350-601 Compute Practice Question
A UCS C-Series rack server with a boot from SAN policy fails to discover the LUN during POST. The HBA is correctly zoned with the storage array. Which step should be taken to troubleshoot the issue?
⚠ Common exam trap
Cisco often tests the distinction between UCS B-Series (managed via UCS Manager with service profiles) and C-Series (standalone with Cisco IMC) to trap candidates who apply B-Series troubleshooting steps to a C-Series scenario.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Review the SAN boot target configuration in Cisco IMC
When a UCS C-Series rack server with a boot-from-SAN policy fails to discover the LUN during POST, the most direct troubleshooting step is to review the SAN boot target configuration in Cisco IMC. The HBA is already correctly zoned, so the issue likely lies in the boot target parameters (e.g., WWPN, LUN ID, or target name) configured in the IMC's SAN boot settings, which the HBA uses during the BIOS-level boot process. Verifying these settings ensures the HBA can properly address and log into the storage target.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Verify VSAN membership on the fabric interconnect
Why it's wrong here
VSANs are for B-Series blade chassis, not C-Series rack servers
- ✗
Update the server firmware to the latest version
Why it's wrong here
Firmware upgrade is not a troubleshooting step for LUN discovery
- ✓
Review the SAN boot target configuration in Cisco IMC
Why this is correct
CIMC stores the SAN boot settings for C-Series servers
- ✗
Check the service profile association in UCS Manager
Why it's wrong here
C-Series servers are managed independently, not through service profiles
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