Which statements about the quorum network in the HyperMetro network are true? (Multiple choice)

Question

Options

• AThe quorum network supports the IP network.
• BThe quorum network supports the FC network.
• CThe quorum network requires that the latency be less than or equal to 50 ms.
• DThe quorum network requires that the link bandwidth be greater than or equal to 10 Mbit/s.

• A
  80% (36)
• B
  20% (9)

Explanation

In Huawei HyperMetro, the quorum network uses an IP-based connection to communicate with the quorum server (witness), which arbitrates split-brain scenarios - this confirms A is correct and rules out B, since Fibre Channel (FC) is not supported for the quorum link. The quorum network must meet strict performance thresholds to ensure reliable arbitration: latency must be ≤ 50 ms (C) and link bandwidth must be ≥ 10 Mbit/s (D), as a slow or congested quorum link could cause false failover decisions. Option B is wrong because the quorum function relies solely on IP networking, not FC - FC is used for data replication between the two storage sites, not quorum communication.

Memory tip: Think of the quorum server as a referee using a phone call (IP) - not a fibre cable. The referee must respond quickly (≤50 ms) over a decent line (≥10 Mbit/s), or the match can't be called fairly.

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