SG0-001 · Question #33
An administrator cannot get the initiator to discover an iSCSI target. The switch displays all green lights on the port but by moving the cable from one port on the switch to another, the initiator di
The correct answer is A. Incorrect VLAN setting on the switch. The issue, where iSCSI discovery fails on one switch port but succeeds on another on the same switch with physical link intact, most likely points to an incorrect logical configuration on the initial port.
Question
An administrator cannot get the initiator to discover an iSCSI target. The switch displays all green lights on the port but by moving the cable from one port on the switch to another, the initiator discovers the target. Which of the following is MOST likely the issue?
Options
- AIncorrect VLAN setting on the switch
- BSwitch port was shutdown
- CIncorrect configuration of the target NIC
- DIncorrect configuration of the initiator NIC
How the community answered
(34 responses)- A74% (25)
- B9% (3)
- C15% (5)
- D3% (1)
Why each option
The issue, where iSCSI discovery fails on one switch port but succeeds on another on the same switch with physical link intact, most likely points to an incorrect logical configuration on the initial port.
An incorrect VLAN setting on a specific switch port would prevent network communication for iSCSI discovery, even if the physical link is up (green lights). Moving the cable to a different port configured with the correct VLAN would then allow the initiator to discover the target, indicating the switch port's logical configuration was the problem.
If the switch port was shut down, there would be no link lights, contradicting the description of 'green lights'.
If the target NIC had an incorrect configuration, moving the cable to a different switch port would not resolve the issue, as the NIC's settings would remain unchanged.
If the initiator NIC had an incorrect configuration, moving the cable to a different switch port would not resolve the issue, as the NIC's settings would remain unchanged.
Concept tested: Troubleshooting iSCSI discovery and switch port configuration
Source: https://learn.microsoft.com/en-us/windows-server/storage/iscsi/iscsi-target-server
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