By default, for pair split, the maximum multiple copy processing for each pair is set to 48. However, if you disable the Quick/Steady Split Multiplexing local replica option, the multiplicity can be changed to 1. Disable the Quick/Steady Split Multiplexing option if you prioritize host I/O. You can use CCI to modify the local replica options.
You can use one of the following methods to split pairs.
- paircreate –split -fq normal
- When copy of all differential data completes, the pairs are split.
- paircreate –split -fq quick
- Split all pairs in a consistency group in a batch. PPRC, Business Continuity Manager, or CCI is required to split pairs. PPRC: The splitting operation is the same as the one for Quick Split. Steady Split cannot be specified. Business Continuity Manager: The time for splitting pairs cannot be specified. CCI: Both Steady Split and Quick Split can be specified. For details, see the Command Control Interface User and Reference Guide.
- paircreate –g <group> -m grp [CTG ID]
- Split all pairs in a consistency group at one time. For details, see the Command Control Interface User and Reference Guide.