Cisco Troubleshooting Cisco Data Center Infrastructure (300-615 DCIT) v1.1 300-615 Question # 40 Topic 5 Discussion
300-615 Exam Topic 5 Question 40 Discussion:
Question #: 40
Topic #: 5
Refer to the exhibit.
A Cisco UCS B-Series Blade Server is configured to boot from a shared storage via an iSCSI network. When a service profile is associated with the blade, the blade fails to attach the LUN. Which action resolves the issue?
A.
Place VLAN 0 on the interface that connects to the storage
B.
Register the blade as an initiator on the storage array
C.
Implement a Layer 3 connection between the blade and the storage
D.
Establish a Layer 2 connection between the blade and the storage
The correct answer is Place VLAN 0 on the interface that connects to the storage. Cisco MDS and Nexus SAN troubleshooting is driven by fabric state: the host and target must be in the correct VSAN, must complete FLOGI/PLOGI where applicable, and must be permitted by active zoning, fcdomain, FSPF, NPV/NPIV, or port-security policy. This question focuses on UCS, service profile, iSCSI, so the selected action fixes the dependency that prevents the initiator, target, or inter-switch link from becoming usable. Cisco documentation emphasizes checking VSAN membership, active zonesets, correct port mode, fabric binding, device-alias consistency, and the relevant FC databases before changing unrelated server settings. The distractors either target a different database, use the wrong port role, or would not cause the observed Fibre Channel state to change. After the fix, the engineer should confirm the interface state, FLOGI database, name-server entries, zoneset activation, and successful initiator-to-target reachability with tools such as fcping or fabric show commands.
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