[URL]  When you take Compellent snapshot you freeze your volume. There is no data copy process - now, every new write data (I/O) from server to the volme takes additional space (new space is reserverd). How much space do you need for new writes of frozen volume? It depends on the volume change rate... 
Hi, I have worked with Equallogic too many years ago, but not in Compellent!!  If we take snapshot of a volume, then will the space cut down from it's volume ? then, the many times I take separate snapshot the more space will it cut from it's volume ?  Thanks in advance.. Jamshed
is snapshot size taken from it's volume ?