hello everyone

i am designing some simple script to retrieve VM Hard Disk information with PowerCli and i got some pretty weird issue: i ocasionally get runtime execution errors with vc server disconnection, but after the error, i can retrieve info on the same vcenter with simple commands (like Get-VM for instance). The vc farms still available over viclient and powercli all the time, so it must be something on the code

the steps i use to reproduce the strange behavior:

(Using Powercli 5.5 and Powershell 3.0. Error still happens with Powercli 5.1)

- Connect to vcenter (multiple servers)

- run the command and it eventually gets stuck in line 12 ($ghd = Get-HardDisk (Get-VIObjectByVIView $VMView)) with the error 'Server XXXX is disconnected'

- Run some other command (like get-vm) to certify that server is still connected

sample script is below

Function Get-VMDiskInfo {
  [CmdletBinding()]
  Param (
  [Parameter(Mandatory=$true,
  ValueFromPipeline=$True,
  ValueFromPipelineByPropertyName=$true)]
  [Alias('Name')]
  $VM
  )
  PROCESS{
  $VMView = Get-View -ViewType VirtualMachine -Filter @{"Name" = $VM}
  $ghd = Get-HardDisk (Get-VIObjectByVIView $VMView)
    $output = @()
  ForEach ($VirtualSCSIController in ($VMView.Config.Hardware.Device | Where {$_.DeviceInfo.Label -match “SCSI Controller”})){
  ForEach ($VirtualDiskDevice in ($VMView.Config.Hardware.Device | Where {$_.ControllerKey -eq $VirtualSCSIController.Key})){
  $VMSummary = “” | Select  VM,Disk, SCSI, DiskType, DiskFormat, DiskSizeGB, DiskFile
  $VMSummary.VM = $VM
  $VMSummary.SCSI = [string]::Concat($VirtualSCSIController.BusNumber,":",$VirtualDiskDevice.UnitNumber)
  $VMSummary.Disk = $VirtualDiskDevice.DeviceInfo.Label

  #pegando info do Get-Harddisks
  $d = $ghd | ? {$_.Name -match $VirtualDiskDevice.DeviceInfo.Label}
  $VMSummary.DiskType = $d.DiskType
  $VMSummary.DiskSizeGB = [Math]::Round($d.capacityGB,2)
  $VMSummary.DiskFile = $d.filename

  if($d.Disktype -eq "Flat"){
  $VMSummary.DiskFormat = $d.StorageFormat
  }
     
  $output += $VMSummary
            }
  }
            Write-Output $output
  }
}

does anyone have any idea whats going on ?

almost forgot, sorry about the messy code and the poor english...

thanks in advance