DFS-N stands for Distributed File System Namespace and DFS-R stands for Distributed File System Replication. These are two familiar technologies for any Windows administrator. DFS-N provides a simplified view of all file system resources across multiple servers and sites, and DFS-R simplifies it further by replicating content between servers. These two combined together form DFS technology in Windows.
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You can read more about this at http://technet.microsoft.com/en-us/library/jj127250.aspx.
Both these technologies can be managed to a great extent using PowerShell with the help of the DFS-N and DFS-R modules. The DFS-N module was introduced with Windows Server 2012 and the DFS-R module was introduced with Windows Server 2012 R2. So, you need to have Windows Server 2012 R2 installed to get both the modules. These modules are available and are a part of the DFS Management tools that come with the DFS-N or DFS-R roles installation. If...