How many controllers failed can OceanStor Dorado high-end product tolerant, with SmartMatrix architecture?

How many controllers failed can OceanStor Dorado high-end product tolerant, with SmartMatrix architecture?
A . 1 out of 2
B . 2 out of 4
C . 3 out of 4
D . 7 out of 8

Answer: D

Explanation:

OceanStor Dorado high-end product can tolerate 7 out of 8 controllers failed, with SmartMatrix architecture. This is because the SmartMatrix architecture supports cross-engine active-active mode, which means each controller can access any LUN in the system. Therefore, even if only one controller is left, the system can still provide services.

Reference: Pre-release Announcement for Huawei Specialist Certification HCSA-Presales-Storage V4.0 (English Version)