Cisco UCS Fabric Interconnect Storage Port Configuration
An engineer deploys a Cisco UCS environment with the storage array directly attached to the Fabric Interconnects. The operations team mandates that the solution must not require the configuration of Fibre Channel zoning. Which configuration set meets these requirements?
Community Votes
50% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The core trap lies in distinguishing between FCoE (which still requires FC zoning) and Appliance ports (which use Ethernet-based protocols like iSCSI/NVMe-oF that do not require FC zoning).
This question evaluates the correct storage-facing port type for Cisco UCS Fabric Interconnects when direct-attached storage is used without Fibre Channel zoning. The analysis clarifies why specific port types are selected or rejected based on protocol requirements.
Many learners select 'FCoE storage port' because it sounds like a storage solution, but they overlook that FCoE operates within an FC domain and strictly requires zoning configuration.
Community Discussion (3 comments)
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Expert Analysis
Why the Answer Is Correct
The correct answer is D, Appliance port. In Cisco UCS, an appliance port allows the Fabric Interconnect to act as a host rather than a switch for specific traffic. When configured as an appliance port for storage, it typically uses Ethernet-based storage protocols such as iSCSI or NVMe over Fabrics. These protocols operate at Layer 3 or higher and do not rely on the Fibre Channel SAN infrastructure, thereby eliminating the need for Fibre Channel zoning.Why the Other Options Are Wrong
Option A, FCoE storage port, is incorrect because FCoE encapsulates Fibre Channel frames into Ethernet. While it runs over Ethernet cables, it still participates in the Fibre Channel fabric and requires FC zoning to be configured on the Fabric Interconnects. Option B, Storage port, is also incorrect; this mode turns the FI into an FC switch, which inherently requires zoning. Option C, Uplink port, is designed for connecting to upstream networks (like the core network) and is not intended for direct storage attachment in this context.Community Comment Notes
Community comments reveal significant confusion regarding this question. One user noted that "FCoE storage port" implies FCoE traffic but correctly pointed out that FIs must be in FC switching mode for FCoE, which necessitates zoning. Another comment highlighted that an appliance port uses Ethernet-based storage, aligning with the requirement to avoid FC zoning. The debate between options A and B in the votes reflects a misunderstanding of the zoning constraint provided in the prompt.Exam Strategy
Always read the negative constraints carefully. If the question says 'no zoning required,' immediately eliminate any option involving Fibre Channel switching or FCoE, as both mandate zoning. Look for Ethernet-based alternatives like iSCSI or appliance modes.
Frequently Asked Questions
Why does FCoE still require zoning?
FCoE encapsulates native Fibre Channel frames. Since it remains part of the FC fabric, standard FC zoning rules apply to define access permissions.
Can I use a Storage port if I disable zoning?
No. A Storage port configures the FI as an FC switch. Zoning is a fundamental mechanism of FC fabrics and cannot be disabled while using this port type.