When the pairs in a consistency group receive updates while in the process of being split or suspended, or when they are about to be split or suspended, S-VOL data consistency is managed as follows:
- If I/O processing is in progress on pairs in the same consistency group, and the split or suspend operation begins, the I/O processing completes first, and then the split/suspend operation is performed.
The following figure shows that I/O processing is completed first, and then the pair split operation for the pair on Volume B is completed.
