This version should work under PowerCLI 6.5.
But, again, this method is not foolproof, and with Windows Server 2016 it will not work.
function Get-VMDiskMapping
{
<#
.SYNOPSIS
Creates a report to match Windows disk numbers and their
virtual disk counterparts.
.DESCRIPTION
This function creates an overview of the virtual machine's
virtual disks and their Windows counterparts.
.NOTES
Source: Automating vSphere Administration
Authors: Luc Dekens, Arnim van Lieshout, Jonathan Medd,
Alan Renouf, Glenn Sizemore
.PARAMETER VM
Specify the virtual machine to report on.
.PARAMETER HostCredential
Specify a PSCredential object containing the credentials you
want to use for authenticating with the host.
.PARAMETER GuestCredential
Specify a PSCredential object containing the credentials you
want to use for authenticating with the VM guest OS.
.EXAMPLE
PS> Get-VM VM001 | Get-VMDiskMapping
.EXAMPLE
PS> Get-VM VM001 | Get-VMDiskMapping -hostCredential $hostCred -guestCredential $guestCred | Out-GridView
#>
Param (
[parameter(ValueFromPipeline = $true, Mandatory = $true)]
[VMware.VimAutomation.ViCore.Types.V1.Inventory.VirtualMachine]$VM,
[System.Management.Automation.PSCredential]$hostCredential,
[System.Management.Automation.PSCredential]$guestCredential
)
#Create vbs scriptfile
$FileName = [System.IO.Path]::GetTempFileName()
‘Set objReg = GetObject(“winmgmts:{impersonationLevel=impersonate}!\\.\root\default:StdRegProv”)’ > $filename
‘Set objWMI = GetObject(“winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2”)’ >> $filename
‘Set colPCISlotNumber = CreateObject(“Scripting.Dictionary”)’ >> $filename
‘objReg.EnumKey &H80000002,”SYSTEM\CurrentControlSet\Enum\PCI”, colHardwareId’ >> $filename
‘For Each HardwareId In colHardwareId’ >> $filename
‘ objReg.EnumKey &H80000002,”SYSTEM\CurrentControlSet\Enum\PCI\” & HardwareId, colControllerId’ >> $filename
‘ For Each ControllerId In colControllerId’ >> $filename
‘ objReg.GetDWORDValue &H80000002,”SYSTEM\CurrentControlSet\Enum\PCI\” & HardwareId & “\” & ControllerId, “UINumber”, dwUINumber’ >> $filename
‘ colPCISlotNumber.Add “PCI\” & UCase(HardwareId) & “\” & UCase(ControllerId), dwUINumber’ >> $filename
‘ Next’ >> $filename
‘Next’ >> $filename
‘Set colDiskDrive = objWMI.ExecQuery(“Select * from Win32_DiskDrive”)’ >> $filename
‘Set colSCSIControllerDevice = objWMI.ExecQuery(“Select * from Win32_SCSIControllerDevice”)’ >> $filename
‘WScript.Echo “DiskPNPDeviceId,Index,SCSIPort,SCSITargetId,Size,CtrlPNPDeviceId,CtrlPCISlotNumber”’ >> $filename
‘For Each Disk in colDiskDrive’ >> $filename
‘ For Each item in colSCSIControllerDevice’ >> $filename
‘ If Replace(Split(item.Dependent,chr(34))(1),”\\”,”\”) = Disk.PNPDeviceId Then’ >> $filename
‘ CtrlPNPDeviceId = UCase(Replace(Split(item.Antecedent,chr(34))(1),”\\”,”\”))’ >> $filename
‘ Exit For’ >> $filename
‘ End If’ >> $filename
‘ Next’ >> $filename
‘ WScript.Echo Disk.PNPDeviceId & “,” & Disk.Index & “,” & Disk.SCSIPort & “,” & Disk.SCSITargetId & “,” & Disk.Size & “,” & CtrlPNPDeviceId & “,” & colPCISlotNumber.Item(CtrlPNPDeviceId)’ >> $filename
‘Next’ >> $filename
#Determine location to copy script to
$temp = Invoke-VMScript “echo %temp%” -vm $VM -HostCredential $hostCredential -GuestCredential $guestCredential -ScriptType “bat”
$destFileName = $temp.Trim(“`r`n”) + “\guestScsiInfo.vbs”
Copy-VMGuestFile -Source $FileName -Destination $destFileName -VM $VM -LocalToGuest -HostCredential $hostCredential -GuestCredential $guestCredential
Remove-Item $FileName
#Get Windows disk info
$error.Clear()
$Out = (Invoke-VMScript `
“cscript /nologo $destFileName && del $destFileName” `
-vm $VM -HostCredential $hostCredential `
-GuestCredential $guestCredential `
-ScriptType “bat”).ScriptOutput
if (!$error -and $Out)
{
$WinDisks = $Out | ConvertFrom-Csv
#Determine SCSIPort offset
$portOffset = ($WinDisks | Where-Object {$_.SCSIPort} | `
Measure-Object -Property SCSIPort -Minimum).Minimum
#All entries that don’t match any known pciSlotNumber are
#attached to scsi0. Change these entries to the pciSlotnumber
#of scsi0
$scsi0pciSlotNumber = ($VM.Extensiondata.Config.ExtraConfig | Where-Object{$_.key -like “scsi0.pciSlotNumber”}).value
$scsiPciSlotNumbers= @()
$VM.Extensiondata.Config.ExtraConfig | Where-Object {$_.key -like “scsi?.pciSlotNumber”} | ForEach-Object{
$scsiPciSlotNumbers += $_.value
}
$WinDisks | %{
if ($scsiPciSlotNumbers -notcontains $_.CtrlPCISlotNumber)
{
$_.CtrlPCISlotNumber = ($VM.ExtensionData.Config.Extraconfig | Where-Object{$_.key -like “scsi0.pciSlotNumber”}).value
}
}
#Create DiskMapping table
foreach ($VirtualSCSIController in ($VM.Extensiondata.Config.Hardware.Device | Where-Object {$_.DeviceInfo.Label -match “SCSI Controller”}))
{
foreach ($VirtualDiskDevice in ($VM.Extensiondata.Config.Hardware.Device | Where-Object {$_.ControllerKey -eq $VirtualSCSIController.Key}))
{
$VirtualDisk = New-Object PSObject -Property @{
VMSCSIController = $VirtualSCSIController.DeviceInfo.Label
VMDiskName = $VirtualDiskDevice.DeviceInfo.Label
SCSI_Id = “$($VirtualSCSIController.BusNumber) : $($VirtualDiskDevice.UnitNumber)”
VMDiskFile = $VirtualDiskDevice.Backing.FileName
VMDiskSizeGB = $VirtualDiskDevice.CapacityInKB * 1KB / 1GB
RawDeviceName = $VirtualDiskDevice.Backing.DeviceName
LunUuid = $VirtualDiskDevice.Backing.LunUuid
WindowsDisk = ""
WindowsDiskSizeGB = 0
}
#Match disks
if ([int]$vm.version.ToString().Replace("v","") -lt 7)
{
#For hardware v4 match disks based on controller’s SCSIPort an disk’s SCSITargetId.
#Not supported with mixed scsi adapter types.
$DiskMatch = $WinDisks | Where-Object {($_.SCSIPort – $portOffset) -eq $VirtualSCSIController.BusNumber -and $_.SCSITargetID -eq $VirtualDiskDevice.UnitNumber}
}
else
{
#For hardware v7 match disks based on controller’s pciSlotNumber and disk’s SCSITargetId
$DiskMatch = $WinDisks | Where-Object {$_.CtrlPCISlotNumber -eq ($VM.Extensiondata.Config.Extraconfig |
Where-Object {$_.key -match “scsi$($VirtualSCSIController.BusNumber).pcislotnumber”}).value -and $_.SCSITargetID -eq $VirtualDiskDevice.UnitNumber}
}
if ($DiskMatch)
{
$VirtualDisk.WindowsDisk = “Disk $($DiskMatch.Index)”
$VirtualDisk.WindowsDiskSizeGB = $DiskMatch.Size / 1GB
}
else
{
Write-Warning “No matching Windows disk found for SCSI id $($virtualDisk.SCSI_Id)”
}
$VirtualDisk
}
}
}
else
{
Write-Error “Error Retrieving Windows disk info from guest”
}
}
