Replica Delta Percent Monitor Type

Microsoft.Windows.HyperV.ReplicaDeltaPercentMonitorType (UnitMonitorType)

Replica Delta Percent monitor type.

Element properties:

Member Modules:

Overrideable Parameters:

Source Code:

<UnitMonitorType ID="Microsoft.Windows.HyperV.ReplicaDeltaPercentMonitorType" Accessibility="Public">

  <MonitorTypeStates>

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

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

  </MonitorTypeStates>

  <Configuration>

    <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="ErrorLevelPercentage" type="xsd:integer"/>

  </Configuration>

  <OverrideableParameters>

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

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

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

      <DataSource ID="DS" TypeID="SystemPerf!System.Performance.DeltaDataProvider">

        <CounterName>Replication Count</CounterName>

        <ObjectName>Hyper-V Replica VM</ObjectName>

        <InstanceName>$Target/Property[Type="HVLib!Microsoft.Windows.HyperV.VirtualMachine"]/VirtualMachineName$</InstanceName>

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

        <NumSamples>1</NumSamples>

      </DataSource>

      <ConditionDetection ID="Computation" TypeID="System!System.Computation">

        <NumericValue>

          <BranchValueExpression>

            <!-- Scriptish explanation of flow and calculations below

                                       if (Delta_ReplicationCount > 0 && IntervalSeconds > 0) 

                                       {

                                           Const_ReplicationFrequencyInSeconds = 300

                                           Config_IntervalSeconds = $Config/IntervalSeconds$

                                           Delta_ReplicationCount = $Data/Value$



                                           ReplicationsInConfigInterval =  Config_IntervalSeconds / 300

                                           Percent_ReplicationCount = 100 * ( Delta_ReplicationCount / ReplicationsInConfigInterval )

                                           Percent_ReplicationCount = 100 * ( 300 * Delta_ReplicationCount / Config_IntervalSeconds )

                                           Percent_MissedReplicationCount = 100 - (30000 *  Delta_ReplicationCount / Config_IntervalSeconds )

                                       }

                                       else 

                                       {

                                          return 0 

                                       }

                                    -->

            <Expression>

              <And>

                <Expression>

                  <SimpleExpression>

                    <ValueExpression>

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

                    </ValueExpression>

                    <Operator>GreaterEqual</Operator>

                    <ValueExpression>

                      <Value Type="Double">0.0</Value>

                    </ValueExpression>

                  </SimpleExpression>

                </Expression>

                <Expression>

                  <SimpleExpression>

                    <ValueExpression>

                      <NumericValue>

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

                      </NumericValue>

                    </ValueExpression>

                    <Operator>Greater</Operator>

                    <ValueExpression>

                      <Value Type="Double">0.0</Value>

                    </ValueExpression>

                  </SimpleExpression>

                </Expression>

              </And>

            </Expression>

            <TrueValueExpression>

              <!--Calculate the Percentage of Missed Replication Count -->

              <NumericValue>

                <Subtraction>

                  <NumericValue>

                    <Value>100</Value>

                  </NumericValue>

                  <NumericValue>

                    <Product>

                      <NumericValue>

                        <Division>

                          <NumericValue>

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

                          </NumericValue>

                          <NumericValue>

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

                          </NumericValue>

                        </Division>

                      </NumericValue>

                      <NumericValue>

                        <Value>30000</Value>

                      </NumericValue>

                    </Product>

                  </NumericValue>

                </Subtraction>

              </NumericValue>

            </TrueValueExpression>

            <FalseValueExpression>

              <NumericValue>

                <Value>0</Value>

              </NumericValue>

            </FalseValueExpression>

          </BranchValueExpression>

        </NumericValue>

      </ConditionDetection>

      <ConditionDetection ID="PerfMapper" TypeID="SystemPerf!System.Performance.DataGenericMapper">

        <ObjectName>Hyper-V Replica VM</ObjectName>

        <CounterName>Replication Count Percent</CounterName>

        <InstanceName>$Target/Property[Type="HVLib!Microsoft.Windows.HyperV.VirtualMachine"]/VirtualMachineName$</InstanceName>

        <Value>$Data/Value$</Value>

      </ConditionDetection>

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

        <Expression>

          <SimpleExpression>

            <ValueExpression>

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

            </ValueExpression>

            <Operator>Less</Operator>

            <ValueExpression>

              <Value Type="Double">$Config/ErrorLevelPercentage$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

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

        <Expression>

          <SimpleExpression>

            <ValueExpression>

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

            </ValueExpression>

            <Operator>GreaterEqual</Operator>

            <ValueExpression>

              <Value Type="Double">$Config/ErrorLevelPercentage$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="ReplicationCountPercentHealthy">

        <Node ID="CDOnhealthy">

          <Node ID="PerfMapper">

            <Node ID="Computation">

              <Node ID="DS"/>

            </Node>

          </Node>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="ReplicationCountPercentCritical">

        <Node ID="CDOnCritical">

          <Node ID="PerfMapper">

            <Node ID="Computation">

              <Node ID="DS"/>

            </Node>

          </Node>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>