Get-WindowsDiskInfo.ps1 - used to enumerate model/manufacturer & space info about disks

Get-WindowsDiskInfo.ps1

$results = @()

foreach ($disk in Get-CimInstance Win32_Diskdrive) {

    Write-Host "Fetching info for $($disk.DeviceID)..."

    $diskMetadata = Get-Disk | Where-Object { $_.Number -eq $disk.Index } | Select-Object -First 1

    # you don't get meta data back from a dynamic disk
    if (!$diskMetadata) {
              
    }

    $partitions = Get-CimAssociatedInstance -ResultClassName Win32_DiskPartition -InputObject $disk

    foreach ($partition in $partitions) {

        $drives = Get-CimAssociatedInstance -ResultClassName Win32_LogicalDisk -InputObject $partition

        foreach ($drive in $drives) {

            $totalSpace = [math]::Round($drive.Size / 1GB, 3)
            $freeSpace = [math]::Round($drive.FreeSpace / 1GB, 3)
            $usedSpace = [math]::Round($totalSpace - $freeSpace, 3)

            $volume = Get-Volume |
            Where-Object { $_.DriveLetter -eq $drive.DeviceID.Trim(":") } |
            Select-Object -First 1

            if ($diskMetadata) {
                $serial = $diskMetadata.SerialNumber.Trim()
                $Manufacturer = $diskMetadata.Manufacturer
                $Model = $diskMetadata.Model
                $PartitionStyle = $diskMetadata.PartitionStyle
            }
            else {
                #could check this using
                #Get-WmiObject Win32_DiskPartition -filter "Type='Logical Disk Manager'" | where DiskIndex -eq $disk.Index 
                $Manufacturer, $PartitionStyle, $serial = 'N/A'
                $Model = $disk.Model  
            }

            # partitions are listed multiple times for dynamic disks
            if ($results.driveletter -notcontains $drive.DeviceID) {
                $results += [PSCustomObject] @{
                    DriveLetter   = $drive.DeviceID
                    Number        = $disk.Index

                    Label         = $volume.FileSystemLabel
                    Manufacturer  = $Manufacturer
                    Model         = $Model
                    SerialNumber  = $serial
                    Name          = $disk.Caption

                    FileSystem    = $volume.FileSystem
                    PartitionKind = $PartitionStyle

                    TotalSpace    = $totalSpace
                    FreeSpace     = $freeSpace
                    UsedSpace     = $usedSpace

                    Drive         = $drive
                    Partition     = $partition
                    Disk          = $disk
                }
            }

        }
    }
}

$results | sort DriveLetter | select DriveLetter, Label, Manufacturer, Model, TotalSpace, FreeSpace, UsedSpace | ft -AutoSize