Abstract: According to the construction requirements of SME (Small and Medium Enterprises) information service platform, in order to solve the problems of decentralized management and low resource utilization caused by traditional SME information system shaft deployment, the overall framework of SME service platform is proposed, and the experimental deployment of SME cloud platform is performed based on OpenStack open source cloud framework. Finally, a preliminary study on the high availability technology of SME service cloud platform. The results show that the platform framework based on basic resource layer, data middle layer, business middle layer and application layer solves the problem of information isolated island caused by traditional information system shaft deployment. And the prototype system based on OpenStack framework verifies that OpenStack is more suitable for building private cloud platform for small and medium-sized enterprises.

Key words: cloud computing, private cloud, OpenStack open source framework, small and medium-sized enterprises