KHI: The Exchange store has consumed 90\% of available RPC threads.

_db4ee2d6_db22_496a_9146_c7a9444efcb1_ (UnitMonitor)

Knowledge Base article:

External Knowledge Sources

For more information, see the respective topic at the Microsoft Exchange Server TechCenter

Element properties:

TargetMicrosoft.Exchange.2010.Mailbox.InformationStorePerformance
Parent MonitorSystem.Health.AvailabilityState
CategoryPerformanceHealth
EnabledTrue
Alert GenerateFalse
Alert Auto ResolveTrue
Monitor TypeCorrelation.Performance.ConsecutiveSamplesThreshold
RemotableTrue
AccessibilityPublic
RunAsDefault
CommentActionable='False';Urgent='True';EscalationTeam='Store'

Source Code:

<UnitMonitor ID="_db4ee2d6_db22_496a_9146_c7a9444efcb1_" Target="Microsoft.Exchange.2010.Mailbox.InformationStorePerformance" Enabled="onEssentialMonitoring" Accessibility="Public" ParentMonitorID="SystemHealth!System.Health.AvailabilityState" TypeID="Correlation.Performance.ConsecutiveSamplesThreshold" Comment="Actionable='False';Urgent='True';EscalationTeam='Store'">
<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>% RPC Threads</CounterName>
<ObjectName>MSExchangeIS</ObjectName>
<InstanceName/>
<AllInstances>false</AllInstances>
<Frequency>60</Frequency>
<Threshold>90</Threshold>
<Direction>greater</Direction>
<NumSamples>10</NumSamples>
</Configuration>
</UnitMonitor>