Script for attaching multiple existing disk to VM with specific scsi bus number and device number from CSV

Hello,

I was trying to attach multiple vmdk with specific scsi bus number and device number using import-csv method and onyx tools generated code,

Looks like it keep failed and  don't able add scsi bus number and associate device number, i have attached CSV for reference

#File Path

$csvpath = "C:\Users\Desktop\Final\TESt0001.csv"

$vmlist = Import-CSV -path $csvpath

# map the Variables

foreach ($item in $vmlist) {

$vmname = $item.vmname

$vmdk = $item.datastorepath

$busnumber = $item.SCSIBUSNUMBER

$unitnumber = $item.UNITNUMBER

$vm = Get-VM $vmname

Write-Host “Adding Disk “$vmdk” to “$vm” at SCSI ID “$busnumber”:”$unitnumber

$ctrll = Get-ScsiController -VM $vm | ?{$_.extensiondata.busNumber -eq $busnumber}

Write-Host “Controller Key “$ctrll.extensiondata.key

$spec = New-Object VMware.Vim.VirtualMachineConfigSpec

$spec.deviceChange = New-Object VMware.Vim.VirtualDeviceConfigSpec[] (1)

$spec.deviceChange[0] = New-Object VMware.Vim.VirtualDeviceConfigSpec

$spec.deviceChange[0].operation = “add”

$spec.deviceChange[0].device = New-Object VMware.Vim.VirtualDisk

$spec.deviceChange[0].device.key = -100

$spec.deviceChange[0].device.backing = New-Object VMware.Vim.VirtualDiskFlatVer2BackingInfo

$spec.deviceChange[0].device.backing.fileName = “”+$vmdk

$spec.deviceChange[0].device.backing.diskMode = “persistent”

$spec.deviceChange[0].device.connectable = New-Object VMware.Vim.VirtualDeviceConnectInfo

$spec.deviceChange[0].device.controllerKey = [int]$ctrll.extensiondata.Key

$spec.deviceChange[0].device.unitNumber = [int]$unitNumber

$spec.extraConfig = New-Object VMware.Vim.OptionValue[] (1)

$spec.extraConfig[0] = New-Object VMware.Vim.OptionValue

$spec.extraConfig[0].key = “scsi” + $busnumber + “:” + $unitnumber

$vm.ExtensionData.ReconfigVM($spec)

}

Error:

Exception calling "ReconfigVM" with "1" argument(s): "The device '0' is referring to a nonexisting controller '0'."

At line:50 char:1

+ $vm.ExtensionData.ReconfigVM($spec)

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException

    + FullyQualifiedErrorId : VimException