text: **FlashCopy mapping states**
  At any point, a mapping is in one of the following states: 
  
  (cid:2) Idle or copied 
  
  The source and target volumes act as independent volumes, even if a mapping exists 
  between the two. Read and write caching is enabled for both the source and the target 
  volumes. If the mapping is incremental and the background copy is complete, the mapping 
  records only the differences between the source and target volumes. If the connection to 
  both nodes in the I/O group that the mapping is assigned to is lost, the source and target 
  volumes are offline. 
  
  (cid:2) Copying 
  
  The copy is in progress. Read and write caching is enabled on the source and the target 
  volumes. 
  
  (cid:2) Prepared 
  
  The mapping is ready to start. The target volume is online, but is not accessible. The 
  target volume cannot perform read or write caching. Read and write caching is failed by 
  the SCSI front end as a hardware error. If the mapping is incremental and a previous 
  mapping completed, the mapping records only the differences between the source and 
  target volumes. If the connection to both nodes in the I/O group that the mapping is 
  assigned to is lost, the source and target volumes go offline. 