Cannot find an overload error

[svillar]

Hi all, does anyone know why this runs on one host, but not when I run it in a for-each loop?

$vmhosts = Get-VMHost MyHost
$esxcli = Get-EsxCli -VMHost ($vmhosts) -V2
$naaID = "naa.####123"

ForEach ($VMHost in $VMHosts)
{
    
    #  Detach RDM
    Write-Host "Detaching $naaID from $VMHost"
    $esxcli.storage.core.device.set.Invoke(@{state="off"; device=$naaId})

}

The error is:

Cannot find an overload for "Set" and the argument count: "1".
At Remove stale detached RDMs from ESXi hosts.ps1:25 char:5
+     $esxcli.storage.core.device.set.Invoke(@{state="off"; device=$naa ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodException
    + FullyQualifiedErrorId : MethodCountCouldNotFindBest

[James Dougherty]

Hi,

You aren't setting $esxcli = Get-EsxCli -VMHost ($vmhosts) -V2 in your loop.  I haven't tested this but I'm pretty sure that's the issue.

[LucD]

The real reason you get that error is because the Get-VMHost MyHost line returns more than 1 VMHost object.
I tested it and got the same error message.

The possible reasons you are getting more than 1 object returned:
- there are multiple ESXi nodes with the name MyHost, which is very unlikely
- you have multiple connections open, check what is in $global:defaultVIServers

And yes, you should in that case place the Get-EsxCli line inside the loop.

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Blog: lucd.info  Twitter: @LucD22  Co-author PowerCLI Reference

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