Find mapping between VMWare virtual disk and Harddisk inside Windows VM

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Home > VMWare platform > VMWare vSphere or ESXi > Find mapping between VMWare virtual disk and Harddisk inside Windows VM

If a VM has two hard-disks of same capacity (eg 500GB) then it is difficult to associate between VM virtual disk and hard-drive inside VM (C:, D:) as there is no way to co-relate between virtual disk provided by VMWare and disk visible inside Windows. Older version of Windows could perhaps do this based Location - See https://kb.vmware.com/s/article/2021947 But at least in Windows 10 and later versions this is not possible.


Not working steps are mentioned below:

  1. For one time installation of VMWare modules and enabling self-signed certificate, start powershell with administrator privileges and execute 
    [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
    

    Install-Module VMware.PowerCLI
    

    Set-ExecutionPolicy RemoteSigned
    

    Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -Confirm:$false
  2. Connect to vCenter server Required each time a new powershell is started' 
    Connect-VIServer  #And then give vcenter ip followed by empty line.  Them on popup enter username and password for vcenter.
    

    

    #OR
    

    Connect-VIServer -Server <vCenter-ip> -User administrator@vsphere.local -Password <Administrator-password>
  3. Replace the below variables with appropriate vm-name (vcenter level) and computer name (Windows level): 
    

    #Variables
    

    $Vm = Get-VM -Name 'saurabh-vmware-powercli-test'
    

    $ComputerName = 'Testpc1'
    Then copy paste the lines into the powershell where vcenter login was completed successfully.
  4. Copy / paste rest of this script:
$obj_DiskDrive = @()
$obj_LogicalDisk = @()
$obj_LogicalDiskToPartition = @()
$obj_DiskDriveToDiskPartition = @()
$obj_VMView = @()
$obj_DiskInfos = @()


#Get wmi objects
$obj_DiskDrive = Get-WmiObject -Class win32_DiskDrive -ComputerName $ComputerName
$obj_LogicalDisk = Get-WmiObject -Class Win32_LogicalDisk -ComputerName $ComputerName
$obj_LogicalDiskToPartition = Get-WmiObject -Class Win32_LogicalDiskToPartition -ComputerName $ComputerName
$obj_DiskDriveToDiskPartition = Get-WmiObject -Class Win32_DiskDriveToDiskPartition -ComputerName $ComputerName

#Get vm               
$obj_VMView = Get-View -ViewType VirtualMachine -Filter @{"Name" = "$($Vm.Name)"}

#Get vm disk
$obj_VMDisk = Get-HardDisk -VM $Vm

#Match the informations      
foreach ($obj_vmWareSCSIController in ($obj_VMView.Config.Hardware.Device | Where-Object -FilterScript {$_.DeviceInfo.Label -match "SCSI"})) 
{
    foreach ($obj_vmWareDiskDevice in ($obj_VMView.Config.Hardware.Device | Where-Object -FilterScript {$_.ControllerKey -eq $obj_vmWareSCSIController.Key})) 
    {                                    
        $obj_tempDiskInfos = "" | Select-Object -Property Date, vCenterName, vmName, vmWareSCSIController, wmWareSCSIID, vmWareDiskName, vmWareDiskFile,
            vmWareSizeGB, WindowsSerialNumber, WindowsSCSIBus, WindowsSCSILogicalUnit, WindowsSCSIPort, WindowsSCSITargetId, WindowsDisk, WindowsDriveLetter,
            WindowsLocicalDiskSizeGB, WindowsLocicalDiskFreeSpaceGB, WindowsLocicalDiskUsedSpaceGB

        #Select WMI object
        $obj_currentDiskDrive = @()
        $obj_currentDiskDrive = $obj_DiskDrive | Where-Object -FilterScript {$_.SerialNumber -eq $obj_vmWareDiskDevice.Backing.Uuid.Replace("-","")}

        $obj_currentDiskDriveToDiskPartition = @()
        $obj_currentDiskDriveToDiskPartition = $obj_DiskDriveToDiskPartition | Where-Object -FilterScript {$_.Antecedent -eq $obj_currentDiskDrive.Path}

        $obj_currentLogicalDiskToPartition = @()
        $obj_currentLogicalDiskToPartition = $obj_LogicalDiskToPartition | Where-Object -FilterScript {$_.Antecedent -eq $obj_currentDiskDriveToDiskPartition.Dependent}

        $obj_currentLogicalDisk = @()
        $obj_currentLogicalDisk = $obj_LogicalDisk | Where-Object -FilterScript {$_.Path.Path -eq $obj_currentLogicalDiskToPartition.Dependent}

        #Select vmWare object
        $obj_CurrentvmWareHarddisk = @()
        $obj_CurrentvmWareHarddisk = $obj_VMDisk | Where-Object -FilterScript {$_.Name -eq $obj_vmWareDiskDevice.DeviceInfo.Label}

        #Generate output
        $obj_tempDiskInfos.Date = Get-Date -Format "yyyy.MM.dd HH:mm:ss"
        $obj_tempDiskInfos.vCenterName = $defaultVIServer.Name
        $obj_tempDiskInfos.vmName = $Vm.Name
        $obj_tempDiskInfos.vmWareSCSIController = $obj_vmWareSCSIController.DeviceInfo.Label
        $obj_tempDiskInfos.wmWareSCSIID = "$($obj_vmWareSCSIController.BusNumber) : $($obj_vmWareDiskDevice.UnitNumber)"
        $obj_tempDiskInfos.vmWareDiskName = $obj_vmWareDiskDevice.DeviceInfo.Label
        $obj_tempDiskInfos.vmWareDiskFile = $obj_vmWareDiskDevice.Backing.FileName
        $obj_tempDiskInfos.vmWareSizeGB = $obj_CurrentvmWareHarddisk.CapacityGB              
        $obj_tempDiskInfos.WindowsSerialNumber = $obj_currentDiskDrive.SerialNumber
        $obj_tempDiskInfos.WindowsSCSIBus = $obj_currentDiskDrive.SCSIBus
        $obj_tempDiskInfos.WindowsSCSILogicalUnit = $obj_currentDiskDrive.SCSILogicalUnit
        $obj_tempDiskInfos.WindowsSCSIPort = $obj_currentDiskDrive.SCSIPort
        $obj_tempDiskInfos.WindowsSCSITargetId = $obj_currentDiskDrive.SCSITargetId
        $obj_tempDiskInfos.WindowsDisk = $obj_currentDiskDrive.Path.Path
        $obj_tempDiskInfos.WindowsDriveLetter = ($obj_currentLogicalDisk).Caption
        $obj_tempDiskInfos.WindowsLocicalDiskSizeGB = $obj_currentLogicalDisk.Size / 1GB
        $obj_tempDiskInfos.WindowsLocicalDiskFreeSpaceGB = $obj_currentLogicalDisk.FreeSpace / 1GB
        $obj_tempDiskInfos.WindowsLocicalDiskUsedSpaceGB = ($obj_currentLogicalDisk.Size / 1GB) - ($obj_currentLogicalDisk.FreeSpace / 1GB)

        $obj_DiskInfos += $obj_tempDiskInfos
    }
}

$obj_DiskInfos



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Home > VMWare platform > VMWare vSphere or ESXi > Find mapping between VMWare virtual disk and Harddisk inside Windows VM

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