04-17-2012 06:55 AM - edited 03-07-2019 06:10 AM
On the Device Manager dashboard for a 3560X-24T-S there is a message in teh System Health section that states 'FAN FAULTY', with slashed red circle over the fan icon.
Upon hovring over graphic, I see the message:
FAN 1 is OK
FAN 2 is OK
FAN 3 is OK
FAN 4 is FAULTY
I beileve the accessible fans are fan 1 and 2, so I'm unsure what FAN 4 is,
Thanks,
John
04-17-2012 08:17 AM
Hi Johnb,
Sometimes a power supply will have in built fans. Check PS2. If you have a redundant power supply then one of the power supplies has a faulty fan and you will need to replace the faulty power supply.
Thanks
Dan
04-17-2012 10:03 AM
Hello, as Daniel noticed it should correspond to the internal FAN of power supply 2.
I think your tool is reporting FAN-3 and FAN-4 instead of FAN PS-1 and FAN PS-2. If you have an log in access to the switch, you can check directly it by entering =>
3560-X # show env fan
FAN 1 is OK
FAN 2 is OK
FAN PS-1 is OK
FAN PS-2 is ?
3750X rear view (but FAN 1 & 2 and PS 1 & 2 look similar for 3560X)
If the alarm is confirmed the appropiate actions need to be done :-)
Best regards.
Karim
04-17-2012 10:38 AM
Thank you for the replies:
I ran the cli as suggested and this is what came back:
FAN 1 is OK
FAN 2 is OK
FAN PS-1 is OK
FAN PS-2 is NOT PRESENT
This makes perfect sense as I am not running a redundant power supply. What doesn't make sense is the 'FAN 4 is FAULTY which I see on the dashboard of the Device Manager.
Thanks,
John
04-17-2012 11:39 AM
Hi John,
So I think you are just hitting comsetic bug
CSCtn62121 - Cat3560X Device Manager shows Fan FAULTY if Fan PS is NOT PRESENT
===================================================
3560 switch's Device Manager shows Fan FAULTY on the Dashbord as follows;
FAN1 is OK
FAN2 is OK
FAN3 is OK
FAN4 is FAULTY
Conditions: FAN PS is not put in the chassis
#sh env all
FAN 1 is OK
FAN 2 is OK
FAN PS-1 is OK
FAN PS-2 is NOT PRESENT
Workaround: A cosmetic issue and there is no workaround
First Found in: (1)
12.2(55)SE
===================================================
Regards.
Karim
04-17-2012 07:37 PM
I have the same issue with my 3750x switches. All have 1 power supply and all show fan 4 faulty but only in the web interface. This is nothing to be concerned with.
Sent from Cisco Technical Support iPhone App
04-18-2012 11:26 AM
Hi;
Yes for the 3750-X the same issue is referenced under bug CSCtl42016
First Found in 12.2(55)SE - Workaround: A cosmetic issue and there is no workaround.
Regards.
Karim
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