A customer is migrating data to an array from a new storage vendor. The application needs to be
available 99.99% of the time during the migration. Which two should the customer do? (Choose
two.)

A.
Use device-based block virtualization to migrate the data between the arrays using a arraybased remote replication software.

B.
Use network-based block virtualization to migrate the data between the arrays using a meta
data server.

C.
Use host-based block virtualization to migrate the data between the arrays using a logical
volume manager.

D.
Use file/record layer virtualization to migrate the data between the arrays using clustering
software.