generating a required reception level corresponding to a classification of data, a step of detecting the reception level of data at a receiver side transceiver apparatus, a step of finding a level difference between the detected reception level and the required reception level corresponding to the classification of the related received data, and a step of controlling a change of the transmission level at a transmitter side transceiver apparatus according to this level difference.
摘要:
There is provided an information processing device that includes: a display portion that displays a plurality of function buttons that respectively correspond to a plurality of functions included in the information processing device; a position detection portion that detects a position where an operating body touches or approaches a display screen of the display portion; a button selection portion that selects, from among the plurality of function buttons, at least one function button that corresponds to an operation state of the information processing device; and a display control portion that causes the function button selected by the button selection portion to move on the display screen such that the function button approaches the position on the display screen detected by the position detection portion.
摘要:
A pattern data examination method and system capable of accurately and speedily examining a circuit pattern without failing to extract pattern contour data are provided. While pattern comparison is ordinarily made by using a secondary electron image, a contour of a pattern element is extracted by using a backscattered electron image said to be suitable for observation and examination of a three dimensional configuration of a pattern element, and pattern inspection is executed by using the extracted contour of the pattern element. More specifically, pattern inspection is executed by comparing a contour of a pattern element with design data such as CAD data to measure a difference between the contour and the data, and by computing, for example, the size of the circuit pattern element from the contour of a pattern. From two or more backscattered electron images formed by detecting backscattered electrons at two or more different spatial positions, pattern contour data contained in the backscattered electron images may be obtained.
摘要:
There is provided a color filter which can be manufactured by a simplified process and which will not short-circuit an electrode of a TFT substrate. The color filter includes a substrate, and a red layer, a green layer and a blue layer, formed on the substrate. When forming the green layer and the blue layer, these layers are not only formed on the substrate, but also laminated on the red layer to form a spacer comprised of the green layer and the blue layer, laminated on the red layer. The color filter further includes a transparent electrode layer which covers the substrate, the red layer, the green layer, the blue layer and the spacer, and an insulating black matrix layer formed on predetermined areas of the transparent electrode layer.