You can create virtual disks (VDisks) to be used as FlashCopy® mapping target VDisks by using the Creating FlashCopy Target VDisks wizard in the SAN Volume Controller Console. The Creating FlashCopy Target VDisks wizard guides you through the process of creating a target VDisk.
The FlashCopy feature makes an instant copy of a VDisk at the time that it is started. To create an instant copy of a VDisk, you must first create a mapping between the source VDisk (the disk that is copied) and the target VDisk (the disk that receives the copy). The source and target VDisks must be of equal size.