[f-nsp] debugging restarts

[Tomasz Szewczyk]

Hi,

I'm not sure if it is available on FI, but you can try to make sh tech 
end log the output. A part of this output is "dm save" results which can 
give overview of warm restart cause. This command exists on XMR/MLX and 
is useful in such cases. If you have this command and "dm save" or "sh 
tech" shows not correct date:

Created on     : 05:00:19 GMT+01 Tue Jul 01 2008

You can try "dm clear" - and wait for another restart. The crash dump is 
not overwritten if you don't clear it.

Tomek

On
Joseph Hardeman pisze:
> Hi Jeroen,
>
> We have an external syslog server, but nothing shows up except the 
> Warm restart.  I need to take a put a console cable and hope something 
> shows up screen before crash.
>
> Thanks
>
> Joe
>
> Jeroen Wunnink wrote:
>> I've had occasional reboots on BI (Ironcore and Jetcore) when using 
>> aggregation options combined with BGP.
>>
>> But try setting up an external syslog server and see if anything 
>> strange pops up right before the reboot.
>>
>> Joseph Hardeman wrote:
>>> Hi Aaron,
>>>
>>> Thank you for the info.  And that is my gut feeling that its the 
>>> management card, but I have been instructed to find a "definitive" 
>>> reason for the reboots.
>>> So if someone knows how I can pull any crash info from the fi and 
>>> how to analyze it that would be great.
>>> Joe
>>>
>>> Aaron Wendel wrote:
>>>> I had this exact issue on a BI about a month ago.  It got worse and 
>>>> worse
>>>> until it started rebooting every couple minutes.  No reason was 
>>>> ever found.
>>>> I replaced the management card and it hasn't restarted since.
>>>>
>>>> Aaron
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: foundry-nsp-bounces at puck.nether.net
>>>> [mailto:foundry-nsp-bounces at puck.nether.net] On Behalf Of Joseph 
>>>> Hardeman
>>>> Sent: Thursday, July 09, 2009 12:23 PM
>>>> To: foundry-nsp at puck.nether.net
>>>> Subject: [f-nsp] debugging restarts
>>>>
>>>> Hi Everyone,
>>>>
>>>> I have another fi that I found has started to restart on its own.  
>>>> I am getting "Warm start" in the logs that alerted me.  I did a 
>>>> show tech-support but I did not see a reason for the restarts.  I 
>>>> have enabled "debug all" and set "debug destination log" until I 
>>>> can get a console cable on it and redirect to console.
>>>>
>>>> All power supplies and fans show ok.
>>>>
>>>> Any suggestions on what to check to see why the system is 
>>>> restarting?  I am not seeing anything in the logs or sh commands 
>>>> that is giving me an idea on what is causing the restarts.
>>>>
>>>> Thanks
>>>>
>>>> Joe
>>>> _______________________________________________
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>>>> foundry-nsp at puck.nether.net
>>>> http://puck.nether.net/mailman/listinfo/foundry-nsp
>>>>
>>>>
>>>>   
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-- 
Tomasz Szewczyk
Poznan Supercomputing and Networking Center
e-mail: tomeks at man.poznan.pl
tel: +48 61 8582040
fax: +48 61 8525954