Figure 34 Copy Group Containers with an EXCTG ID Specified (Cnt Ac-J Z)
NOTE: Consistency is preserved for copy group containers with an EXCTG ID specified.
Configuration Patterns that Prohibit Pair Creation
Copy pair creation is prohibited in the following cases:
• When the capacities of the P-VOL and S-VOL are different (Business Copy Z/Continuous
Access Synchronous Z/Continuous Access Asynchronous/Continuous Access Journal Z)
1
• When copy types are different within a copy group container (Continuous Access Synchronous
Z/Continuous Access Asynchronous/Continuous Access Journal Z)
• When copy groups contain some consistency group volumes (Business Copy Z/Continuous
Access Synchronous Z/Continuous Access Asynchronous/Continuous Access Journal Z)
• When a copy group contains both a consistency group and copy pairs that are not in the
consistency group (Business Copy Z/Continuous Access Synchronous Z/Continuous Access
Asynchronous/Continuous Access Journal Z)
Figure 35 (page 61) through Figure 37 (page 62) show the basic patterns for which copy pair
creation is not allowed.
1. If you want to perform a migration, creation of a copy pair where the capacity of the S-VOL is larger than that of the
P-VOL might be allowed. For details, see the guide of the corresponding program.
60 Business Continuity Manager with replication products