PE 1850 and 2850 blue front LED dead ?

[Karl Katzke]

We've had the blue light die on just about all of our 1850s over the
past three years. We've replaced them all under warranty -- sometimes
multiple times. One server's gone through three. It's been such a big
problem (we have at least 15 1850s) that we've got the process for
powering down, pulling all the drives, backplanes, fans, other things
out and replacing the card, down to about five minutes.  

The problem with not replacing it is that sometimes the rest of the
card, which contains the power button and a few other doodads, will
croak. It doesn't seem to be so much a batch of bad LEDs as it is a
batch of bad cards.  

-K


---
Karl Katzke
Systems Analyst II
TAMU - DRGS






>>> "Robert von Bismarck" <robert.vonbismarck at vtx-telecom.ch> 5/15/2009
9:23 AM >>>

Hi all, 

  

This morning, during my daily trip to the datacenter, I saw two servers
did not have their blue LED on the front bezel. It wasn't amber or
flashing either, just off. 

One server was not doing anything critical so I power-cycled it, no
change. No indications in the logs either. 

Has anyone else seen this LED dying all of a sudden ?  

  

The LED on the back of the 2850 cable arm is still as bright as on its
first day. 

  

Should I start worrying, or is it only cosmetic and should I bugger my
boss for replacing these boxes ? 

  

Cheers, 

  

Robert von Bismarck
Senior Systems Engineer 

  


VTX SERVICES SA
Une société du groupe VTX Telecom
 
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