LVM.DisallowSnapshotLun

[jasonrobinson]

I have the following script and it runs without any errors however it doesnt change the value of LVM.DisallowSnapshotLun. Can anyone please let me know what I am missing? Thanks.

$VMHosts= Get-VMHost -State "Connected" { $VMHost = $VMHosts \

Get-View $optmgrMoRef = $VMHost.configManager.advanceOption $optmgr = $optmgrMoRef \

Get-View $optarray = $optmgr.QueryOptions("LVM.DisallowSnapshotLun") $optarray[0].Value = 0 $optmgr.UpdateOptions($optarray) }

[LucD]

The script block that you want to execute for each "connected" vmHost needs to be in a foreach (alias %) loop.

There was a typo in $VMHost.configManager.advanceOption, that should be $VMHost.configManager.advancedOption.

To convert a MoRef you need to use the -Id parameter of the Get-View cmdlet. This can't be done via the pipe.

This should work.

Get-VMHost -State "Connected" | %{
    $vmHost = $_ | Get-View
	$optmgrMoRef = $vmHost.configManager.advancedOption
	$optmgr = Get-View -Id $optmgrMoRef 
	$optarray = $optmgr.QueryOptions("LVM.DisallowSnapshotLun")

	$optarray[0].Value = 0
	$optmgr.UpdateOptions($optarray)
}

[jasonrobinson]

Thanks LucD,

One last thing, I am trying to run a report on all of the hosts to gather there current LVM.DisallowSnapshotLun setting. I think I am real close however I cant get the value to transverse. Here is what I have so far.

$report = @()

$vmhosts = Get-VMHost -State "Connected"

foreach ($vmHost in $vmhosts){

$esxhost = $vmHost | Get-View

$optmgrMoRef = $esxhost.config.option | ? {$_.Key -eq "LVM.DisallowSnapshotLun"}

$row = "" | Select VMHost, Value

$row.vmhost = $vmhost

$row.value = $optmgrMoRef

$report += $row}

$report | Export-Csv .\lvminfo.csv -NoTypeInformation

[LucD]

Instead of storing the objects $vmhost and $optmgrMoRef in the $row variable, you should assign the actual properties in those objects.

Something like this:

$report = @()
$vmhosts = Get-VMHost -State "Connected"
foreach ($vmHost in $vmhosts){
	$esxhost = $vmHost | Get-View
	$optmgrMoRef = $esxhost.config.option | ? {$_.Key -eq "LVM.DisallowSnapshotLun"}
	$row = "" | Select VMHost, Value
	$row.vmhost = $vmhost.Name
	$row.value = $optmgrMoRef.Value
	$report += $row
}
$report | Export-Csv ".\lvminfo.csv" -NoTypeInformation