If two or more pairs in a snapshot group share the same LDEV for the P-VOL, first split a pair, and then after the processing finishes, split the next pair. For details about how to store snapshot data in a snapshot group in which multiple volumes share a P-VOL, see Storing snapshot data in a snapshot group containing pairs sharing a P-VOL.
The following figure shows an example of splitting pairs. In this example, three pairs share a P-VOL in a snapshot group.