DHCP Server 2012 Failover Server Relationship Health Data Source Module

Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher.DS (DataSourceModuleType)

Knowledge Base article:

Element properties:

Member Modules:

Overrideable Parameters:

Source Code:

<DataSourceModuleType ID="Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher.DS" Accessibility="Public" Batching="false">

  <Configuration>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ComputerName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="IntervalSeconds" type="xsd:integer"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SyncTime" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="TimeoutSeconds" type="xsd:integer"/>

  </Configuration>

  <OverrideableParameters>

    <OverrideableParameter ID="IntervalSeconds" Selector="$Config/IntervalSeconds$" ParameterType="int"/>

    <OverrideableParameter ID="SyncTime" Selector="$Config/SyncTime$" ParameterType="string"/>

    <OverrideableParameter ID="TimeoutSeconds" Selector="$Config/TimeoutSeconds$" ParameterType="int"/>

  </OverrideableParameters>

  <ModuleImplementation Isolation="Any">

    <Composite>

      <MemberModules>

        <DataSource ID="Schedule" TypeID="System!System.SimpleScheduler">

          <IntervalSeconds>$Config/IntervalSeconds$</IntervalSeconds>

          <SyncTime>$Config/SyncTime$</SyncTime>

        </DataSource>

        <ProbeAction ID="Probe" TypeID="Windows!Microsoft.Windows.PowerShellPropertyBagTriggerOnlyProbe">

          <ScriptName>GetDHCPServer2012FailoverServerWatcher.ps1</ScriptName>

          <ScriptBody><Script>

                                    

                                        param ([String] $PrincipalName)

                                        $SCRIPT_NAME = "DHCP2012FailoverServerWatcherProbe"

                                        $ErrorActionPreference = "Stop"



# Event type constants

$EVENT_TYPE_LOG = 0

$EVENT_TYPE_ERROR = 1

$EVENT_TYPE_WARNING = 2

$EVENT_TYPE_INFORMATION = 4



# Typed property bag constants

$PROPERTY_TYPE_ALERT = 0

$PROPERTY_TYPE_EVENT = 1

$PROPERTY_TYPE_PERFORMANCE = 2

$PROPERTY_TYPE_STATE = 3



# State type constants

$STATE_SUCCESS = "Success"

$STATE_WARNING = "Warning"

$STATE_ERROR = "Error"



$momAPI = new-object -comObject MOM.ScriptAPI

Write-Host "$SCRIPT_NAME - Executing DHCP Failover 2012 Probe Powershell Script"



try

{

    $DHCPFailoverWatchers = Get-DhcpServerv4Failover -ComputerName $PrincipalName



    if ($DHCPFailoverWatchers -ne $null)

    {



	    if($DHCPFailoverWatchers.Count -eq $null)

	    {

		    $FailoverCount = 1

	    }

	    else

	    {

		    $FailoverCount = $DHCPFailoverWatchers.Count

	    }



    	if ($FailoverCount -eq 0)

    	{

    	    Write-Host "$SCRIPT_NAME - No DHCP Failover configured in this DHCP Server 2012"

			exit

	    }

	    else

	    {

	      if ($FailoverCount -gt 0)

	      {

		  		$ErrorNumber = 0

		        $ErrorDesc = ""

				

				for ($itmFO=0; $itmFO -lt $FailoverCount; $itmFO++)

				{

					if($FailoverCount -eq 1)

					{

						$FailOvObj = $DHCPFailoverWatchers

					}

					else

					{

						$FailOvObj = $DHCPFailoverWatchers.Item($itmFO)

					}



					switch($FailOvObj.State)

					{

						"CommunicationInterrupted" {$CurrState = "0"}

						"PartnerDown"              {$CurrState = "0"}

						"Normal"                   {$CurrState = "1"}

					}



				    $PerformancePropertyBag = $momAPI.CreatePropertyBag()

					$PerformancePropertyBag.AddValue("Name",$FailOvObj.Name)

					$PerformancePropertyBag.AddValue("LocalServer",$PrincipalName)

					$PerformancePropertyBag.AddValue("PartnerServer",$FailOvObj.PartnerServer)

					

					if ($FailOvObj.ScopeId -ne $null)

					{

						if ($FailOvObj.ScopeId -is [System.Array])

						{

							$addressList = $FailOvObj.ScopeId -join ', '	

						}

						else

						{	

							$addressList = $FailOvObj.ScopeId.ToString()	

						}

					}

					$PerformancePropertyBag.AddValue("ScopeId",$addressList)

					

					$PerformancePropertyBag.AddValue("State",$FailOvObj.State)

					$PerformancePropertyBag.AddValue("StateID",$CurrState)

					$PerformancePropertyBag.AddValue("ErrorNumber", $ErrorNumber)

					$PerformancePropertyBag.AddValue("ErrorDescription", $ErrorDesc)



					$PerformancePropertyBag

  		            

					Write-Host "$SCRIPT_NAME - DHCP IPV4 Failover State Added to Property Bag"

				}



	      }

       }

	}	

}

catch [System.Exception]

{

    $Description = $_.ToString()

    $ErrNumber   = $_.Exception.ErrorCode



    Write-Warning "$SCRIPT_NAME - $Description"

   	$State = 0



    $PerformancePropertyBag = $momAPI.CreatePropertyBag()

	$PerformancePropertyBag.AddValue("Name","Any")

	$PerformancePropertyBag.AddValue("LocalServer",$PrincipalName)

	$PerformancePropertyBag.AddValue("PartnerServer","Any")

	$PerformancePropertyBag.AddValue("ScopeId","Any")

    $PerformancePropertyBag.AddValue("State","Error")

	$PerformancePropertyBag.AddValue("StateID",$State)

	$PerformancePropertyBag.AddValue("ErrorNumber", $ErrNumber)

	$PerformancePropertyBag.AddValue("ErrorDescription", $Description)



	$PerformancePropertyBag



}

finally

{

    Write-Host "$SCRIPT_NAME - multiple performance property bag returned"

}</Script></ScriptBody>

          <Parameters>

            <Parameter>

              <Name>PrincipalName</Name>

              <Value>$Config/ComputerName$</Value>

            </Parameter>

          </Parameters>

          <TimeoutSeconds>$Config/TimeoutSeconds$</TimeoutSeconds>

        </ProbeAction>

      </MemberModules>

      <Composition>

        <Node ID="Probe">

          <Node ID="Schedule"/>

        </Node>

      </Composition>

    </Composite>

  </ModuleImplementation>

  <OutputType>System!System.PropertyBagData</OutputType>

</DataSourceModuleType>