[Show abstract][Hide abstract] ABSTRACT: One of the most attractive topics of today is server visualization. Sever virtualization is not a new concept. However technologies and market demand are increasing the use of server virtualization amazingly. In this paper, we consider cluster management in virtualized environment to implement the virtualizing up and down model. Thus we identify some design considerations for constructing and managing cluster. And then we show architecture to support clustering of virtual nodes based on the DMTF standards.