Starting with Ops Center Administrator v11.0.3, the LU Number assigned to P-VOLs and S-VOLs in a remote replication group GAD pair must be the same. Additionally, the LU Number must be unique between GAD pairs within the same remote replication group.
In legacy remote replication groups, when attaching a new server to the GAD pair, you can assign different LU Numbers to each P-VOL and S-VOL.
However, in remote replication groups, the same LU Number should be assigned to each GAD pair.
For more information, see the following diagrams: