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System Center 2019+ Virtual Machine Manager Host Memory Utilization

Microsoft.SystemCenter.VirtualMachineManager.HostMemoryUtilizationMonitor (UnitMonitor)

監視主機記憶體使用率

Knowledge Base article:

摘要

此監視會追蹤主機目前使用的記憶體容量。主機的可用記憶體低於閾值。

原因

主機上執行的虛擬機器正在耗用大量的主機記憶體。

解決方式

若要釋出其他主機記憶體，請將虛擬機器移轉至另一部主機。若要讓 Virtual Machine Manager 自動負載平衡主機叢集，請啟用動態最佳化功能。如需動態最佳化的詳細資訊，請參閱 Virtual Machine Manager 說明文件。

Element properties:

TargetMicrosoft.SystemCenter.VirtualMachineManager.Discovery.HyperVHost
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.SystemCenter.VirtualMachineManager.Performance.PowershellBasedConsecutiveSamplesTwoThresholdsMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
主機記憶體使用率過高
主機記憶體使用率為 {1}，已超過 {0} 的警告或重大等級
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.SystemCenter.VirtualMachineManager.HostMemoryUtilizationMonitor" Accessibility="Public" Target="VMMDiscovery!Microsoft.SystemCenter.VirtualMachineManager.Discovery.HyperVHost" ParentMonitorID="SystemHealth!System.Health.AvailabilityState" Remotable="true" TypeID="Microsoft.SystemCenter.VirtualMachineManager.Performance.PowershellBasedConsecutiveSamplesTwoThresholdsMonitorType">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Microsoft.SystemCenter.VirtualMachineManager.HostMemoryUtilizationMonitor.AlertMessage">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Target/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</AlertParameter1>

      <AlertParameter2>$Data/Context/SampleValue$</AlertParameter2>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="MemoryUtilizationReachedWarning" MonitorTypeStateID="ConditionWarn" HealthState="Warning"/>

    <OperationalState ID="MemoryUtilizationReachedError" MonitorTypeStateID="ConditionError" HealthState="Error"/>

    <OperationalState ID="MemoryUtilizationIsSuccess" MonitorTypeStateID="ConditionSuccess" HealthState="Success"/>

  </OperationalStates>

  <Configuration>

    <IntervalSeconds>180</IntervalSeconds>

    <TimeoutSeconds>180</TimeoutSeconds>

    <WarningThreshold>90</WarningThreshold>

    <CriticalThreshold>95</CriticalThreshold>

    <NumSamples>3</NumSamples>

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

    <ScriptBody><Script># Copyright (c) Microsoft Corporation. All rights reserved.

# Powershell source code

# HostMemoryUtilizationCounter.ps1



# This Script is used to check the Host memory utilization

# Alert when the utilization of this partition is high:

# Warning: WarningThreshold%, like 80%

# Critical: CriticalThreshold, like 90%



param($hostComputerName)



$momAPI = new-object -comObject MOM.ScriptAPI

$error.Clear();

$oBag = $momAPI.CreatePropertyBag();



$colItems = gcim Win32_OperatingSystem;



foreach($objItem in $colItems){

	if($objItem.TotalVisibleMemorySize -gt 0){

		$performanceUtilization = (($objItem.TotalVisibleMemorySize - $objItem.FreePhysicalMemory)/$objItem.TotalVisibleMemorySize)*100;

	}

}



if($performanceUtilization -lt 0){

	$performanceUtilization = 0;

}



$performanceUtilization = [int]$performanceUtilization;



$oBag.AddValue("Utilization",$performanceUtilization);

$oBag;</Script></ScriptBody>

    <ObjectName>win32_PerfFormattedData_Perfos_Memory</ObjectName>

    <CounterName>PercentCommittedBytesInUse</CounterName>

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

    <Value>$Data/Property[@Name='Utilization']$</Value>

  </Configuration>

</UnitMonitor>