Param($LogFile)

if ((Get-Service -Name ClusSvc -ErrorAction SilentlyContinue).Status -ne "Running") {
  return 0
  exit
}

$unhealtydrives = 0
$drives = (Get-StorageSubsystem -FriendlyName "Cluster*"| Get-PhysicalDisk)
$outstr ="DeviceId, HealthStatus, Size, AllocatedSize,  PhysicalLocation, Node`n"
foreach ($drive in $drives) {
  $node = $drive|Get-StorageNode -PhysicallyConnected
  if ($node -ne $null) {
    $node = $node.Name
  } else {
    $node = "unknown"
  }
  if ($drive.HealthStatus -ne "Healthy") {
    $unhealtydrives += 1
  }
  $outstr += $drive.DeviceId + ", " + $drive.HealthStatus + ", " + $drive.Size + ", " + $drive.AllocatedSize + ", " + $drive.PhysicalLocation + ", " + $node + "`n"
}
if($LogFile -ne $null) {
  if (Test-Path "$LogFile.old") {
    Remove-Item "$LogFile.old"
  }
  if (Test-Path "$LogFile") {
    Copy-Item $LogFile "$LogFile.old"
  }
  $outstr 2>&1 | Out-File -Encoding default $LogFile
} else {
  #Write-Host $outstr
}
return $unhealtydrives