We have noticed that a referenced drive associated with a VM that was started but the user never logged in ended up having the reference disk grow to the size of the parent disk.
This is actually happening for all of our referenced drives as time goes one.
Because the parent is 120GB of information, this behavior is eating away our disk space.
Am I wrong to expect that the differencing drive would only contain the modified portions of the parent disk plus any additions, thereby minimizing overall disk usage?