| ## The Filespace The following topics contain guidelines for planning your cell's filespace. The OSF DCE DFS Administration Guide and Reference explains some of these planning considerations in more detail. The filespace begins under the cell root at the /.:/fs junction to DFS from the CDS namespace. The notation /: is set up by default to be equivalent to /.:/fs. Thus, the notation /:/usr/user_name is equivalent to /.:/fs/usr/user_name. Some parts of DFS run in the host machine's kernel. This kernel function must be present on your machine before you run DFS. More: DFS Administrative Domains DFS Administrative Lists Determining the Roles of DFS Machines Setting Up the DFS File Tree Setting Up Filesets Using @sys and @host Variables ###