[c-nsp] GSR 12008 (%ENV_MON-2-FAN)

[e ninja]

Chris,

What changed?

The CSC usually bumps up power to other fans when a fan has failed or the
cooling system has been compromised or the room gets too hot etc. So, check
the fans, the filters, ensure room temp and cooling is in order, ensure
airflow through the chasis hasn't been compromised by an uncovered linecard
slot for instance and a sh env all, sh diag and logs would help.

/eninja


On Tue, Mar 18, 2008 at 4:29 AM, Chris Lane <clane1875 at gmail.com> wrote:

> I am getting error
> %ENV_MON-2-FAN: Fan array has reached CRITICAL level.
>
>
> I did a search and found this on Ciscos website.
> ------------------------------------------------------------------------
> %ENV_MON-2-FAN : Fan array has reached [chars] level.
>
> Explanation    There might be a hardware problem with the fan array. If
> the
> error condition continues for two minutes, the router shuts down
> automatically to prevent damage to router components.
> Recommended Action    If the system shuts down, replace the fan tray. Copy
> the error message exactly as it appears on the console or in the system
> log,
> contact your Cisco technical support representative, and provide the
> representative with the gathered information.
>
> ---------------------------------------------------------------------------
> I have just removed CSC cards and fan tray. Same symptoms.
> I also must mention the alarm state is short unlike the 2minutes stated
> above.
> Mar 18 05:26:18.257 EST: %ENV_MON-2-FAN: Fan array has reached CRITICAL
> level.
> Mar 18 05:26:21.066 EST: %ENV_MON-2-FAN: Fan array has reached CRITICAL
> level.
>
> Also i checked:
> cr.nyc1.ny#sh controllers fia
> Fabric configuration: 2.4Gbps bandwidth, redundant fabric
> Master Scheduler: Slot 17     Backup Scheduler: Slot 16
> >From Fabric FIA Errors
> -----------------------
> redund fifo parity 0          redund overflow 0          cell drops
> 0
> crc32 lkup parity  0          cell parity     0          crc32
> 0
> Switch cards present    0x001F    Slots  16 17 18 19 20
> Switch cards monitored  0x001F    Slots  16 17 18 19 20
> Slot:     16         17         18         19         20
> Name:    csc0       csc1       sfc0       sfc1       sfc2
>       --------   --------   --------   --------   --------
> los    0          0          0          0          0
> state  Off        Off        Off        Off        Off
> crc16  0          0          0          0          0
>
> To Fabric FIA Errors
> -----------------------
> sca not pres 0          req error     0          uni fifo overflow 0
>
> grant parity 0          multi req     0          uni fifo undrflow 0
>
> cntrl parity 0          uni req       0          crc32 lkup parity 0
>
> multi fifo   0          empty dst req 0          handshake error   0
>
> cell parity  0
>
> As you can see no errors are incrementing on the SFC or CSC.
>
> I am stumped.
>
> Any suggestions would be greatly appreciated.
>
> --
> //CL
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