[c-nsp] Pix blades - 6509

[Paul Stewart]

Thanks very much.. To everyone for the replies..

We actually have scheduled a maintenance window now for some other stuff
so are going to put them in place then... Better safe than sorry..

I've seen and been burned on the "stall" before... Added a 48 port
ethernet card one day and locked the whole switch up.... Whoops...;) 

Paul Stewart
Network Administrator
Nexicom Inc.
http://www.nexicom.net/ 

-----Original Message-----
From: Mike Butash [mailto:der.mikus at gmail.com] 
Sent: Monday, August 14, 2006 4:45 PM
To: Michael Kaegler
Cc: Paul Stewart; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Pix blades - 6509

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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