A multiprocessor data processing system requires careful management to maintain cache coherency. The storage network may include the storage block and one or more other storage blocks. Further, a backup bonding engine is used to protect the group’s bonding engine. The card edge connector includes a socket for receiving the card edge of the daughter card with the daughter card at an acute angle to the motherboard, to avoid interference between the mezzanine connector on the daughter card and a corresponding mezzanine connector on the motherboard. This polyester film can be advantageously used as support for several imaging elements, such as photographic materials, thermographic materials, and ink jet recording elements.