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A pool does not have an active backup service instance

Microsoft.LS.2019.Monitoring.UnitMonitor.TimerResetEvent.HealthAgent.HA_ERROR_NO_ACTIVE_INSTANCE_BACKUP_SERVICE_PROBE_FAILED (UnitMonitor)

Knowledge Base article:

Summary

There is not an active backup service instance which will prevent changes from being replicated to the paired pool

Causes

Check to ensure there is not an issue with the file store for the servers in the pool.

Resolutions

Fix the health of the file store so the servers in the pool can choose an active instance.

Element properties:

TargetMicrosoft.LS.2019.Component.HealthAgent
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityHigh
Alert Auto ResolveTrue
Monitor TypeMicrosoft.LS.2019.MonitorType.TimerResetEvent.Repeated
RemotableTrue
AccessibilityPublic
Alert Message
[Skype] There is not an active backup service instance which will prevent changes from being replicated to the paired pool
{0}

Please see the 'Product Knowledge' and the 'Alert Context' tab on Alert Properties view for more information.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.LS.2019.Monitoring.UnitMonitor.TimerResetEvent.HealthAgent.HA_ERROR_NO_ACTIVE_INSTANCE_BACKUP_SERVICE_PROBE_FAILED" Accessibility="Public" Enabled="true" Target="SFBDiscovery!Microsoft.LS.2019.Component.HealthAgent" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Microsoft.LS.2019.MonitorType.TimerResetEvent.Repeated" ConfirmDelivery="true">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Alert_There_is_not_an_active_backup_service_instance_which_will_prevent_changes_from_being_replicated_to_the_paired_pool">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>High</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/Context/DataItem/EventDescription$</AlertParameter1>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Microsoft.LS.2019.Monitoring.UnitMonitor.TimerResetEvent.HealthAgent.HA_ERROR_NO_ACTIVE_INSTANCE_BACKUP_SERVICE_PROBE_FAILED.Timer" MonitorTypeStateID="TimerEventRaised" HealthState="Success"/>

    <OperationalState ID="Microsoft.LS.2019.Monitoring.UnitMonitor.TimerResetEvent.HealthAgent.HA_ERROR_NO_ACTIVE_INSTANCE_BACKUP_SERVICE_PROBE_FAILED.Repeated" MonitorTypeStateID="RepeatedEventRaised" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

    <ComputerName>$Target/Host/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <LogName>Lync Server</LogName>

    <ErrorExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">56036</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">PublisherName</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">LS Health Agent</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </ErrorExpression>

    <AutoResolveInterval>86400</AutoResolveInterval>

    <TimerWindowInSeconds>3600</TimerWindowInSeconds>

    <RepeatCount>4</RepeatCount>

  </Configuration>

</UnitMonitor>