Pair splitting methods
You can use one of the following methods to split pairs:
Steady Split: Copies the differential data to the S-VOL then splits the pair. The split S-VOL is identical to the P-VOL at the time of the split.
You cannot Steady Split pairs that are assigned to a CTG.
Quick Split: The pair is split prior to data copy so that the S-VOL is immediately available for read and write I/O. Any remaining differential data is copied to the S-VOL in the background.
CCI is required.
Consistency group pair-split: Simultaneously split all of the pairs in a CTG. You can use this method with the CCI.
(For CCI) You can Quick Split and Steady Split.
For more information about the methods you can use to split pairs using BCM, see the Hitachi Business Continuity Manager User Guide.