This question tests knowledge of the Huawei OceanStor Dorado series architecture, as covered in the *HCIP-Storage V5.5 Training Material (Module 2: Flash Storage Technologies)*. Let’s evaluate each option:
- Option A: True. The material confirms: “The back-end shared interface module of OceanStor Dorado 18000 is inserted into the enclosure, allowing simultaneous access to disk enclosures by all controllers in the engine.”
- Option B: True. The material states: “Dorado V6 series and converged storage products adopt the PCIe Scale-Out architecture for high-performance interconnects.”
- Option C: False. The material specifies: “OceanStor Dorado 18000 uses 100 Gbit/s RDMA shared interface modules for cross-engine expansion, supporting full interconnection between 8, 12, and 16 controllers.” The claim of 200 Gbit/s RDMA is incorrect, as 100 Gbit/s is the standard for Dorado 18000.
- Option D: True. The material notes: “OceanStor Dorado 18000 supports up to 28 interface modules and uses a 100 Gbit/s RDMA network for intra-engine mirroring and cross-engine interconnection.”
Thus, option C is false due to the incorrect RDMA speed.
[Reference: , HCIP-Storage V5.5 Training Material, Module 2: Flash Storage Technologies, Section 2.3: OceanStor Dorado 18000 Architecture*, Huawei Technologies Co., Ltd., , ---, ]
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