3 Replies Latest reply on Mar 24, 2010 5:38 AM by ae_jenkins

    Thin Provisioned Disks

    ae_jenkins Enthusiast

      So, I'm pretty good with PowerCLI, but really bad with API calls . . . here goes my question.

       

      The "get-harddisk" cmdlet in v4 of course has the "StorageFormat" property, identifying if the HD is thin or thick.  Is there a way (API or otherwise) to pull in both the "defined" vHD size and the actual vHD size?  For example, if I give a VM a 40 GB vHD, this is the "defined" size.  If I only put 1 GB of data on the vHD, the "actual" size would be roughly 1 GB.  I'm looking for that difference (39 GB).

       

      Any ideas?  I'm looking at you LucD 

       

      Thanks

      Alan

        • 1. Re: Thin Provisioned Disks
          LucD Guru
          Community WarriorsvExpertUser Moderators

          Try something like this, it's not to most elegant solution I admit.

          $vmName = <vm-name>
          
          $vm = Get-VM $vmName | Get-View
          $vm.Config.Hardware.Device | where {$_.DeviceInfo.Label -like "Hard disk *"} | %{
               $hd = $_
               $hdKey = $hd.Key
               $vm.LayoutEx.Disk | where {$_.Key -eq $hdKey} | %{
                    $files = $_.Chain | %{$_.FileKey} | %{$_}
               }
               $allocated = 0
               $vm.LayoutEx.File | where {$files -contains $_.Key} | %{
                    $allocated += $_.Size
               }
               Write-Host $hd.DeviceInfo.Label $hd.CapacityInKB ($allocated/1KB)
          }
          

          The sizes are displayed in KB.

           

           

           

          ____________

          Blog: LucD notes

          Twitter: lucd22

          1 person found this helpful
          • 2. Re: Thin Provisioned Disks
            LucD Guru
            User ModeratorsCommunity WarriorsvExpert

            Fyi, I expanded on the script below in yadr – A vdisk reporter.

             

             

             

             

            ____________

            Blog: LucD notes

            Twitter: lucd22

            • 3. Re: Thin Provisioned Disks
              ae_jenkins Enthusiast

              Hi LucD

               

              Wow - thanks so much for all this information - I have been pulled away from this task temporarily, but with all the work you put into this I'm sure it's either totally correct or will send me in the right direction.  Points to you sir.