A customer will be implementing a Hitachi Unified Storage File Module in a switch-less two-node cluster. What needs to be used for the cluster interconnect?

Question

Options

• ATwo10Gbps Ethernet connections with LC connectors
• BTwo10Gbps Ethernet connections with XFP connectors
• CTwo1Gbps Ethernet connections with RJ-45 connectors
• DTwo8Gbps FC connections with LC connectors

• A
  5% (2)
• B
  89% (33)
• C
  3% (1)
• D
  3% (1)

Explanation

Option B is correct because the Hitachi Unified Storage (HUS) File Module specifically requires 10Gbps Ethernet using XFP (10 Gigabit Small Form Factor Pluggable) transceivers for the cluster interconnect in a switch-less two-node configuration - this is a hardware specification dictated by the ports built into the HUS File Module itself.

Why the distractors are wrong:

• A is wrong because while LC connectors are common fiber connectors, the HUS File Module's cluster interconnect ports use XFP transceivers, not a generic LC-terminated 10GbE interface - the transceiver type matters here.
• C is wrong because 1Gbps (RJ-45/copper) is insufficient bandwidth for the cluster interconnect; the HUS File Module requires 10Gbps for this link.
• D is wrong because Fibre Channel (FC) is a storage protocol used for data access, not for the cluster interconnect heartbeat/communication link, which uses Ethernet.

Memory tip: Think "XFP for the cluster interXconnect" - the X in XFP represents 10 (Roman numeral), matching the required 10Gbps speed, and it's the specific transceiver form factor Hitachi specifies for this role. If you see any answer combining FC or 1Gbps with "cluster interconnect," eliminate it immediately.

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