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Displaying and Changing DFSR Local Computer Settings

The following VBScript example shows how to use an instance of the DfsrMachineConfig class to display and change DFSR local computer settings.

To run the script, which is in Windows Script Host (WSH) 2.0 XML file format, save the text in a file with a .wsf extension.


<?XML version="1.0" standalone="yes" ?>

<job id="TweakMachineConfig">
<runtime>
    <description>
        This script displays/changes DFSR local computer settings
        through the DFSR WMI Provider.
    </description>
    <named 
        name="Server"
        helpstring="The server to change local computer settings on"
        type="string"
        required="true"
    />
    <named
        name="DebugLogFilePath"
        helpstring="Path where debug log files will be stored"
        type="string"
        required="false"
    />
    <named
        name="MaxDebugLogFiles"
        helpstring="Maximum number of debug log files"
        type="string"
        required="false"
    />
    <named
        name="DebugLogSeverity"
        helpstring="Verbosity level of Debug log"
        type="string"
        required="false"
    />
    <named
        name="MaxDebugLogMessages"
        helpstring="Max. no. of lines per debug log file"
        type="string"
        required="false"
    />
    <named
        name="DsPollingIntervalInMin"
        helpstring="Interval in minutes for polling configuration changes from DC"
        type="string"
        required="false"
    />
    <named
        name="EnableLightDsPolling"
        helpstring="Enable/Disable lightweight polling for configuration changes from DC"
        type="boolean"
        required="false"
    />
    <named
        name="RpcPortAssignment"
        helpstring="Static RPC Server Port for DFSR"
        type="string"
        required="false"
    />
    <named
        name="StagingHighWatermarkPercent"
        helpstring="Staging High Watermark Percent"
        type="string"
        required="false"
    />
    <named
        name="StagingLowWatermarkPercent"
        helpstring="Staging Low Watermark Percent"
        type="string"
        required="false"
    />
    <named
        name="EnableDebugLog"
        helpstring="Enable/Disable Debug Log"
        type="boolean"
        required="false"
    />
    <named
        name="ConflictHighWatermarkPercent"
        helpstring="Conflict And Deleted High Watermark Percent"
        type="string"
        required="false"
    />
    <named
        name="ConflictLowWatermarkPercent"
        helpstring="Conflict And Deleted Low Watermark Percent"
        type="string"
        required="false"
    />
    <named
        name="CurrentSettings"
        helpstring="Display current local computer settings"
        type="simple"
        required="false"
    />
    <named
        name="?"
        helpstring="Display help for this script"
        type="simple"
        required="false"
    />
    
</runtime>
<resource id="DfsrMachineConfig">DfsrMachineConfig</resource>
<resource id="DfsrNamespace">\root\microsoftdfs</resource>

<reference object="Scripting.FileSystemObject"/>
<reference object="WbemScripting.SWbemLocator"/>

<script language="VBScript">
<![CDATA[
    Option Explicit
    
    Dim objWbemDateTime
    Set objWbemDateTime = CreateObject("WbemScripting.SWbemDateTime")
    
    Call Main()
    
    Function WmiDateStringToDate(dtmDate)
        objWbemDateTime.Value = dtmDate
        WmiDateStringToDate = objWbemDateTime.GetVarDate
    End Function

    Sub DisplayWmiObject(objObjectToDisplay)
        Dim objPropValue, objProperty
        Dim strObjectClassName

        strObjectClassName = objObjectToDisplay.Path_.[Class]
        WScript.Echo objObjectToDisplay.Path_.Server & " " & strObjectClassName
        WScript.Echo _
            String(Len(objObjectToDisplay.Path_.Server) + _
                   Len(strObjectClassName) + 1, _
                   "-")
        For Each objProperty In objObjectToDisplay.Properties_
            objPropValue = objProperty.Value
            If ( objProperty.CIMType = wbemCimtypeDatetime ) Then
                objPropValue = WmiDateStringToDate(objPropValue)
            End If
            WScript.Echo objProperty.Name & _
                         Space(40-Len(objProperty.Name)) & _
                         " : " & _
                         objPropValue
        Next
    End Sub
    
    Sub Main
        Dim objNamedArgs
        Dim strComputer
        Dim objWmiService, objDfsrMachineConfig
        Dim objProperty
        Dim blnObjectChanged
    
        Set objNamedArgs   = WScript.Arguments.Named
    
        ' Display help if there are any unnamed arguments in the command line
        If ( WScript.Arguments.Unnamed.Length <> 0 ) Then
            WScript.Arguments.ShowUsage()
            WScript.Quit(1)
        End If
        
        ' Display help if there are not enough arguments, help is requested or
        ' required server argument is not specified
        If ( objNamedArgs.Length < 2 Or _
             objNamedArgs.Exists("help") Or _
             objNamedArgs.Exists("?") Or _
             NOT objNamedArgs.Exists("server") ) Then
            WScript.Arguments.ShowUsage()
            WScript.Quit(1)
        End If
        
        strComputer = objNamedArgs("server")
        
        ' Connect to the target server's DFSR WMI namespace
        ' \\server\root\microsoftdfs
        Set objWmiService = _
            GetObject("winmgmts:\\" & strComputer & getResource("DfsrNamespace"))
    
        ' Get the DfsrMachineConfig singleton instance
        ' from target server
        Set objDfsrMachineConfig = _
            objWmiService.Get(getResource("DfsrMachineConfig") & "=@")
        
        ' Display current settings and quit if requested
        If ( objNamedArgs.Exists("currentsettings") ) Then
            Call DisplayWmiObject(objDfsrMachineConfig)
            WScript.Quit(0)
        End If
        
        ' Change properties as specified in command line
        blnObjectChanged = False
        For Each objProperty In objDfsrMachineConfig.Properties_
            If ( objNamedArgs.Exists(objProperty.Name) ) Then
                ' Here's where you should validate the value specified
                ' in the command line
                WScript.Echo "Setting " & _
                             objProperty.Name & _
                             " to " & _
                             objNamedArgs.Item(objProperty.Name)
                objDfsrMachineConfig.Properties_(objProperty.Name) = _
                    objNamedArgs.Item(objProperty.Name)
                blnObjectChanged = True
            End If
        Next
        
        WScript.Echo vbCrLf
        
        ' Save the changed instance to update DFSR local computer
        ' properties via WMI provider on the target server
        If ( blnObjectChanged ) Then
            Call objDfsrMachineConfig.Put_()
        End If
        
        ' Refresh the instance back from the server
        Set objDfsrMachineConfig = _
            objWmiService.Get(getResource("DfsrMachineConfig") & "=@")
    
        ' Display the new instance
        Call DisplayWmiObject(objDfsrMachineConfig)
        WScript.Quit(0)
    End Sub
    
]]>
</script>

</job>

 

 

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