text: **11.1.12 Reverse FlashCopy**
  
  Reverse FlashCopy enables FlashCopy targets to become restore points for the source 
  without breaking the FlashCopy mapping, and without having to wait for the original copy 
  operation to complete. A FlashCopy source supports multiple targets (up to 256), and 
  therefore multiple rollback points. 
  
  A key advantage of the IBM Spectrum Virtualize Multiple Target Reverse FlashCopy function 
  is that the reverse FlashCopy does not destroy the original target. This feature enables 
  processes that are using the target, such as a tape backup or tests, to continue uninterrupted. 
  
  IBM Spectrum Virtualize also provides the ability to create an optional copy of the source 
  volume to be made before the reverse copy operation starts. This ability to restore back to the 
  original source data can be useful for diagnostic purposes. 