A Cascaded SRDF/Star environment consists of the workload at Site A, the synchronous target at Site B, and the asynchronous target at Site C. After a failure at Site A, a symstar switch command is…

A Cascaded SRDF/Star environment consists of the workload at Site A, the synchronous target at Site B, and the asynchronous target at Site C. After a failure at Site A, a symstar switch command is issued at Site B to move production to that site while preserving the data at Site B . Which symstar command(s) have to be executed from the management host at Site B to bring up MSC protection between Sites B and C?