SG0-001 Question #157: Real Exam Question with Answer & Explanation

The correct answer is A. Cable connection failure C. GBIC/SFP failure. When a host suddenly loses access to multiple Fibre Channel SAN volumes, the first investigation steps should focus on physical layer components that facilitate connectivity. Cable connection failures and GBIC/SFP failures are common physical causes for such widespread access los

Storage Connectivity

Question

Given a scenario in which a host on a Fibre Channel SAN suddenly loses access to multiple SAN storage volumes, an administrator should FIRST investigate which of the following? (Select TWO).

Options

ACable connection failure
BVLAN failure
CGBIC/SFP failure
DNIC failure
EName Server failure

Explanation

When a host suddenly loses access to multiple Fibre Channel SAN volumes, the first investigation steps should focus on physical layer components that facilitate connectivity. Cable connection failures and GBIC/SFP failures are common physical causes for such widespread access loss.

Common mistakes.

B. Fibre Channel does not natively use VLANs for segmentation; VLANs are an Ethernet technology and are not relevant to a traditional Fibre Channel SAN.
D. A NIC (Network Interface Card) is used for Ethernet-based IP networking, not for traditional Fibre Channel SAN connectivity which uses a Host Bus Adapter (HBA).
E. A Name Server failure might impact new device logins or discovery but is less likely to cause a sudden, complete loss of access to existing, connected volumes than a physical connectivity issue.

Concept tested. Fibre Channel SAN physical troubleshooting

Reference. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/troubleshooting/trgd/MDS_SAN_TRBLSHOOTING_V62.html

Topics

#Fibre Channel troubleshooting#SAN connectivity#Cable failure#SFP failure

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