vSphere PowerCLI Reference



Suspends hosts.


Suspend-VMHost [-VMHost] <VMHost[]> [-TimeoutSeconds <Int32>] [-Evacuate] [-Server <VIServer[]>] [-RunAsync] [-WhatIf] [-Confirm] [<CommonParameters>]

Related Commands

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Detailed Description

Powers down the specified host machines to standby mode. You can use the suspend feature to make resources available on a short-term basis or for other situations in which you want to put a host on hold without powering it down.


NameTypeDescriptionRequired?Pipeline InputDefault Value
VMHostVMHost[]Specify the hosts you want to suspend.truetrue (ByValue)
ConfirmSwitchParameterIf the value is $true, indicates that the cmdlet asks for confirmation before running. If the value is $false, the cmdlet runs without asking for user confirmation.falsefalse$true
EvacuateSwitchParameterIf the value is $true, vCenter automatically reregisters the virtual machines that are compatible for reregistration. If they are not compatible, they remain on the suspended host. If there are powered on virtual machines that cannot be reregistered the operation waits until they are powered off manually. The -Evacuate parameter is valid only when connected to a vCenter Server system and the virtual machine host is part of a DRS-enabled cluster.falsefalse
RunAsyncSwitchParameterIndicate that the command returns immediately without waiting for the task to complete. In this mode, the output of the cmdlet is a Task object. For more information about the -RunAsync parameter run " help About_RunAsync" in the vSphere PowerCLI console.falsefalse
ServerVIServer[]Specify the vSphere servers on which you want to run the cmdlet. If no value is given to this parameter, the command runs on the default servers. For more information about default servers, see the description of Connect-VIServer.falsefalse
TimeoutSecondsInt32Specify a time period in seconds to wait for the host to enter a standby mode. If the host is not suspended for the specified time, the host is declared timed out, and the task is assumed failed. The default value is 300.falsefalse300
WhatIfSwitchParameterIndicate that the cmdlet is run only to display the changes that would be made and actually no objects are modified.falsefalse

Return Type



Works only against VirtualCenter 2.5, vCenter Server 4.0, and later. The h ost should be configured to support standby mode using Wake-on-Lan or the Intelligent Platform Management Interface Protocol (IPMI) protocol (vCenter Server 4.0). The -Evacuate parameter is valid only when the vCenter host is a part of a DRS-enabled cluster.


-------------- Example 1 --------------

Suspend-VMHost -TimeOutSeconds 60 -Confirm

Suspends the specified host after user confirmation. If the host is not suspended within 60 seconds, the task is reported failed.

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