QND.Hyperv2012R2.VM.Cluster.Resource.WMI.PT (ProbeActionModuleType)

Element properties:

Member Modules:

Overrideable Parameters:

Source Code:

<ProbeActionModuleType ID="QND.Hyperv2012R2.VM.Cluster.Resource.WMI.PT" Accessibility="Internal" Batching="false" PassThrough="false">

  <Configuration>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" minOccurs="1" name="TimeoutSeconds" type="xsd:integer"/>

  </Configuration>

  <OverrideableParameters>

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

  </OverrideableParameters>

  <ModuleImplementation Isolation="Any">

    <Composite>

      <MemberModules>

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

          <ScriptName>VMPreferredHostWMIProbe.ps1</ScriptName>

          <ScriptBody><Script>#===========================================================================================

# AUTHOR:         	Tao Yang

# Script Name:    	VMPreferredHostWMIProbe.ps1

# DATE:           	03/07/2012

# Version:        	1.5

# COMMENT:			- Script to check if Hyper-V guest VM is located on the preferred host

#===========================================================================================

#get host name

$HostName = $env:COMPUTERNAME



#This Script

$ScriptName = "VMPreferredHostWMIProbe.ps1"

#MOM API

$oAPI = New-Object -ComObject "MOM.ScriptAPI"



#Debugging Log

$OAPI.LogScriptEvent($ScriptName,11000,0,"Hyper-V Cluster VM Preferred Host Probe script is being executed on $HostName`...")



#PS array for virtual machines that are located on the wrong host

$arrVMsOnWrongHost = @()

$arrVMsOnPreferredHost = @()

$arrPreferredHostsNotConfigured = @()

#$arrIncorrectPreferredOwner = @()



#Get virtual machines cluster resources that are currently hosted on the local cluster node (this computer)

$arrVirtualMachines = Get-WmiObject -Namespace root\MSCluster -Query "Select * from MSCluster_Resource Where Type = 'Virtual Machine'"

$bAllVMsOnPreferredHost = $true

$bAllVMsPreferredHostConfigured = $true



foreach ($VirtualMachine in $arrVirtualMachines)

{

    $VMResourceGroup = Get-WmiObject -Namespace root\MSCluster -Query "Associators of {MSCluster_Resource.Name='$($VirtualMachine.Name)'} WHERE AssocClass = MSCluster_ResourceGroupToResource"

	$VirtualMachineName = $VMResourceGroup.Name

	$CurrentResourceOwner = Get-WmiObject -Namespace root\MSCluster -Query "Associators of {MSCluster_ResourceGroup.Name='$($VMResourceGroup.Name)'} WHERE AssocClass = MSCluster_NodeToActiveGroup"

	$arrPreferredOwners = Get-WmiObject -Namespace root\MSCluster -Query "Associators of {MSCluster_ResourceGroup.Name='$($VMResourceGroup.Name)'} WHERE AssocClass = MSCluster_ResourceGroupToPreferredNode"

	#Determine if the current resource owner is one of the preferred owners

	if ($arrPreferredOwners)

	{

		$IsOnPreferredHost = $false

		Foreach ($PreferredOwner in $arrPreferredOwners)

		{

			if ($PreferredOwner.Name -ieq $CurrentResourceOwner.Name)

			{

				$IsOnPreferredHost = $true

				#add the VM to $arrVMsOnPreferredHost

				$arrVMsOnPreferredHost += $VirtualMachineName

				$bAllVMsPreferredHostConfigured = $false

			}

		}

	} else {

		#Preferred host not configured for this VM. consider as is on preferred host

		$IsOnPreferredHost = $true

		#Add the VM to $arrPreferredHostsNotConfigured

		$arrPreferredHostsNotConfigured += $VirtualMachineName

	}

	

	#If the VM is not on the preferred owner, add to the $arrVMsOnWrongHost array and change $bAllVMsOnPreferredOwner to False

	If (!$IsOnPreferredHost)

	{

		$bAllVMsOnPreferredHost = $false

		$arrVMsOnWrongHost += $VirtualMachineName

	}

}



#Convert VM On Wrong Host array to string - separated by ";"

$strVMsOnWrongHost = [system.String]::Join(";", $arrVMsOnWrongHost)



#Convert VM On Preferred Host array to string - separated by ";"

$strVMsOnPreferredHost = [system.String]::Join(";", $arrVMsOnPreferredHost)



#Convert Preferred Host Not Set array to string - separated by ";"

$strPreferredHostsNotConfigured = [system.String]::Join(";", $arrPreferredHostsNotConfigured)



#MOM API PropertyBag

$oBag = $oAPI.CreatePropertyBag()

$oBag.AddValue('VMsOnWrongHost', $strVMsOnWrongHost)

$oBag.AddValue('VMsOnPreferredHost', $strVMsOnPreferredHost)

$oBag.AddValue('PreferredHostsNotConfigured', $strPreferredHostsNotConfigured)

$oBag.AddValue('AllVMsOnPreferredHost', $bAllVMsOnPreferredHost)

$oBag.AddValue('AllVMsPreferredHostConfigured', $bAllVMsPreferredHostConfigured)



#Debugging Log

if ($bAllVMsOnPreferredHost)

{

	$OAPI.LogScriptEvent($ScriptName,11001,0,"All virtual machines are on preferred hosts: $strVMsOnPreferredHost")

} else {

	$OAPI.LogScriptEvent($ScriptName,11003,2,"At least 1 virtual machine is not on preferred hosts")

}



if ($strVMsOnPreferredHost.length -gt 0)

{

	$OAPI.LogScriptEvent($ScriptName,11002,0,"The following virtual machines are on the preferred host: $strVMsOnPreferredHost")

}



if ($strVMsOnWrongHost.length -gt 0)

{

	$OAPI.LogScriptEvent($ScriptName,11004,2,"The following virtual machines are NOT on the preferred host: $strVMsOnWrongHost")

}



#return property bag

$oBag

#$oAPI.Return($oBag)

</Script></ScriptBody>

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

        </ProbeAction>

      </MemberModules>

      <Composition>

        <Node ID="Probe"/>

      </Composition>

    </Composite>

  </ModuleImplementation>

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

  <TriggerOnly>true</TriggerOnly>

</ProbeActionModuleType>