The Full-VM level of a VCB backup will make a copy of the entire VMDK file, which represents the VM's disk. The only thing I have seen is to defrag and shrink the disk. This method is still only going to shrink a little bit of the file. Copy throughput is only going to be about 1GB / Minute. This seems to be a limitation of Windows when copying from a CMD prompt.
You may want to look at something that does data de-dupe before the backup process or at a third party VCB integrated backup tool.
Dave
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If the automobile had followed the same development cycle as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year, killing everyone inside.
Robert X. Cringely, InfoWorld magazine
Dave Convery, VCDX-DCV #20
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