Windows Logical Disk Free Space Data Source Module

Microsoft.Windows.Server.10.0.FreeSpace.Moduletype (DataSourceModuleType)

Monitor the Logical Disk Free Space on Windows Servers

Element properties:

Member Modules:

Overrideable Parameters:

Source Code:

<DataSourceModuleType ID="Microsoft.Windows.Server.10.0.FreeSpace.Moduletype" Accessibility="Internal" Batching="false">

  <Configuration>

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

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

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

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

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

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

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

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

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

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

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

  </Configuration>

  <OverrideableParameters>

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

    <OverrideableParameter ID="SystemDriveWarningMBytesThreshold" Selector="$Config/SystemDriveWarningMBytesThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="SystemDriveWarningPercentThreshold" Selector="$Config/SystemDriveWarningPercentThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="SystemDriveErrorMBytesThreshold" Selector="$Config/SystemDriveErrorMBytesThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="SystemDriveErrorPercentThreshold" Selector="$Config/SystemDriveErrorPercentThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="NonSystemDriveWarningMBytesThreshold" Selector="$Config/NonSystemDriveWarningMBytesThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="NonSystemDriveWarningPercentThreshold" Selector="$Config/NonSystemDriveWarningPercentThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="NonSystemDriveErrorMBytesThreshold" Selector="$Config/NonSystemDriveErrorMBytesThreshold$" ParameterType="double"/>

    <OverrideableParameter ID="NonSystemDriveErrorPercentThreshold" Selector="$Config/NonSystemDriveErrorPercentThreshold$" ParameterType="double"/>

  </OverrideableParameters>

  <ModuleImplementation Isolation="Any">

    <Composite>

      <MemberModules>

        <DataSource ID="Scheduler" TypeID="System!System.Scheduler">

          <Scheduler>

            <SimpleReccuringSchedule>

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

              <SyncTime/>

            </SimpleReccuringSchedule>

            <ExcludeDates/>

          </Scheduler>

        </DataSource>

        <ProbeAction ID="PA" TypeID="Microsoft.Windows.Server.10.0.PowerShellPropertyBagProbe">

          <ScriptName>Microsoft.Windows.Server.FreeSpace.ps1</ScriptName>

          <PSparam>param ($TargetComputer, $DebugFlag, $SysWarningMB, $SysWarningPct, $SysErrorMB, $SysErrorPct, $NonSysWarningMB, $NonSysWarningPct, $NonSysErrorMB, $NonSysErrorPct)</PSparam>

          <ScriptBody><Script>

#Copyright (c) Microsoft Corporation. All rights reserved.

#

# Parameters that should be passed to this script

# 0 Computer (FQDN)

# 1 Debug Flag          - If True then script can output some trace information to event log.

# 2 System Drive Warning MBytes Threshold

# 3 System Drive Warning Percent Threshold

# 4 System Drive Error MBytes Threshold

# 5 System Drive Error Percent Threshold

# 6 Non System Drive Warning MBytes Threshold

# 7 Non System Drive Warning Percent Threshold

# 8 Non System Drive Error MBytes Threshold

# 9 Non System Drive Error Percent Threshold



$BYTES_IN_MB = 1048576 #=2^20



$DriveHealthyState            = 0

$DriveWarningState            = 1

$DriveErrorState              = 2



Function Main()

{

    $g_DebugFlag      = Convert-ToBoolean -sBool $DebugFlag

	$bBagIsNotEmpty = $false

	$IsNotEmpty     = $false



 	$IsNano = Is_NanoServer 

    $IsVolumeInfoSupported = Is_Win32_Volume_Supported $TargetComputer 

    $SystemDrive = Get_System_Drive $TargetComputer

  



   $oVolumes =  Get-Volumes -IsNano $IsNano -IsVolumeSupported $IsVolumeInfoSupported -TargetComputer $TargetComputer  

    

    foreach ($oVolume in $oVolumes)

    {

 		$VolumeId = Get-VolumeId -IsNano $IsNano -IsVolumeSupported $IsVolumeInfoSupported -Volume $oVolume

		if ($true -eq $IsNano)

		{

			$nFreeSpace = $oVolume.SizeRemaining

			$nMaxSize   = $oVolume.Size

		}

		else

		   {

				$nFreeSpace = $oVolume.FreeSpace

			   if ($IsVolumeInfoSupported)

			   {

				   $nMaxSize = $oVolume.Capacity

			   }

				else

					{

						$nMaxSize   = $oVolume.Size

					}

           }



 		    Create-PerfData -VolumeId $VolumeId -nMaxSize $nMaxSize -nFreeSpace $nFreeSpace -SystemDrive $SystemDrive -momAPI $momAPI  -bBagIsNotEmpty ([ref]$IsNotEmpty)

            if ($false -eq $bBagIsNotEmpty)

		    {

				if ($true -eq $IsNotEmpty)

				{

					$bBagIsNotEmpty = $true

				}

			}   

    }

    

    if ($false -eq $bBagIsNotEmpty)

    {

        $oBag = $momAPI.CreatePropertyBag()

        $oBag.AddValue("IsNotEmpty", "false")

        $oBag

    }



	Unload-Module -ModuleName "Storage"

	Unload-Module -ModuleName "CimCmdLets"



}



Function GetDriveHealthState

{

    param ($bIsSystem, $dSysWarnMB, $dSysWarnPct, $dSysErrorMB, $dSysErrorPct, $dNonSysWarnMB, $dNonSysWarnPct, $dNonSysErrorMB, $dNonSysErrorPct, $dPctFree, $dMBFree)



    $fResult = $DriveHealthyState



    If ($bIsSystem)

    {

        If (($dMBFree -le $dSysErrorMB) -and ($dPctFree -le $dSysErrorPct))

        {

            $fResult = $DriveErrorState

        }

        ElseIf (($dMBFree -le $dSysWarnMB) -and ($dPctFree -le $dSysWarnPct))

        {

            $fResult = $DriveWarningState

        }

    }

    Else

    {

        If (($dMBFree -le $dNonSysErrorMB) -and ($dPctFree -le $dNonSysErrorPct))

        {

            $fResult = $DriveErrorState

        }

        ElseIf (($dMBFree -le $dNonSysWarnMB) -and ($dPctFree -le $dNonSysWarnPct))

        {

            $fResult = $DriveWarningState

        }

    }



    return $fResult

}



Function Create-PerfData([string]$VolumeId,$nMaxSize,$nFreeSpace,[string]$SystemDrive,$momAPI, [ref]$bBagIsNotEmpty)

{

	$ErrorActionPreference="SilentlyContinue"

	$error.Clear()



	if ($null -eq $momAPI)

	{

		return

	}



	if ($nMaxSize -eq $null -or $nMaxSize -eq 0)

    {

		return

	}



    if ($nFreeSpace -eq $null) 

	{

		 $nFreeSpace = 0 

	}



    $nPctFree = [math]::Round($nFreeSpace / $nMaxSize * 100, 2)

    $nMBFree = [math]::Round($nFreeSpace / $BYTES_IN_MB, 0)

    

	if ($VolumeId -ieq $SystemDrive)

    {

        $bIsSystemDrive = $true

    }

    else

    {

        $bIsSystemDrive = $false

    }



	$State = GetDriveHealthState $bIsSystemDrive $SysWarningMB $SysWarningPct $SysErrorMB $SysErrorPct $NonSysWarningMB $NonSysWarningPct $NonSysErrorMB $NonSysErrorPct $nPctFree $nMBFree

	

	$oBag = $momAPI.CreatePropertyBag()

    $oBag.AddValue("IsNotEmpty", "true")

    $oBag.AddValue("PerfInstance", $VolumeId)

	$oBag.AddValue("DiskState",$State)



	if ($error.Count -eq 0)

	{

		$oBag

		$bBagIsNotEmpty.Value = $true

	}



} 









Main

</Script></ScriptBody>

          <Parameters>

            <Parameter>

              <Name>TargetComputer</Name>

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

            </Parameter>

            <Parameter>

              <Name>DebugFlag</Name>

              <Value>false</Value>

            </Parameter>

            <Parameter>

              <Name>SysWarningMB</Name>

              <Value>$Config/SystemDriveWarningMBytesThreshold$</Value>

            </Parameter>

            <Parameter>

              <Name>SysWarningPct</Name>

              <Value>$Config/SystemDriveWarningPercentThreshold$</Value>

            </Parameter>

            <Parameter>

              <Name>SysErrorMB</Name>

              <Value>$Config/SystemDriveErrorMBytesThreshold$</Value>

            </Parameter>

            <Parameter>

              <Name>SysErrorPct</Name>

              <Value>$Config/SystemDriveErrorPercentThreshold$</Value>

            </Parameter>

            <Parameter>

              <Name>NonSysWarningMB</Name>

              <Value>$Config/NonSystemDriveWarningMBytesThreshold$</Value>

            </Parameter>

            <Parameter>

              <Name>NonSysWarningPct</Name>

              <Value>$Config/NonSystemDriveWarningPercentThreshold$</Value>

            </Parameter>

            <Parameter>

              <Name>NonSysErrorMB</Name>

              <Value>$Config/NonSystemDriveErrorMBytesThreshold$</Value>

            </Parameter>

            <Parameter>

              <Name>NonSysErrorPct</Name>

              <Value>$Config/NonSystemDriveErrorPercentThreshold$</Value>

            </Parameter>

          </Parameters>

          <TimeoutSeconds>300</TimeoutSeconds>

        </ProbeAction>

        <ConditionDetection ID="EmptyCD" TypeID="System!System.ExpressionFilter">

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery Type="Boolean">Property[@Name='IsNotEmpty']</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value Type="Boolean">true</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </ConditionDetection>

        <ConditionDetection ID="InstanceFilter" TypeID="System!System.ExpressionFilter">

          <Expression>

            <SimpleExpression>

              <ValueExpression>

                <XPathQuery Type="String">Property[@Name='DiskLabel']</XPathQuery>

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value Type="String">$Config/DiskLabel$</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </ConditionDetection>

      </MemberModules>

      <Composition>

        <Node ID="InstanceFilter">

          <Node ID="EmptyCD">

            <Node ID="PA">

              <Node ID="Scheduler"/>

            </Node>

          </Node>

        </Node>

      </Composition>

    </Composite>

  </ModuleImplementation>

  <OutputType>System!System.BaseData</OutputType>

</DataSourceModuleType>