SG0-001 · Question #341
A system administrator has completed the configuration of the fiber channel switch. All switch ports have been configured the same way, since they connect similar server hardware with similar capabili
The correct answer is C. Bad SFP. A server failed to see its storage when connected to one Fibre Channel switch port but worked when moved to another port on the same switch, indicating a hardware issue specific to the original port.
Question
A system administrator has completed the configuration of the fiber channel switch. All switch ports have been configured the same way, since they connect similar server hardware with similar capabilities and configuration. One of the servers is unable to see its storage. The system administrator moves the server's current connection to a different and unused fiber channel port and the server's storage is now available. Which of the following is the MOST likely reason for the server not being able to see its storage in its original configuration?
Options
- ABad MAU
- BBad fiber cable
- CBad SFP
- DBad NIC
How the community answered
(25 responses)- A4% (1)
- B4% (1)
- C80% (20)
- D12% (3)
Why each option
A server failed to see its storage when connected to one Fibre Channel switch port but worked when moved to another port on the same switch, indicating a hardware issue specific to the original port.
A MAU (Media Attachment Unit) is an outdated component associated with early Ethernet standards like 10BASE5 and is not relevant to modern Fibre Channel switch technology.
If the fiber cable was bad, moving the same cable to a different port would likely not resolve the connectivity issue, which contradicts the scenario described.
An SFP (Small Form-Factor Pluggable) module is a transceiver inserted into a network switch port to enable optical fiber connectivity. If the SFP module in the original Fibre Channel switch port was faulty, it would prevent the server from establishing a link and accessing its storage, even if the fiber cable and server NIC were functional. Moving the connection to a port with a working SFP module would then restore connectivity.
If the server's NIC (Network Interface Card) was faulty, the server would be unable to connect to storage regardless of which Fibre Channel switch port it was connected to.
Concept tested: Troubleshooting Fibre Channel SFP module failures
Source: https://www.cisco.com/c/en/us/support/docs/interfaces-modules/gigabit-interface-converters-gics/17392-sfp-gbi-troubleshoot.html
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