08-29-2018 08:07 AM
Dear Cisco Community,
I have an Cisco UCS Mini 5108 + FI6324 (UCS Manager 4.0.1) platform working well but since yesterday I receive major faults on the FANs while they are working well. Below the message that I receive only from the 4 FANs located in Fabric Interconnect A.
"Fan module 1-5 in chassis 1 operability: inoperable"
Finally the chassis FANs are making a lot of noise while the server room has a very good thermal (arroud 16°C).
Does anyone already had this issue.
Many thanks for your help.
Solved! Go to Solution.
08-29-2018 08:57 AM
Greetings.
It generally sounds like the I2C bus may be having some communications issues.
There were a few previous bugs where the fan control mechanism was prematurely timing out if the IOM didn't get an immediate fan response (or got a partial/incomplete response). This results in the Fans temporarily being marked inoperable, the fans go into safe mode (100% speed), and generic chassis thermal alerts.
TAC needs to take a look at the Chassis logs.
Thanks,
Kirk...
08-29-2018 08:57 AM
Greetings.
It generally sounds like the I2C bus may be having some communications issues.
There were a few previous bugs where the fan control mechanism was prematurely timing out if the IOM didn't get an immediate fan response (or got a partial/incomplete response). This results in the Fans temporarily being marked inoperable, the fans go into safe mode (100% speed), and generic chassis thermal alerts.
TAC needs to take a look at the Chassis logs.
Thanks,
Kirk...
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