text: The output reports real capacity that is used on each of the storage tiers. Deduplication 
  savings are also shown. That compression-related values show 0 MB because they belong to 
  RtC (standard pool) compression. 
  
  For more information about every reported value, see lBM Knowledge Center. 
  
  **Migrating to and from DRP**
  Although data can be migrated regardless of the nature of the new volumes, the type of these 
  volumes determines which of the following migration strategies is: 
  
  (cid:2) Migration strategy for any source volume on a standard pool to thin or compressed volume 
  on DRP. 
  
  If you need to migrate a fully allocated, thin-provisioned, or compressed volume from a 
  standard pool to a fully allocated, thin-provisioned, or compressed volume in a DRP pool, 
  create a second volume copy. 
  
  To create a second copy, right-click the source volume and choose**Add Volume Copy**, as 
  shown in Figure 10-14 on page 426. Choose target DRP for the second copy and 
  **Capacity savings**type, None, Thin-provisioned, or Compressed. 
  
  You can select**Deduplicated**only if there are no RtC compressed volumes in your I/O 
  group. 
  
  After you click**Add**, synchronization starts. The time synchronization takes to complete 
  depends on the size of the volume and system performance. 