Management of grid resource information is a challenging and important area considering the potential size of the grid and wide range of resources in grid system. These huge amounts of resources often have different structures and functions. How to manage resources effective is an urgent problem for grid technology. WSDM is about defining a common manageability structure and message exchange format, defines a Web service message protocol for management information, and a management interface for a manageable resource present on the Web. Taking a real case of storage grid system, a practice application of grid resource management based on Web Services Distributed Management (WSDM) is given in this paper. This paper also discusses the disadvantages of WSDM application in the area.