Assign SCSI Target # "UnitNumber" during a new VMDK creation

[vwbivansc]

Hi,

 

I already have working code to add new or existing VMDKs to specific VM SCSI Controllers and even create brand new controllers if I need to. What I'm looking to do is assign the disk Unit number during the new-harddisk. example scsi 3:6. I haven't seen any syntax in new-hardisk to do this.

 

From research I've done, people have said do the new-harddisk the regular way and then do a reconfigure with change information about the unitnumber. But it appears that way doesn't work if the VM is running. I did borrow/write code that works when the VM is down. But I really want the unitnumber assigned or updated while its running.

 

Here is the code I have currently.

$vmobj = get-vm "VM Xyz"
$scsicontroller = 2
$scsitarget = 5
$controllers = get-scsicontroller -vm $vmobj | Where-object {$_.Key -eq 1000 + $scsicontroller -or $_key -eq $scsicontroller}
        if(-not $controllers) {
            $spec = New-Object VMware.Vim.VirtualMachineConfigSpec
            $device = New-Object VMware.Vim.VirtualDeviceConfigSpec
            $device.Operation = [VMware.Vim.VirtualDeviceConfigSpecOperation]::add
            $device.Device = New-Object VMware.Vim.ParaVirtualScsiController
            $device.Device.BusNumber = $scsicontroller
            $spec.DeviceChange += $device
            #write-output("Adding SCSI Controller $scsicontroller")
            $vmobj.ExtensionData.ReconfigVM($spec)
            $vmobj.ExtensionData.UpdateViewData()
        } else {
            #write-output("Found SCSI Controller $scsicontroller")
            $foundcontroller = $true
        }
$newdisk = new-harddisk -persistence "Persistent" -vm $vmobj -storageformat "Thick" -Datastore "DatastoreXYZ" -capacitygb 10 -disktype "flat"
if(-not $newdisk) {
    write-error("Disk was not created")
    write-output("INFO: status=1")
    exit(1)
}
if($scsitarget -ne -1) {
	$spec = New-Object VMware.Vim.VirtualMachineConfigSpec
	$device = New-Object VMware.Vim.VirtualDeviceConfigSpec
	$device.operation = [VMware.Vim.VirtualDeviceConfigSpecOperation]::edit
	$device.device = $newdisk.extensiondata
	$device.device.unitnumber = -($scsitarget)
	$spec.DeviceChange += $device
	$vmobj.ExtensionData.ReconfigVM($spec)
}

[vwbivansc]

Actually, it looks like what I thought was working code to change scsi id on a down VM doesn't work either. The question is still about adding a VMDK with scsi unitnumber set, but here is the error I get when trying to change the unitnumber for an existing disk.

$device.device.unitnumber = -($scsitarget)
InvalidOperation: The property 'unitnumber' cannot be found on this object. Verify that the property exists and can be set.
I also tried $device.device.unitnumber = ($scsitarget)