USAGE: Dfsutil /RootScalability is an expert-only option to increase performance of large deployments of DFS namespaces. ...

Windows 7

USAGE:
Dfsutil /RootScalability is an expert-only option to increase performance of large deployments
of DFS namespaces. When set, network traffic among DFS root servers is kept to a 
minimum. In addition, there will be less traffic between the primary DC and DFS servers.
The drawback is that users may see outdated information from dfs servers at times.
  
Usage: 
dfsutil /RootScalability /Root: /Enable|Disable|Display [/Verbose]

    /Root: - Path of DFS Root affected.
    /Display - See if root-scalability feature is enabled currently or not.
    /Enable - Enable root-scalability.
    /Disable - (Default behavior) Tighter synchronization between DFS servers and DCs.
    /Verbose - Show additional information while the tool is executing.    

Notes:
1) One of Enable, Disable, Display must be specified.
2) The path specified must be a root, not a link.
3) This has no effect on stand-alone roots.
4) This feature is only supported on Windows Server 2003 and higher.
5) When RootScalability is enabled, it is not uncommon to see an event log message such as,
"DFS could not access its private data from the DS...". While this error may still indicate a problem
in DS connectivity, typically this occurs because the nearest DC has outdated DFS information
(expected behavior when RootScalability is enabled).

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