Now have a virtual SAN array (with functions of dedup), can provide two kinds of interface: NFS and iSCSI, if is the manner in which iSCSI connection on the Host, vSAN with 100 g of disk, and then I clone ten of the VM to the export of disk, on the vmware datastorage it shows almost will fill 100 g of disk (we provide storage VM nodes, only take up about 20 g), but we offer 100 g disk, over NFS clone10 VM, the same will only account for the size of the 25 g, so the question is vmware provided the VMFS file system, it won't tube you below how much remaining in the real, it only know that you gave me 100 g, so I used the how much is how much, is it? Is there any way that is to make it consistent with the real situation?