KHI: The database copy isn't replaying log files fast enough for the last two hours to keep up or catch up with the changes being made to the active database copy.

_8CB6F826_0099_486d_9D0B_CF4EEF4BEB67_ (UnitMonitor)

Knowledge Base article:

Element properties:

Source Code:

<UnitMonitor ID="_8CB6F826_0099_486d_9D0B_CF4EEF4BEB67_" Target="Microsoft.Exchange.2010.Mailbox.DatabaseCopyReplay" Enabled="onEssentialMonitoring" Accessibility="Public" ParentMonitorID="SystemHealth!System.Health.AvailabilityState" TypeID="Correlation.Performance.ConsecutiveSamplesThreshold" Comment="Actionable='False';Urgent='True';EscalationTeam='High Availability'">

  <Category>PerformanceHealth</Category>

  <OperationalStates>

    <OperationalState ID="HMPerfMonitorUnderOpState_6EB1E154_412C_4066_9638_C3C8DF9DE431" MonitorTypeStateID="UnderThreshold" HealthState="Success"/>

    <OperationalState ID="HMPerfMonitorOverOpState_DC569681_955C_44A0_9715_466E2F175F95" MonitorTypeStateID="OverThreshold" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

    <MonitorType>KHI</MonitorType>

    <VoteWeight>100</VoteWeight>

    <ComputerName>.</ComputerName>

    <CounterName>Log Replay is Not Keeping Up</CounterName>

    <ObjectName>MSExchange Replication</ObjectName>

    <InstanceName>$Target/Property[Type='Microsoft.Exchange.2010.Component']/InstanceName$</InstanceName>

    <AllInstances>false</AllInstances>

    <Frequency>1200</Frequency>

    <Threshold>0.9</Threshold>

    <Direction>greater</Direction>

    <NumSamples>6</NumSamples>

  </Configuration>

</UnitMonitor>