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MSSQL on Windows: DB Percentage Change

Microsoft.SQLServer.Windows.MonitorType.Database.DBPercentageChange (UnitMonitorType)

This monitor type checks for a change in database free space between subsequent polling intervals.

Element properties:

RunAsMicrosoft.SQLServer.Core.RunAs.Monitoring
AccessibilityInternal
Support Monitor RecalculateFalse

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.SQLServer.Windows.DataSource.DBSizeRawPerfProvider Default
CDDeltaThreshold ConditionDetection System.Performance.DeltaValueCondition Default
CDOverThreshold1UnderThreshold2 ConditionDetection System.ExpressionFilter Default
CDOverThreshold2 ConditionDetection System.ExpressionFilter Default
CDUnderThreshold1 ConditionDetection System.ExpressionFilter Default

Overrideable Parameters:

IDParameterTypeSelectorDisplay NameDescription
IntervalSecondsint$Config/IntervalSeconds$Interval (seconds)The recurring interval of time in seconds in which to run the workflow.
SyncTimestring$Config/SyncTime$Synchronization TimeThe synchronization time specified by using a 24-hour format. May be omitted.
NumSamplesint$Config/NumSamples$Number of samplesThe number of times a measured value should breach the threshold before the state is changed.
Threshold1double$Config/Threshold1$Warning ThresholdExceeding this threshold will result in the monitor changing to at least a Warning state.
Threshold2double$Config/Threshold2$Critical ThresholdThe monitor will change its state to Critical if the value exceeds this threshold. Being between this threshold and the warning threshold (inclusive) will result in the monitor being in a warning state.
TimeoutSecondsint$Config/TimeoutSeconds$Timeout (seconds)Specifies the time the workflow is allowed to run before being closed and marked as failed.
AzureMaxFileSizeMBint$Config/AzureMaxFileSizeMB$Azure Maximum File Size (MB)The maximum size of data file stored in Azure BLOB Storage. The workflow will consider this value as a maximum storage capacity for each file.
SqlExecTimeoutSecondsint$Config/SqlExecTimeoutSeconds$Timeout for query execution (seconds)The workflow will fail and register an event, if the query execution takes longer than the specified period.
SqlTimeoutSecondsint$Config/SqlTimeoutSeconds$Timeout for database connection (seconds)The workflow will fail and register an event, if it cannot access the database during the specified period.

Source Code:

<UnitMonitorType ID="Microsoft.SQLServer.Windows.MonitorType.Database.DBPercentageChange" Accessibility="Internal" RunAs="SqlCoreLib!Microsoft.SQLServer.Core.RunAs.Monitoring">

  <MonitorTypeStates>

    <MonitorTypeState ID="UnderThreshold1"/>

    <MonitorTypeState ID="OverThreshold1UnderThreshold2"/>

    <MonitorTypeState ID="OverThreshold2"/>

  </MonitorTypeStates>

  <Configuration>

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

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

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

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

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

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

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

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

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

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="Threshold1" type="xsd:double"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="Threshold2" type="xsd:double"/>

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

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

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

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

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

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

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

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

    <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"/>

  </Configuration>

  <OverrideableParameters>

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

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

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

    <OverrideableParameter ID="Threshold1" ParameterType="double" Selector="$Config/Threshold1$"/>

    <OverrideableParameter ID="Threshold2" ParameterType="double" Selector="$Config/Threshold2$"/>

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

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

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

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

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

      <DataSource TypeID="Microsoft.SQLServer.Windows.DataSource.DBSizeRawPerfProvider" ID="DS">

        <MachineName>$Config/MachineName$</MachineName>

        <NetbiosComputerName>$Config/NetbiosComputerName$</NetbiosComputerName>

        <InstanceName>$Config/InstanceName$</InstanceName>

        <DatabaseName>$Config/DatabaseName$</DatabaseName>

        <AzureMaxFileSizeMB>$Config/AzureMaxFileSizeMB$</AzureMaxFileSizeMB>

        <ObjectName>$Config/ObjectName$</ObjectName>

        <CounterName>$Config/CounterName$</CounterName>

        <PerfInstanceName>$Config/PerfInstanceName$</PerfInstanceName>

        <ValuePropertyName>$Config/ValuePropertyName$</ValuePropertyName>

        <ConnectionString>$Config/ConnectionString$</ConnectionString>

        <InstanceVersion>$Config/InstanceVersion$</InstanceVersion>

        <InstanceEdition>$Config/InstanceEdition$</InstanceEdition>

        <MonitoringType>$Config/MonitoringType$</MonitoringType>

        <SqlExecTimeoutSeconds>$Config/SqlExecTimeoutSeconds$</SqlExecTimeoutSeconds>

        <SqlTimeoutSeconds>$Config/SqlTimeoutSeconds$</SqlTimeoutSeconds>

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

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

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

      </DataSource>

      <ConditionDetection TypeID="SystemPerf!System.Performance.DeltaValueCondition" ID="CDDeltaThreshold">

        <NumSamples>$Config/NumSamples$</NumSamples>

        <Absolute>true</Absolute>

      </ConditionDetection>

      <ConditionDetection ID="CDUnderThreshold1" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="Double">Value</XPathQuery>

            </ValueExpression>

            <Operator>Greater</Operator>

            <ValueExpression>

              <Value Type="Double">-$Config/Threshold1$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

      <ConditionDetection ID="CDOverThreshold1UnderThreshold2" TypeID="System!System.ExpressionFilter">

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Double">Value</XPathQuery>

                </ValueExpression>

                <Operator>LessEqual</Operator>

                <ValueExpression>

                  <Value Type="Double">-$Config/Threshold1$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="Double">Value</XPathQuery>

                </ValueExpression>

                <Operator>GreaterEqual</Operator>

                <ValueExpression>

                  <Value Type="Double">-$Config/Threshold2$</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </And>

        </Expression>

      </ConditionDetection>

      <ConditionDetection ID="CDOverThreshold2" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="Double">Value</XPathQuery>

            </ValueExpression>

            <Operator>Less</Operator>

            <ValueExpression>

              <Value Type="Double">-$Config/Threshold2$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="UnderThreshold1">

        <Node ID="CDUnderThreshold1">

          <Node ID="CDDeltaThreshold">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="OverThreshold1UnderThreshold2">

        <Node ID="CDOverThreshold1UnderThreshold2">

          <Node ID="CDDeltaThreshold">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="OverThreshold2">

        <Node ID="CDOverThreshold2">

          <Node ID="CDDeltaThreshold">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>