HP XP P9000 RAID Manager User Guide (T1610-96059, January 2014)

It is not possible to delete LDEVs directly from the copy group.
Use cases
The following shows use cases that can be deleted LDEVs from the device group forming a
copy group.
Deleting an LDEV (simplex volume) from a device group forming a copy group.
Deleting an LDEV (paired volume) from a device group forming a copy group.
Copy group deletion
Deleting a copy group by specifying a defined copy group.
LDEV grouping function 83