3. Because the master-auxiliary relationship direction is reversed, write access is disabled  on the new auxiliary volume (former master volume), whereas it is enabled on the new  master volume (former auxiliary volume). A warning message is displayed, as shown in  Figure 11-142. Click  Yes . 4. When a remote copy relationship is switched, an icon is displayed in the Remote Copy  panel list, as shown in Figure 11-143. 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. 618  Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.2.1 11.9.11 Switching a Consistency Group direction Figure 11-142 Switching master-auxiliary direction of relationships changes the write access Figure 11-143 Switched Remote Copy Relationship