There are provided an optical interconnection module and an optical-electrical hybrid board using the same to process optical and electric signals on a board at a low transmission loss at high speed in transmitting high-speed optical signals sent and received between chips or between boards in a data processing apparatus. These aforementioned surface treatments include an ammonium hydroxide and hydrogen peroxide wash, followed by a wash with EDTA which is followed by a wash with ammonium hydroxide and hydrogen peroxide. The messaging network operates independently of the data transfer section and is coupled to the plurality of front end and back end. For the generation of the logical directory and the management of the remote copy, a common management table is used, and the management table is held by all of the nodes.