摘要:
The invention efficiently mounts substrates to back planes and accomplishes high quality signal transfer. Connectors to which N adaptor substrates are fitted and connectors to which M bus switch substrates are fitted are provided to a multi-layered back plane. Signal pin groups of the connector on the adaptor substrate side are grouped into M data paths. Signal pins of the connector on the adaptor substrate side and corresponding signal pins of the connector on the bus switch substrate side are arranged horizontally in such a fashion as to exist on the same plane (with positions in a Z direction being substantially equal). Therefore, wiring patterns for connecting corresponding signal pins can be formed substantially linearly and a large number of substrates can be efficiently mounted to a limited area.
摘要:
The invention efficiently mounts substrates to back planes and accomplishes high quality signal transfer. Connectors to which N adaptor substrates are fitted and connectors to which M bus switch substrates are fitted are provided to a multi-layered back plane. Signal pin groups of the connector on the adaptor substrate side are grouped into M data paths. Signal pins of the connector on the adaptor substrate side and corresponding signal pins of the connector on the bus switch substrate side are arranged horizontally in such a fashion as to exist on the same plane (with positions in a Z direction being substantially equal). Therefore, wiring patterns for connecting corresponding signal pins can be formed substantially linearly and a large number of substrates can be efficiently mounted to a limited area.
摘要:
There are provided a cache region that stores write data from a host device, storage media, a data storage region for the storage media, and a comparison unit. A first comparison object is generated for N items of write data on the cache region and the N items of write data are transferred to the data storage region. Write data is read from a designated address of the data storage region and this write data is written to the storage media. When N items of write data have been read, a second comparison object is generated in respect of the write data. The comparison unit compares the first comparison object and the second comparison object, and if the result of the comparison is a mismatch, the N items of write data on the cache region are again transferred to the data storage region.
摘要:
A backplane has signal connectors for connecting signals of logical boards connected to an upper level of the backplane; signal connectors for connecting signals of logical boards connected to a lower level of the backplane; power source connectors for supplying power to the logical boards connected to the upper level of the backplane; and power source connectors for supplying power to the logical boards connected to the lower level of the backplane. Some power source connectors are formed at one end of the backplane and the other power source connectors are formed at the other end of the backplane.
摘要:
A backplane has signal connectors for connecting signals of logical boards connected to an upper level of the backplane; signal connectors for connecting signals of logical boards connected to a lower level of the backplane; power source connectors for supplying power to the logical boards connected to the upper level of the backplane; and power source connectors for supplying power to the logical boards connected to the lower level of the backplane. Some power source connectors are formed at one end of the backplane and the other power source connectors are formed at the other end of the backplane.
摘要:
A backplane has signal connectors for connecting signals of logical boards connected to an upper level of the backplane; signal connectors for connecting signals of logical boards connected to a lower level of the backplane; power source connectors for supplying power to the logical boards connected to the upper level of the backplane; and power source connectors for supplying power to the logical boards connected to the lower level of the backplane. Some power source connectors are formed at one end of the backplane and the other power source connectors are formed at the other end of the backplane.
摘要:
The invention proposes a storage apparatus and conversion board that can increase the number of hard disk drive heads in a given, limited space for installation of disk units in the storage apparatus, and can consequently improve data read/write performance.A storage apparatus has a plurality of first disk units of a specific size, each removable, and a controller that controls data read/write from/to the first disk units, and the storage apparatus includes: external connectors, each provided in corresponding positions where the first disk units are installed, and physically and electrically connected with the first disk units installed in a specific state; and a removable conversion unit provided in one or more of the external connectors, and used for installing, in the position where one or more of the first disk units are to be installed, a larger number of second disk units, each smaller in physical size, than the one or more first disk units.
摘要:
The invention proposes a storage apparatus and conversion board that can increase the number of hard disk drive heads in a given, limited space for installation of disk units in the storage apparatus, and can consequently improve data read/write performance.A storage apparatus has a plurality of first disk units of a specific size, each removable, and a controller that controls data read/write from/to the first disk units, and the storage apparatus includes: external connectors, each provided in corresponding positions where the first disk units are installed, and physically and electrically connected with the first disk units installed in a specific state; and a removable conversion unit provided in one or more of the external connectors, and used for installing, in the position where one or more of the first disk units are to be installed, a larger number of second disk units, each smaller in physical size, than the one or more first disk units.
摘要:
There are provided a cache region that stores write data from a host device, storage media, a data storage region for the storage media, and a comparison unit. A first comparison object is generated for N items of write data on the cache region and the N items of write data are transferred to the data storage region. Write data is read from a designated address of the data storage region and this write data is written to the storage media. When N items of write data have been read, a second comparison object is generated in respect of the write data. The comparison unit compares the first comparison object and the second comparison object, and if the result of the comparison is a mismatch, the N items of write data on the cache region are again transferred to the data storage region.
摘要:
An optical sheet including a fly-eye lens is provided. This optical sheet can exhibit excellent optical functions, including desired light condensing ability, light diffusing ability and ability for rendering a light source image substantially invisible, as well as can be produced with high reproducibility. In one example, the optical sheet (40) includes: a sheet-like main body (45); first unit shaped elements (50) arranged on one surface (46) of the main body and constituting together the fly-eye lens; and second unit shaped elements (55) arranged on the one surface of the main body and extending in parallel with one direction on the sheet surface of the main body. In this case, the first unit shaped elements are arranged, with a space provided therebetween, on the one surface of the main body, while the second unit shaped elements are arranged, between the first unit shaped elements, on the one surface of the main body.