Re: How to extend/optimize this multi vc datastore inventory script

Thank you for taking time (what, it's almost 02:00 a clock in Belgium, don't you sleep ever?).

I like your oneliners in orders to retrieve these properties. They are correct syntatically (if i use them outside of this script) but for some reason they end up with errors inside this script. I suspect that it has to do with the way how the loop for datastore is defined and every time when i try to call something by utilizing .extensiondata then it fails with The argument is null or empty.

I guess this part of a script already does get-view which makes the .extensiondata not usable.

$VMHost | Get-DataStore | Where-Object { $_.Name -notlike "*local*"} | Sort-Object Name | get-view | %{
            $row = "" | Select-Object Rec_ID, ScanDate, ScanTime, Infra, vCenter, Datacenter,

The following error message is something i get every time i try to utilize .extensiondata.

Get-View : Cannot validate argument on parameter 'VIObject'. The argument is null or empty.Supply an argument that is not null or empty and then try the command again.
At scriptname.ps1<line #> char:<char#>
+   $row.VMsHosted= [string]::Join("|",(Get-View <<<<  $dst.ExtensionData.VM | %{$_.Name}))
    + CategoryInfo          : InvalidData: (:) [Get-View], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,VMware.VimAutom
   ation.ViCore.Cmdlets.Commands.DotNetInterop.GetVIView

And about LUN uuid:

i'm using this one but it's so slow. I was looking for something faster that might integrate with this script.

function GetLunUUID([string]$vmhost,[string]$dsname) {
$ds = Get-View (Get-View (Get-VMHost -Name $vmhost).ID).ConfigManager.StorageSystem
foreach ($vol in $ds.FileSystemVolumeInfo.MountInfo) {
  if ($vol.Volume.Name -eq $dsname) {
   # Write-host "DS Name:`t" $vol.Volume.Name
   # Write-host "VMFS UUID:`t" $vol.Volume.Uuid
   foreach ($volid in $vol.Volume.Extent) {
    foreach ($lun in $ds.StorageDeviceInfo.MultipathInfo.Lun){
     if ($lun.Id -eq $volid.DiskName) {
      break
     }
    }
   }

  # Write-Host "LUN Name:`t" $lun.ID
  $mid = $lun.ID
  foreach ($id in $ds.StorageDeviceInfo.ScsiLun) {
   if ($id.CanonicalName -eq $mid) {
    $uuid = $id.Uuid
    # Write-host "LUN UUID:`t" $uuid
    }
   }
  }
}
return $uuid
}

O;-), and i saw you script with datastores view at:  http://www.lucd.info/2011/11/14/storage-views-datastores/.

After this i will try to pick up some addtional properties that you offer in that script. Great!