Distributed parallel is an important research and development field in many years

but the researches and developments are only limited to the inside of the distributed parallel system.The interactions between the server and its outside (such as clients) are performed by only one channel (for instance

a computer).The channel is a bottleneck

limiting the reliability/availability

speed up ratio

efficiency

frequency band and I/O response speed of the system.The nodes of the distributed parallel server with the distributed parallel I/O interface presented in this paper can directly interact on the clients.The client demands over 80 percent are directly sent to the nodes that they can provide required services

while only few demands need dynamical schedule again .The is a broad band network server.The emphasis of the paper is to compare the performances among the distributed paraallel server and single computer server

mirro-image server

two-redundancy computer server and cluster server.The results show that this new server is the best one among these servers.The first version of this server is already researched and developed successfully

it is used

and it will go to market.