HP XP P9000 Business Continuity Manager User Guide (T5253-96086, November 2013)

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

• 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

• 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)

Figure 40 (page 75) through Figure 42 (page 77) 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