Get-RDM.ps1

function Get-RDM {

    [OutputType([System.Management.Automation.PSCustomObject])]
    [cmdletbinding(DefaultParameterSetName = 'default')]
    param (
        [parameter(
            Mandatory = $true,
            ValueFromPipeline = $true,
            Position = 0,
            ParameterSetName = 'default')]
        [alias('VM')]
        [VMware.VimAutomation.ViCore.Types.V1.Inventory.VirtualMachine[]]
        $Name
    )

    BEGIN {

        Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)] Processing Started"


    } # end BEGIN

    PROCESS {

        foreach ($guest in $Name) {

            Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)] Working on VM {$($guest.Name)}"

            $rdmTest = $null
            $rdmTest = Get-HardDisk -VM $guest -DiskType 'RawPhysical','RawVirtual'

            $esxcli = $null
            $esxcli = Get-VMHost -VM $guest | Get-EsxCli -V2

            if ($rdmTest -and $esxcli) {

                try {

                    ForEach ($rdm in $rdmTest) {                        

                        Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)] Working on SCSi Device {$($rdm.ScsiCanonicalName)}"

                        $esxcliStorage = $null
                        $esxcliStorage = $esxcli.storage.core.device.list.invoke() | Where-Object { $psitem.Device -eq $rdm.ScsiCanonicalName }

                        [PSCustomObject]@{
                            VM                    = $rdm.Parent.toString()
                            DiskType              = $rdm.DiskType
                            FileName              = $rdm.FileName
                            DiskName              = $rdm.Name
                            ID                    = $rdm.Id
                            ParentID              = $rdm.ParentID
                            ScsiCanonicalName     = $rdm.ScsiCanonicalName
                            CompatibilityMode     = $rdm.ExtensionData.Backing.CompatibilityMode
                            DisplayName           = $esxcliStorage.DisplayName
                            IsPerenniallyReserved = $esxcliStorage.IsPerenniallyReserved
                            IsRDMCapable          = $esxcliStorage.IsRDMCapable
                            IsSharedClusterwide   = $esxcliStorage.IsSharedClusterwide
                            Model                 = $esxcliStorage.Model 
                            VAAIStatus            = $esxcliStorage.VAAIStatus 
                            Vendor                = $esxcliStorage.Vendor
                            vCenter               = ([uri]$guest.ExtensionData.Client.ServiceUrl).Host
                        } # end pscustomobject

                    } # end foreach

                } catch {

                    Write-Warning -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)][ERROR] Could not process VM {$($guest.Name)}. $_ "

                } # end try/catch

            } else {

                Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)][INFO] No RDM Found for VM {$($guest.Name)}. $_ "

            } # end if/else $rdmTest

        }# end foreach $guest

    } # end PROCESS

    END {

        Write-Verbose -Message "[$($PSCmdlet.MyInvocation.MyCommand.Name)] Processing Complete"

    } # end END

} # end function