When the remote replications in a 3DC configuration share the same volumes with the local replications (SI/HTI), expand the volume capacity in each following group in the order as shown in the figure.
The expansion order in each group follows the expansion order in the local replication. In a 3DC multi-target or 3DC delta resync configuration, expand the volume capacity in the same way.
- Expand the S-VOL group that consists of the S-VOL in the remote replication and all volumes in the local replication with which the S-VOL shares the same volume.
- Expand the P-VOL group that consists of the P-VOL in the remote replication and all volumes in the local replication with which the P-VOL shares the same volume.