HyperMetro uses the quorum server mode. If all replication links between two sites are down, which site survives and continues providing services>

Question

Options

• ANon-preferred site
• BThe site that wins the arbitration
• CPreferred site

• A
  8% (3)
• B
  19% (7)
• C
  73% (27)

Explanation

In HyperMetro's quorum server mode, when all replication links between two sites fail (a split-brain scenario), the preferred site is the pre-configured site designated to continue active I/O services - this is a deterministic design choice, not a runtime decision. Huawei deliberately makes the preferred site the survivor to guarantee predictable behavior and prevent data inconsistency from both sites writing simultaneously. Option B is incorrect because "winning arbitration" describes what the quorum server helps determine, but the outcome of that arbitration in this specific failure scenario is always the preferred site - the quorum server validates the preferred site's dominance, it doesn't dynamically pick an unpredictable winner. Option A is wrong because the non-preferred site is the one that pauses I/O and enters a standby state when the link is lost, protecting data integrity.

Memory tip: Think of the preferred site as the "designated driver" - no matter what happens on the road (link failure), the designated driver (preferred site) is always the one who takes control. The quorum server is just the witness confirming it.

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