When delivering a flash storage project, Huawei engineers introduced the arbitration mechanism of HyperMetro to the customer. Which of the following statements is false about the arbitration modes?
Correct Answer:
C
The HyperMetro feature in Huawei storage systems, such as OceanStor Dorado, provides active-active data access with arbitration mechanisms to handle site failures. The *HCIP-Storage V5.5 Training Material (Module 4: Storage Design and Implementation)* details HyperMetro arbitration modes:
- Option A: True. The material states: ''In the absence of a quorum server, HyperMetro operates in static priority mode, where the preferred site is designated to win arbitration and continue services during a failure.''
- Option B: True. The material explains: ''In static priority mode, if the preferred site fails, the non-preferred site does not automatically take over to avoid split-brain scenarios. Services stop, and manual intervention is required to forcibly start services on the non-preferred site.''
- Option C: False. The material clarifies: ''In quorum server mode, the quorum server can be deployed on physical machines or virtual machines, provided it meets the performance and network requirements.'' This makes the statement that it can only be deployed on physical machines incorrect.
- Option D: True. The material confirms: ''In quorum server mode, if the link between storage systems fails, both systems send arbitration requests to the quorum server to determine which site continues providing services.''
Thus, option C is false.
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.5: HyperMetro Configuration and Arbitration Mechanisms*, Huawei Technologies Co., Ltd.
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