A customer who has been using Metro Mirror with an Enhanced Remote Mirroring (ERM)
configuration to mirror the company inventory database from headquarters to a data warehouse at
a remote site has asked for some assistance. Due to bandwidth concerns they need to change the
mirroring mode to Global Mirroring. What must be done to help the customer make the change?

A.
Advise the customer to purchase two new licenses.

B.
Break and re-establish the mirror relationship.

C.
Backup the inventory data to tape.

D.
Make the mode change in Storage Manager.