Why do not the remove-hard drive remove a disc with a new SCSI controller?

Hi PowerCLI gurus,

I try to use PowerCLI to automate the solution for article configuration of disks to use VMware Paravirtual (PVSCSI) SCSI adapters (1010398).

Remove-hard drive sometimes gives me a misleading error when I use it to remove a hard drive with a new SCSI controller.

The FlatHardDisk specified 'Hard disk 3' no longer exists, or never existed.

Can anyone here explain the error?

My version of vCenter server is 5.1.0.

My PowerCLI version is 2.0.

Here's what I've done to reproduce the error.

First of all, I connect to vCenter and stop the virtual machine.

$TestVM = 'TESTVM '.

$TestServer = ' vcenter - test.local ".

SE connect-VIServer-Server $TestServer

Stop-VM - $TestVM VM - confirm: $false

I add a new hard drive and store it in a variable so I can refer to it for the next steps.

New hard drive '.

-VM $TestVM '

-Persistent persistence"

-Flat DiskType '

CapacityKB - 1024'

StorageFormat - thin '

-OutVariable TempDisk

I make a note of its name.


Because my VM already has 2 discs, the output is "hard drive 3.

Then I add a new SCSI controller on the hard drive.

New SCSI controller.

Hard drive - $TempDisk '

-Type ParaVirtual '

NoSharing - BusSharingMode

Now, I try to remove the hard drive from the variable to remove the disc.

Remove-hard drive - hard drive $TempDisk - DeletePermanently-confirm: $false

It fails with an error that says "Hard drive 3" has already been removed.

Remove HDD: 12/02/2014-18:51:33 remove-hard drive the FlatHardDisk specified 'Hard disk 3' no longer exists, or never existed.

On line: 1 char: 1

+ Delete-hard drive - hard drive $TempDisk - DeletePermanently-confirm: $false

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo: ObjectNotFound: (3:FlatHardDiskImpl drive) [Remove-hard drive], VimException

+ FullyQualifiedErrorId: Client20_VirtualDeviceServiceImpl_TryValidateDeviceExists_DeviceDoesNotExist, VMware.VimAutomation.ViCore.Cmdlets.Commands.RemoveHardDisk

But I see that there are still "hard drive 3"!

Get-disk hard - VM $TestVM - name 'hard drive 3.

CapacityGB persistence Filename

----------      -----------                                    --------

0.001 persist... B-DATA-01] TESTVM/TESTVM_9.vmdk

Is this a bug or am I missing something?


I don't think that the cmdlet uses actually the UID, but more likely a MoRef to the vSphere object that represents the hard disk.

Remember that under the covers most of the PowerCLI cmdlets do calls to the vSphere API.

Change the Uid, property value indicates that the hard drive connected to the new controller is a new and different purpose.

And this explains why the hard drive remove does not work with the original hard disk object, it no longer exists.

Tags: VMware

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