Abstract: In CC-NUMA architecture that is widely adopted by high performance calculation, IO resources are distributed among the nodes. They are managed and maintained dispersedly. This kind of organization is subject to some latent troubles. First, the troubles are analyzed and then a new organization of IO resources in CC-NUMA system is put forward, based on some available techniques of IO bus and storage network. In addition, the design details of key modules are depicted. Finally, the design with the system platform is verified and the outcome proves that the new IO system is efficient.