VMware Communities: Message List - Get RDM size

Re: Get RDM size

gboskin — Tue, 06 Jan 2009 14:17:23 GMT

Yes good old "Reboot" Vcenter solved the problem..

My next task is

1) how to add the Percentage of the RDM used .. ( Monitor the space left on the RDM)

2) List all RDM with less than 10% free

Re: Get RDM size

ief — Tue, 06 Jan 2009 13:52:38 GMT

Make sure you are connected to the vc

blog www.ivobeerens.nl

Re: Get RDM size

gboskin — Tue, 06 Jan 2009 12:15:58 GMT

yes exactly the same version ..was working ok till this afternoon..

Think i will have do give it a chinese cure " reboot vCenter"....

Re: Get RDM size

LucD — Tue, 06 Jan 2009 12:02:50 GMT

Are you running the samve VC version on both ?
Different versions use different APIs.
It could be that one VC doesn't support all the objects.

Re: Get RDM size

gboskin — Tue, 06 Jan 2009 11:16:18 GMT

Strange if i run the same script pointing to a diffrent Vcenter is works..?????????????? Point it back I get the same error

Any ideas ???

Re: Get RDM size

gboskin — Tue, 06 Jan 2009 11:00:44 GMT

You cannot call a method on a null-valued expression.

At :line:26 char:21

+ if(($dev.gettype( <<<< )).Name -eq "VirtualDisk"){

Re: Get RDM size

LucD — Tue, 06 Jan 2009 10:49:17 GMT

Can you attach the script you are using ?
I have no line 30

Re: Get RDM size

gboskin — Tue, 06 Jan 2009 10:36:46 GMT

I seem to be getting an error

You cannot call a method on a null-valued expression.

At :line:30 char:21

+ if(($dev.gettype( <<<< )).Name -eq "VirtualDisk"){

Re: Get RDM size

LucD — Tue, 06 Jan 2009 10:02:18 GMT

You could use the script from list disks rdm with powershell.
With a minor adaption it will also display the disk capacity.

$report = @()
$vms = Get-VM  | Get-View
foreach($vm in $vms){
  foreach($dev in $vm.Config.Hardware.Device){
    if(($dev.gettype()).Name -eq "VirtualDisk"){
	  if(($dev.Backing.CompatibilityMode -eq "physicalMode") -or 
	     ($dev.Backing.CompatibilityMode -eq "virtualMode")){
	    $row = "" | select VMName, HDDeviceName, HDFileName, HDMode, HDsize
          $row.VMName = $vm.Name
	    $row.HDDeviceName = $dev.Backing.DeviceName
	    $row.HDFileName = $dev.Backing.FileName
	    $row.HDMode = $dev.Backing.CompatibilityMode
           $row.HDSize = $dev.CapacityInKB
	    $report += $row
	  }
	}
  }
}
$report

An RDM is mapped via a .vmdk file.
Through the .vmdk file the size can be obtained.

Get RDM size

gboskin — Tue, 06 Jan 2009 08:51:06 GMT

Hi all and a happy new year to evryone..

The Following script gives a good list of all the RDM ..

$report1 = @()

$vms = Get-VM |Sort Name -Descending | Get-View

foreach($vm in $vms){

foreach($dev in $vm.Config.Hardware.Device){

if(($dev.gettype()).Name -eq "VirtualDisk"){

*if(($dev.Backing.CompatibilityMode -eq "physicalMode") -or *

($dev.Backing.CompatibilityMode -eq "virtualMode")){

$row = "" | select VMName, HDDeviceName, HDFileName, HDMode

$row.VMName = $vm.Name

$row.HDDeviceName = $dev.Backing.DeviceName

$row.HDFileName = $dev.Backing.FileName

$row.HDMode = $dev.Backing.CompatibilityMode

+$report1 = $row

}

$report1 | ConvertTo-Html -title "Virtual Machine information" -body "<H2>RDM information.</H2>" -head "<link rel='stylesheet' href='style.css' type='text/css' />" | Out-File -Append $filelocation

is there a way i can get the actual size (capacity) of the RDms..????