Find unused vmnic

[shaka]

How can I find the first vmnic with powerCLI that is not being used by any of the virtual switches on a host?  I am not concerned if it is connected or not.

[LucD · Accepted solution]

Something like this ?

It will list all the pnic and then remove the ones used in vSwitch or dvSwitch.

$nicTab = @{}
$esx = Get-VMHost MyEsx 

$esx.ExtensionData.Config.Network.Pnic | %{
    $nicTab.Add($_.Key,$_.Device)
}

# Regular switches 
$esx.ExtensionData.Config.Network.Vswitch | %{
    $_.Pnic | %{
        $nicTab.Remove($_)
    }
}
# dvSwitches
 $esx.ExtensionData.Config.Network.ProxySwitch | %{
    $_.Pnic | %{
        $nicTab.Remove($_)
    }
}

# What is left ?
$nicTab.GetEnumerator()

[ehsanijavad]

Hi LucD

Thank you for your Scrips.

Do you have any update for this scrips?

How can I see the vSwitchs  and DVswitchs with their vmnics?

Thank you.

[LucD]

Try something like this

Get-View -ViewType HostSystem -PipelineVariable esx |

ForEach-Object -Process {

    $netSys = Get-View -Id $esx.ConfigManager.NetworkSystem

    foreach($vss in $netSys.NetworkInfo.Vswitch){

        foreach($nic in $vss.Pnic){

            $netSys.NetworkInfo.Pnic | where{$_.Key -eq $nic} |

            Select @{N='VMHost';E={$esx.Name}},

                @{N='Switch';E={$vss.Name}},

                @{N='SwitchType';E={'VSS'}},

                @{N='pNic';E={$_.Device}}

        }

    }

    foreach($vds in $netSys.NetworkInfo.ProxySwitch){

        foreach($nic in $vds.Spec.Backing.PnicSpec){

            $netSys.NetworkInfo.Pnic | where{$_.Device -eq $nic.PnicDevice} |

            Select @{N='VMHost';E={$esx.Name}},

                @{N='Switch';E={$vds.DvsName}},

                @{N='SwitchType';E={'VDS'}},

                @{N='pNic';E={$_.Device}}

        }

    }

}

[ehsanijavad]

Thank you LucD.

[ehsanijavad]

Thank you so much LucD.

Could you tell me what is the problem?

Thank you for your answer.

[LucD]

Looks like you might have switches with no pNICs connected.

Add a test for that.

$nicTab = @{}

$esx = Get-VMHost MyEsx

$esx.ExtensionData.Config.Network.Pnic | %{

    $nicTab.Add($_.Key,$_.Device)

}

# Regular switches

$esx.ExtensionData.Config.Network.Vswitch | %{

    $_.Pnic | %{

        if($_){

            $nicTab.Remove($_)

        }

    }

}

# dvSwitches

$esx.ExtensionData.Config.Network.ProxySwitch | %{

    $_.Pnic | %{

        if($_){

            $nicTab.Remove($_)

        }

    }

}

# What is left ?

$nicTab.GetEnumerator()

[ehsanijavad]

Thank you so much LucD.