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System Center 2016 Virtual Machine Manager Host Cluster Commit State

Microsoft.SystemCenter.VirtualMachineManager.2016.HostClusterCommitStateMonitor (UnitMonitor)

Monitors whether the host cluster is overcommitted

Knowledge Base article:

Summary

The cluster overcommit monitor indicates whether or not the host cluster is currently in an overcommitted state.

Causes

Based on the user defined cluster reserve, if a host cluster cannot withstand the specified number of node failures and still keep all of the virtual machines running, then the cluster is placed in an overcommitted state and the state of this monitor is unhealthy.

Resolutions

To return a Host Cluster to a non-overcommitted state, you may:

Reconfigure existing virtual machines

Modify the cluster reserve

Add additional hardware to the cluster

Element properties:

TargetMicrosoft.SystemCenter.VirtualMachineManager.HostCluster
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.SystemCenter.VirtualMachineManager.2016.TwoStatesMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
Host Cluster over committed
The host cluster is over committed
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.SystemCenter.VirtualMachineManager.2016.HostClusterCommitStateMonitor" Accessibility="Public" Target="VMMBase!Microsoft.SystemCenter.VirtualMachineManager.HostCluster" TypeID="Microsoft.SystemCenter.VirtualMachineManager.2016.TwoStatesMonitorType" ParentMonitorID="SystemHealth!System.Health.AvailabilityState">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Microsoft.SystemCenter.VirtualMachineManager.2016.HostClusterCommitStateMonitor.AlertMessage">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters/>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="HostClusterCommitStateHealthy" MonitorTypeStateID="Success" HealthState="Success"/>

    <OperationalState ID="HostClusterCommitStateCritical" MonitorTypeStateID="Error" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

    <IntervalSeconds>7200</IntervalSeconds>

    <TimeoutSeconds>300</TimeoutSeconds>

    <ErrorExpression>

      <SimpleExpression>

        <ValueExpression>

          <Value Type="String">Over</Value>

        </ValueExpression>

        <Operator CaseSensitive="false">Equal</Operator>

        <ValueExpression>

          <Value Type="String">$Target/Property[Type="VMMBase!Microsoft.SystemCenter.VirtualMachineManager.HostCluster"]/CommitState$</Value>

        </ValueExpression>

      </SimpleExpression>

    </ErrorExpression>

    <SuccessExpression>

      <SimpleExpression>

        <ValueExpression>

          <Value Type="String">Over</Value>

        </ValueExpression>

        <Operator CaseSensitive="false">NotEqual</Operator>

        <ValueExpression>

          <Value Type="String">$Target/Property[Type="VMMBase!Microsoft.SystemCenter.VirtualMachineManager.HostCluster"]/CommitState$</Value>

        </ValueExpression>

      </SimpleExpression>

    </SuccessExpression>

  </Configuration>

</UnitMonitor>