Abstract: A method, apparatus and program storage device for verifying existence of a redundant Fiber Channel path is disclosed. The present invention verifies that a redundant path exists prior to moving the WWNN and WWPN. Thus, if the path being used for Fiber Channel communication is lost, connectivity can be restored when the source of the original connection can access the physical interface where the WWNN and WWPN have been moved.

Abstract: A surface laminar circuit board includes an insulating layer, and a signal ground conductive layer disposed on an upper surface of the insulating layer. The conductive layer has a hole formed therein. A photosensitive dielectric layer is disposed on an upper surface of the signal ground conductive layer. The dielectric layer has a photo micro-via formed therein. A signal trace is disposed on the photosensitive dielectric layer, and is electrically coupled with the signal ground conductive layer by way of the photo micro-via. A conductive pad is provided, which has a majority thereof within an area defined by an outer periphery of the hole. The conductive pad is electrically coupled with the signal trace. A surface mounted component is mounted on the conductive pad.

Abstract: A method, apparatus and program storage device for verifying existence of a redundant Fibre Channel path is disclosed. The present invention verifies that a redundant path exists prior to moving the WWNN and WWPN. Thus, if the path being used for Fibre Channel communication is lost, connectivity can be restored when the source of the original connection can access the physical interface where the WWNN and WWPN have been moved.

Abstract: A surface laminar circuit board includes an insulating layer, and a signal ground conductive layer disposed on an upper surface of the insulating layer. The conductive layer has a hole formed therein. A photosensitive dielectric layer is disposed on an upper surface of the signal ground conductive layer. The dielectric layer has a photo micro-via formed therein. A signal trace is disposed on the photosensitive dielectric layer, and is electrically coupled with the signal ground conductive layer by way of the photo micro-via. A conductive pad is provided, which has a majority thereof within an area defined by an outer periphery of the hole. The conductive pad is electrically coupled with the signal trace. A surface mounted component is mounted on the conductive pad.

Abstract: A surface laminar circuit board includes an insulating layer, and a signal ground conductive layer disposed on an upper surface of the insulating layer. The conductive layer has a hole formed therein. A photosensitive dielectric layer is disposed on an upper surface of the signal ground conductive layer. The dielectric layer has a photo micro-via formed therein. A signal trace is disposed on the photosensitive dielectric layer, and is electrically coupled with the signal ground conductive layer by way of the photo micro-via. A conductive pad is provided, which has a majority thereof within an area defined by an outer periphery of the hole. The conductive pad is electrically coupled with the signal trace. A surface mounted component is mounted on the conductive pad.

Abstract: A disk drive provides a defect list for each recording surface itemizing selected areas of recording surface by location, size and graded by an expected abnormal error rate. The defect list is utilized upon formatting of a recording surface to rate sectors as available or unavailable depending upon a map of data types to be written to the sectors and alignment of the map to the defects.