[j-nsp] Fan Tray Failure in JM20

Jonas Frey (Probe Networks) jf at probe-networks.de
Tue Oct 11 13:51:06 EDT 2011


My guess is that this is some error on the i2c bus with the fans.
Try rebooting the whole unit to see if the error persists.

Its very unlikely that all 4 fans of a fantray fail totally.

If you have a spare unit try the fantrays in that one to see if it is
really related to the chassis.

-Jonas


Am Dienstag, den 11.10.2011, 09:59 -0700 schrieb Jon Helman:
> Keegan,
> 
>  
> 
> I took a look the M20 unit again.  
> 
>  
> 
> When I pull out a fan tray, you can here the fan tray cycle down and the
> fans are spinning at a high rate of speed.
> 
>  
> 
> I did this to all 3 front fan trays and I received the same result.  (Can't
> get to the back fan tray.)
> 
>  
> 
> This must be some type of mis-communications or reporting error.
> 
>  
> 
> Do I have to replace the entire chassis to fix this or shut down the unit to
> repair?
> 
>  
> 
> Thanks for your assistance.
> 
>  
> 
> Jon Helman
> 
>  
> 
> jon at ic2net.net
> 
>  
> 
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
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