In Huawei OceanStor 9000, Which Technologies Are Used to Improve

In Huawei OceanStor 9000, which technologies are used to improve the performance? (Choose three.)

A) SMB3 Multichannel is used to bring multi-core CPU and bandwidth resources of clients into full play, thereby significantly improving the performance.
B) The OceanStor DFS can combine write I/Os to a disk into large sequential I/Os, boosting system performance.
C) Internal file replication can be completed at a high speed in the system, without involving the client.
D) The back-end network can be established based on 10GE or PCIe. High-speed connections between nodes reduce internal latency, thereby offering superb performance.