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Currently there isn't a good way to configure VM memory hot-add and cpu hot-add via PowerCLI. These seem like good options for Set-VM.
And if you're just looking to query the info...
$VM.ExtensionData.Config | Select Name,CpuHotAddEnabled,MemoryHotAddEnabled
This does it. But not as intuitive as some might want.$VM = Get-VM MyVM
$spec = New-Object VMware.Vim.VirtualMachineConfigSpec
$spec.memoryHotAddEnabled = $true
$spec.cpuHotAddEnabled = $true
Managing the values or even the ability to enable/disable the setting.
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