text: **11.2 Managing FlashCopy by using the GUI**
  
  It is often easier to work with the FlashCopy function from the GUI if you have a reasonable 
  number of host mappings. However, in enterprise data centers with many host mappings, use 
  the CLI to run your FlashCopy commands. 
  
  **11.2.1 FlashCopy presets**
  
  The IBM Spectrum Virtualize GUI interface provides three FlashCopy presets (Snapshot, 
  Clone, and Backup) to simplify the more common FlashCopy operations. 
  
  Although these presets meet most FlashCopy requirements, they do not support all possible 
  FlashCopy options. If more specialized options are required that are not supported by the 
  presets, the options must be performed by using CLI commands. 
  
  This section describes the preset options and their use cases. 
  
  **Snapshot**
  This preset creates a copy-on-write point-in-time copy. The snapshot is not intended to be an 
  independent copy. Instead, the copy is used to maintain a view of the production data at the 
  time that the snapshot is created. Therefore, the snapshot holds only the data from regions of 
  the production volume that changed since the snapshot was created. Because the snapshot 
  preset uses thin provisioning, only the capacity that is required for the changes is used. 