[c-nsp] Pix blades - 6509

[Mike Butash]

We stopped OIR'ing anything during the day after a brand new RMA blade 
fried our core from what appeared to be a blade that was dropped on the 
backplane connector out of box.  Good measure would be to try it in a 
lab chassis first, or at least a non-critical piece of infrastructure.

The other thing to watch is the bus-stall pins, which will temporarily 
cause a bus stall on the fabric during the OIR on the 6500.  We found 
out (the hard way obviously) there are pins in the backplane connector 
that sit further out than the others that if you push it in far enough, 
but not entirely enough, it will cause an indefinite hang that will 
eventually just cause the box to reload entirely if it persists long 
enough.  Supposedly they were fixing this in a different rev of chassis 
as it proved more problematic than it was worth.  Not sure if this made 
it into the "E" chassis' or not, but it is a real concern to NOT be so 
gentile/slow with it upon insertion.

-mb


Michael Kaegler wrote:
> I do it all the time and have never had a problem (I've got about 16 
> 6500s), so I'd go ahead without hesitation. That said, its 
> theoretically possible for something to go horribly awry... but I've 
> never heard of an instance of it causing a problem.
> -porkchop
> 
> 
> At 8:56 AM -0400 8/14/06, Paul Stewart wrote:
>> Hi there...
>>
>> We just got a pair of PIX blades in... I'd like to install them into our
>> production 6509's .. Is that safe to do on the fly or do I need to wait
>> until a maintenance window? ;)
>>
>> Paul Stewart
>> Network Administrator
>> Nexicom Inc.
>> http://www.nexicom.net/
>>
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