Configuration patterns that prohibit pair creation – HP XP P9500 Storage User Manual
Page 75
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/TrueCopy Asynchronous for Mainframe/Continuous Access Journal
Z)
1
•
When copy types are different within a copy group container (Continuous Access Synchronous
Z/TrueCopy Asynchronous for Mainframe/Continuous Access Journal Z)
•
When copy groups contain some consistency group volumes (Business Copy Z/Continuous
Access Synchronous Z/TrueCopy Asynchronous for Mainframe/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/TrueCopy
Asynchronous for Mainframe/Continuous Access Journal Z)
through
show the configurations in which copy pair
creation is not allowed.
Figure 40 When copy types are different within a copy group container (Cnt Ac-S Z, TCA, or Cnt
Ac-J Z)
CAUTION:
Copy group containers cannot contain consistency groups of different copy types.
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.
Understanding copy group operations
75