To remove a host from your vCenter Server inventory, you have to use the Remove-VMHost cmdlet. The
Remove-VMHost cmdlet has the following syntax:
Remove-VMHost [-VMHost] <VMHost[]> [-Server <VIServer[]>] [-WhatIf] [-Confirm] [<CommonParameters>]
Let's try to remove a host as seen in the following screenshot:
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The operation failed because the host should have been in maintenance mode or a disconnected state before you could remove it.
So let's put the host in maintenance mode first and then try to remove it:
PowerCLI C:\> $VMHost = Get-VMHost –Name 192.168.0.133 PowerCLI C:\> $VMHost | Set-VMHost -State Maintenance Name ConnectionState PowerState NumCpu CpuUsageMhz ---- --------------- ---------- ------ ----------- 192.168.0.133 Maintenance PoweredOn 2 41 PowerCLI C:\> $VMHost | Remove-VMHost -Confirm:$false