ESXi 4.1 VM thin provistioned with drive of 270 using 12GB

We have a new ESXi 4.1 server.  We are using it to build a Windows 2008 R2 server VM that will be put on like ESXi 4.1 machines and sent out to client sites to be used as needed by the clients.  The VM is as follows:
272GB data store
VM is thin provisioned
Provisioned with 270GB, uses 12GB when windows and updates installed

PROBLEM:
After the VM is build and windows is installed I am using Vcenter client and FastSCP to copy the VMDK files to secondary storage locations.
FastSCP is telling me that is has to move 270GB's of data
the amount of actual used space is 12GB.
I thought thin provisioning only took up how much space is used.
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ThinkSmartIncAsked:
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Matt VConnect With a Mentor Commented:
When you remove the VMDK from the storage, it does a block level copy which amounts to the entire disk being copied.  We are running into this with our backup software as well using VCB and the VDDK backup APIs.
 
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robdcoyConnect With a Mentor Commented:
Assuming you have vSphere vCenter Server, if you are trying to just take a copy of the base install, the only alternative is to convert this VM to a template, and export as an OVF template.  This will allow you to have a copy of the VM with the thin drives.  Then convert the template back into a VM.
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ThinkSmartIncAuthor Commented:
No VCenter server
just a single EXSi 4.1 server that houses the image.  I want to make a backup, because the ESXi server that currently houses the VM image is scheduled to ship out on Friday and I don't want to recreate the VM with the next one I build.
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Matt VConnect With a Mentor Commented:
You are stuck with the full size then.  You can try VMware Converter and see if it will do any better but I suspect it will not.
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ThinkSmartIncAuthor Commented:
thx guys
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