I have checked and found that ovirt support two type of disk formats (RAW & QCOW2)...but bydefault it create the VM disk with RAW format....i try but didn't find any way to change this format to qcow2 ??

How i can change the default vm disk from RAW to QCOW2 ??

I am using the below :- 

Ovirt :- 3.4.3

Glusterfs :- 3.5

Thanks,

Punit