vmkfstools -i "Datapark.SBS2011-000002.vmdk" "Datapark.SBS2011-Clone.vmdk" -d thin -a lsilogic
Is it ok to run the command, or is it deleting all snapshot files?
It's not going to do anything to your source files.
it will simply read chain of delta along with base disk of your VM, and Clone them to a consolidated file called "Datapark.SBS2011-Clone.vmdk"