多项选择题

A.Implement Snapshot feature of Storage Manager.
B.Implement Flashcopy feature of Storage Manager.
C.Provide remote volume mirroring (RVM) feature of Storage Manager.
D.Implement MSCS clustering on an x455 attached to a shared Fibre DS4000 SAN fabric.
E.Implement MSCS clustering on an x445 attached to a shared Fibre DS4000 SAN fabric.