text: Figure 11-143 Switched Remote Copy Relationship 
  
  **11.9.11 Switching a Consistency Group direction**
  
  When a remote copy consistency group is in the consistent synchronized state, the copy 
  direction for the consistency group can be changed. 
  
  **Important:**When the copy direction is switched, it is crucial that no outstanding I/O exists 
  to the volume that changes from primary to secondary because all of the I/O is inhibited to 
  that volume when it becomes the secondary. Therefore, careful planning is required before 
  you switch the copy direction for a relationship. 