SG0-001 · Question #125
A server needs to be connected to a new SAN via iSCSI, but the system administrator is unable to see any of the LUNs from the server. Which of the following can the system administrator do NEXT to res
The correct answer is B. Update the iSCSI drivers on the server. If LUNs are not visible from a server connected via iSCSI, after verifying network configuration and connectivity, updating the iSCSI drivers on the server is the next logical troubleshooting step.
Question
A server needs to be connected to a new SAN via iSCSI, but the system administrator is unable to see any of the LUNs from the server. Which of the following can the system administrator do NEXT to resolve the issue, after verifying correct network configuration and basic network connectivity?
Options
- AChange the VSAN configuration
- BUpdate the iSCSI drivers on the server
- CUpdate the firmware on the switch
- DUpdate the firmware on all of the SAN drives
How the community answered
(39 responses)- A3% (1)
- B77% (30)
- C13% (5)
- D8% (3)
Why each option
If LUNs are not visible from a server connected via iSCSI, after verifying network configuration and connectivity, updating the iSCSI drivers on the server is the next logical troubleshooting step.
VSAN configuration is relevant for Fibre Channel SANs, not typically for iSCSI, which uses standard Ethernet.
iSCSI drivers on the server are essential for the operating system to properly communicate with and recognize iSCSI targets and LUNs. Outdated or missing drivers can prevent the server from discovering or connecting to the LUNs even if network connectivity is sound.
While switch firmware can affect network performance or stability, it is less likely to directly prevent LUN visibility if basic network connectivity is already verified.
Updating firmware on SAN drives is a maintenance task for drive stability and performance, not a direct fix for a server's inability to see LUNs through iSCSI.
Concept tested: iSCSI LUN discovery troubleshooting
Source: https://learn.microsoft.com/en-us/windows-server/storage/iscsi/iscsi-initiator-overview
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