HAT-420 · Question #98
You are connecting a Hitachi Unified Storage system to a FC SAN. Which topology setting should you select?
The correct answer is C. Point-to-Point. Connecting a Hitachi Unified Storage (HUS) system to a FC SAN requires Point-to-Point because each physical link between a storage port and an FC switch port is a dedicated, one-to-one connection - even within a larger switched fabric. Hitachi's FC port configuration reflects…
Question
You are connecting a Hitachi Unified Storage system to a FC SAN. Which topology setting should you select?
Options
- ALoop
- BFabric
- CPoint-to-Point
- DFabric Point-to-Point
How the community answered
(25 responses)- A8% (2)
- C88% (22)
- D4% (1)
Explanation
Connecting a Hitachi Unified Storage (HUS) system to a FC SAN requires Point-to-Point because each physical link between a storage port and an FC switch port is a dedicated, one-to-one connection - even within a larger switched fabric. Hitachi's FC port configuration reflects this physical reality rather than the broader network topology name.
Why the distractors are wrong:
- A (Loop): FC-AL (Arbitrated Loop) is a legacy shared-bandwidth topology where devices share a single ring; it's not appropriate for modern SAN HBAs or HUS systems.
- B (Fabric): While the SAN uses a switched fabric, "Fabric" is not the correct HUS port topology setting - Hitachi uses Point-to-Point for switch-connected ports regardless of whether there's a fabric.
- D (Fabric Point-to-Point): This is a fabricated distractor combining two real terms; it is not a valid topology option in Hitachi storage configuration menus.
Memory tip: Think "one cable, one port, one switch port = Point-to-Point." No matter how large the SAN fabric is, each individual storage port connects to exactly one switch port - making the physical topology always point-to-point from the HUS's perspective.
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