vCLI Passthroughauth with Virtual Center to VM-Host

Hello,

i want to use the vCli vmkfstools with passthroughauth option to create/cline vmdk-files, but i get an error "Unable to create virtual disk with specified parameters.".

The vcenter and the esxi-hosts are full licensed.

I get this error only for "writing"-tasks like creating (-c), cloning (-i) or deleting (-U) disks.

When i use the option -P to print file system information, i get no error and the command works.

Also when i authenticate with username and password directly to the esxi-host i get no errors and can use all functions of vmkfstools.

I run the following command:

vmkfstools --server vc.domain.local --vihost vm.domain.local --passthroughauth -c 1G /vmfs/volumes/DATASTORE/test.vmdk

whith the following result:

Attempting to create virtual disk [DATASTORE] g.vmdk
Unable to create virtual disk with specified parameters.

I run the same command with --verbose option and get the following SOAP messages (excerpt):

Attempting to create virtual disk [DATASTORE] g.vmdk

REQUEST: $VAR1 = '<?xml version="1.0" encoding="UTF-8"?>
   <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                     xmlns:xsd="http://www.w3.org/2001/XMLSchema"
                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Body>
<CreateVirtualDisk_Task xmlns="urn:vim25">
  <_this type="VirtualDiskManager">virtualDiskManager</_this>
  <name>[DATASTORE] g.vmdk</name>
  <spec xsi:type="FileBackedVirtualDiskSpec">
   <diskType>preallocated</diskType>
   <adapterType>busLogic</adapterType>
   <capacityKb>1048576</capacityKb>
  </spec>
</CreateVirtualDisk_Task>
</soapenv:Body>
</soapenv:Envelope>
';

RESPONSE: $VAR1 = '<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<soapenv:Fault>
  <faultcode>ServerFaultCode</faultcode>
  <faultstring></faultstring>
  <detail>
   <InvalidArgumentFault xmlns="urn:vim25" xsi:type="InvalidArgument">
    <invalidProperty>dc</invalidProperty>
   </InvalidArgumentFault>
  </detail>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope>';

Unable to create virtual disk with specified parameters.

What is the "dc" property?

Thank you for your answers.