Get-MyDisk.ps1

function Get-MyDisk {
    [CmdletBinding()]
    param(
        [Alias('DeviceId')]
        [int] $Number,
        [string] $FriendlyName
    )
    if (-Not ('Pinvoke.Win32Utils' -as [type])) {
        Add-Type -TypeDefinition @'
        using System.Runtime.InteropServices;
        using System.Text;
        namespace pinvoke {
            public static class Win32Utils {
                [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
                public static extern uint QueryDosDevice(string lpDeviceName, StringBuilder lpTargetPath, int ucchMax);
            }
        }
'@
    }
    $sbDeviceName = [System.Text.StringBuilder]::new(1024)
    foreach ($Disk in (Get-Disk @PSBoundParameters)) {
        foreach ($Partition in (Get-Partition $Disk.Number)) {
            foreach ($Volume in (Get-Volume -Partition $Partition)) {
                if ($Volume.DriveLetter) {
                    [void][PInvoke.Win32Utils]::QueryDosDevice(($Volume.DriveLetter + ':'), $sbDeviceName, $sbDeviceName.Capacity)
                }
                [PSCustomObject]@{
                    PSTypeName      = 'Custom.MyDisk'
                    Disk            = $Disk.Number
                    Health          = $Disk.HealthStatus
                    FilesystemLabel = $Volume.FilesystemLabel
                    DiskSizeGB      = [Math]::Round(($Volume.Size / 1GB), 2)
                    DiskfreeGB      = [Math]::Round(($Volume.SizeRemaining / 1GB), 2)
                    Partition       = $Partition.PartitionNumber
                    DriveLetter     = $Volume.DriveLetter
                    FriendlyName    = $Disk.FriendlyName
                    Harddiskvolume  = $sbDeviceName.ToString()
                    # Bootdisk        = $disk.BootFromDisk
                    # IsBoot          = $partition.IsBoot
                    # SystemPartition = $partition.IsSystem
                }
                [void]$sbDeviceName.Clear()
            }
        }
    }
}