300-615 · Question #247
A maintenance operation on power rail A caused a reboot of the servers in a Cisco UCS B-Series chassis. The Cisco UCS system has these attributes: - The system is equipped with four PSUs. - N+1 mode…
The correct answer is B. Configure nonredundant mode with PSU1 and 3 on A and PSU2 and 4 on ? In the current setup, PSU 1 and 2 are connected to rail A, and PSU 3 and 4 are connected to rail B. When rail A goes down, both PSU 1 and 2 are lost, leaving only the power from rail B (PSU 3 and 4), which might not be sufficient depending on the load, causing the servers to By…
Question
A maintenance operation on power rail A caused a reboot of the servers in a Cisco UCS B-Series chassis. The Cisco UCS system has these attributes:
- The system is equipped with four PSUs.
- N+1 mode is used.
- PSU 1 and 2 are connected to rail A.
- PSU 3 and 4 are connected to rail B.
Which action prevents server reboot when rail A goes down?
Options
- AUse GRID mode do not change physical plugs.
- BConfigure nonredundant mode with PSU1 and 3 on A and PSU2 and 4 on ?
- CUse N+2 mode; do not change physical plugs.
- DConfigure N+1 mode with PSU1 and 2 on ?and PSU3 and 4 on A.
How the community answered
(40 responses)- A5% (2)
- B78% (31)
- C5% (2)
- D13% (5)
Explanation
In the current setup, PSU 1 and 2 are connected to rail A, and PSU 3 and 4 are connected to rail B. When rail A goes down, both PSU 1 and 2 are lost, leaving only the power from rail B (PSU 3 and 4), which might not be sufficient depending on the load, causing the servers to By configuring nonredundant mode with PSU1 and PSU3 on rail A and PSU2 and PSU4 on rail B, you distribute the power more evenly across the power rails. This ensures that both power rails provide power to the system, preventing a complete power failure in the event of one rail
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