Refer to the exhibit.

A customer has a legacy DMX-3 at Site 1, where a BCV-R1 copy is taken of the production
volumes and then replicated to another DMX-3 at Site 2 via SRDF/A. The customer will replace
the legacy DMX-3 arrays at both sites with new VMAX arrays.
The customer wants to enable concurrent SRDF on the Site 1 SRDF source volumes, to maintain
disaster restart protection between the legacy DMX-3 arrays and migrate the legacy DMX-3 at Site
1 to the new VMAX array. What should you advise the customer?

A.
Concurrent SRDF migration is not supported for this configuration.

B.
Enable concurrent SRDF using SRDF/A from the BCV-R1.

C.
Host level migration is the only migration option for this configuration.

D.
Enable concurrent SRDF using SRDF/S from the BCV-R1.