Sysvol Health Monitor

Microsoft.Windows.Server.2016.AD.Availability.SysVol.Monitortype (UnitMonitorType)

Monitors whether the sysvol is available on a DC

Knowledge Base article:

Additional

The health of the Sysvol shared folder is essential to the Domain Controller. Sysvol is a shared folder on every domain controller that stores a copy of the domain’s public files, including system policies and Group Policy settings, which are replicated to all other domain controllers in the domain. SYSVOL share problems prevent Group Policy and login scripts from working.

Element properties:

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- Unit Monitors (1)

RunAs	Default
Accessibility	Internal
Support Monitor Recalculate	False

Member Modules:

ID	Module Type	TypeId	RunAs
DS	DataSource	Microsoft.Windows.Server.2016.AD.Availability.SysVol.DataSource	Default
FilterNotOK	ConditionDetection	System.ExpressionFilter	Default
FilterOK	ConditionDetection	System.ExpressionFilter	Default

Overrideable Parameters:

ID	ParameterType	Selector	Display Name	Description
IntervalSeconds	int	$Config/IntervalSeconds$	Frequency	How often the monitor is run
TimeoutSeconds	int	$Config/TimeoutSeconds$	Timeout	Time out in Sec

Source Code:

<UnitMonitorType ID="Microsoft.Windows.Server.2016.AD.Availability.SysVol.Monitortype" Accessibility="Internal">

  <MonitorTypeStates>

    <MonitorTypeState ID="SYSVOLShareOK" NoDetection="false"/>

    <MonitorTypeState ID="SYSVOLShareError" NoDetection="false"/>

  </MonitorTypeStates>

  <Configuration>

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

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

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

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

  </Configuration>

  <OverrideableParameters>

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

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

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

      <DataSource ID="DS" TypeID="Microsoft.Windows.Server.2016.AD.Availability.SysVol.DataSource">

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

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

      </DataSource>

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

        <Expression>

          <RegExExpression>

            <ValueExpression>

              <XPathQuery>Property[@Name='Status']</XPathQuery>

            </ValueExpression>

            <Operator>ContainsSubstring</Operator>

            <Pattern>GOOD</Pattern>

          </RegExExpression>

        </Expression>

      </ConditionDetection>

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

        <Expression>

          <RegExExpression>

            <ValueExpression>

              <XPathQuery>Property[@Name='Status']</XPathQuery>

            </ValueExpression>

            <Operator>ContainsSubstring</Operator>

            <Pattern>BAD</Pattern>

          </RegExExpression>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="SYSVOLShareOK">

        <Node ID="FilterOK">

          <Node ID="DS"/>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="SYSVOLShareError">

        <Node ID="FilterNotOK">

          <Node ID="DS"/>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>