SmartVirtualization Is an Important Value-Added Feature of Huawei OceanStor V3

Multiple Choice

SmartVirtualization is an important value-added feature of Huawei OceanStor V3 storage system. Which of the following is correct about its principle and related concepts? (multiple choice)

A) The local storage system does not occupy the local storage system when using LUNs in heterogeneous storage systems
B) For external LUNs, the local storage system can set value-added functions such as remote replication, snapshots, etc.
C) smartVirtualization uses multipathing software to connect heterogeneous storage in a multipath-redundant manner
D) smartVirtualization Dictate write data write efficiency is higher than the write-back efficiency