A 200 GB LUN will have a SnapView session started on it. Two reserved LUNs of 20 GB each have been created to deal with the expected Copy on First Write (COFW) activity caused by source LUN…

A 200 GB LUN will have a SnapView session started on it. Two reserved LUNs of 20 GB each have been created to deal with the expected Copy on First Write (COFW) activity caused by source LUN activity. A decision is made to use the snapshot for testing. Fifty percent of the data will be changed by the secondary host. How much additional space should be added to the reserved LUN pool?