02-14-2012 11:10 AM
I have an older Silkworm 3850 in my office for lab and testing purposes.
Because of the temperatur in the testing rack is very low the device could turn off the fans. The problem is that all four fans are running too loud.
Warrenty is no problem - the device is too old. I can´t pull the fans off the mainboard of the switch because the switch shuts down with the message that all fans has failed and there could be a possible overheating then.
How can I configure the fc switch not to shutdown? Or how can I disable the fan warning or change the fanspeed to 0rpm / off? The switch controls the fans via software - maybe this is possible.
02-14-2012 11:50 AM
But it is not working as expected. The switch still shuts down.
012/02/14-19:37:40, , 129664, FFDC, CRITICAL, DS_16B3, Fan faulty warning time expired. System preparing for shutdown...
2012/02/14-19:40:54, , 129675,, ERROR, DS_16B3, Fan 1 faulted, speed (0 RPM) below threshold.
2012/02/14-19:41:02, , 129676,, ERROR, DS_16B3, Fan 2 faulted, speed (0 RPM) below threshold.
2012/02/14-19:41:04, , 129677,, ERROR, DS_16B3, Fan 3 faulted, speed (0 RPM) below threshold.
2012/02/14-19:41:07, , 129678,, ERROR, DS_16B3, Fan 4 faulted, speed (0 RPM) below threshold.
Configruation at the moment:
The current overall switch status policy parameters:
PowerSupplies 2 1
Temperatures 0 0
Fans 0 0
Flash 0 1
MarginalPorts 2 1
FaultyPorts 1 0
MissingSFPs 0 0
02-15-2012 09:36 AM
One little update:
If I unplug all four fans the system shuts down after a while. In the GUI I can see that all fans are faulty but in summary the Fan status is marked as green "ok".
Is there maybe a configfile (with root access) where I can edit the threshold for the fans or disable the fan monitoring?