System information

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Answer:
Question: 212
A customer has a c7000 enclosure that is fully populated with BL680c blades. Two months after the
initial installation, the rack initiates a thermal shutdown. When diagnosing the problem, you find
there is not enough space to get behind the unit. You pull all the units out but find no problems with
the chassis, blades, or their cooling systems. What is a potential cause for the thermal shutdown?
A. The rack is too close to the cold air outlet. The hot air area is too large, and the cooling system is
unable to recirculate the hot air effectively.
B. The blade enclosure's fan system is not strong enough to remove the thermal heat generated in a
fully populated enclosure.
C. The cooling system temperature in the data center is set too low This results in the enclosure
cooling fan system rotating at a lower RPM and not removing enough of the thermal heat.
D. There is insufficient air circulation causing hot air from the rear of rack to be fed back to the
equipment through the front of the rack.
Answer: D