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New Member

How do I find out how many fans are there in a router with the help of CLI? Specifically cisco3845 with ios c3845-spservicesk9-mz.124-3b.bin

       I have an issue where show env o/p is as below, I suspect the FAN 1 which shows failed is not present in router, how do i find out with the help of CLI , how many fans are present in router.

#show environment all

SYS PS1 is present.

       Fan status: Normal

       Input Voltage status: Normal

       DC Output Voltage status: Normal

       Type: AC

       Thermal status: Normal

SYS PS2 is present.

       Fan status: Normal

       Input Voltage status: Normal

       DC Output Voltage status: Normal

       Type: AC

       Thermal status: Normal

AUX(-48V) PS1 is absent.

AUX(-48V) PS2 is absent.

Fan 1 Failed

Fan 2 Normal

Fan 3 Normal

Fan Speed is Normal

Alert settings:

Intake temperature warning: Enabled, Threshold: 55 Core temperature warning: Enabled, Threshold: 70 (CPU: 90)

Board Temperature: Normal

Internal-ambient temperature = 28, Normal CPU temperature = 41, Normal Intake temperature = 22, Normal Backplane temperature = 19, Normal

Voltage 1(3300) is Normal, Current voltage = 3284 mV Voltage 2(5150) is Normal, Current voltage = 5153 mV Voltage 3(2500) is Normal, Current voltage = 2525 mV Voltage 4(1200) is Normal, Current voltage = 1203 mV

Nominal frequency

1 ACCEPTED SOLUTION

Accepted Solutions

Re: How do I find out how many fans are there in a router with t

This means that FAN1 has failed.

Fan 1 Failed

Feb 14 07:31:01.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

Feb 14 07:31:21.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

Feb 14 07:31:41.995 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

Feb 14 07:32:01.994 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported. Feb 14 07:31:01.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:31:21.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:31:41.995 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:32:01.994 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

13 REPLIES
Purple

How do I find out how many fans are there in a router with the h

Hi,

Why would it report it as failed if it wasn't present ?

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
New Member

How do I find out how many fans are there in a router with the h

Hi Alain,

I have seen in some devices when fan is not present it gives o/p as failed? and when i physically checked it was not there.

If at we consider its there inside, how do we can find out its presence, does failed means its presence there?

Regards,

Arun

Purple

How do I find out how many fans are there in a router with the h

Hi,

ok didn't know about this fact.

I don't see how you can do apart opening the device and verifying.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
New Member

How do I find out how many fans are there in a router with the h

Hi,

To make it more specific in SDM was getting alert as FAN 3 failed, where as FAN 3 was not there in the device and that was switch, and I do not recollect the command o/p where it showed me absent or something like that. So what my q is is there a CLI command which shows the number of FANS present in chasis. Simple rite?

Purple

How do I find out how many fans are there in a router with the h

Hi,

yes simple indeed but aprt from the command you used I'm not aware of any other, maybe some more knowledgeable people will tell you if there is such a command then.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
New Member

How do I find out how many fans are there in a router with the h

Hi,

My second point is does failed confirms the presence of the FAN ?

Purple

How do I find out how many fans are there in a router with the h

Hi,

I would have thought so but you tell that it may not be the case.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
New Member

How do I find out how many fans are there in a router with the h

Hi,

I would have provided you the proof of the it, but unfortunately the snapshot captured machine got crashed and I could not recover the data. But I am very much sure that I have seen it CLI mode where it showed me FAN is not present still i got the error log of failed FAN.

Re: How do I find out how many fans are there in a router with t

Arun,

Do you show any errors for the fan under 'show logging' ?

      

Also, "fan failed' should indicate the failure of a fan. But usually you should see errors under 'show logging'

New Member

How do I find out how many fans are there in a router with the h

yes it does as follows

Feb 14 07:31:01.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:31:21.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:31:41.995 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:32:01.994 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

Again My second point is whether failed means fan is present or absent ?

Re: How do I find out how many fans are there in a router with t

This means that FAN1 has failed.

Fan 1 Failed

Feb 14 07:31:01.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

Feb 14 07:31:21.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

Feb 14 07:31:41.995 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

Feb 14 07:32:01.994 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported. Feb 14 07:31:01.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:31:21.996 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:31:41.995 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.
Feb 14 07:32:01.994 GMT: %FAN-3-FAN_FAILED: Fan 1 had a rotation error reported.

New Member

How do I find out how many fans are there in a router with the h

Thanks John,

New Member

Hi All, In cisco 3845 router,

Hi All,

 

In cisco 3845 router, we are using, in that totally 3 fan, but fan 1 is failed. how to find the serial no of the fan...By using the cli...

 

thank and Regards 

Natarajan

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