[ofa-general] RE: OpenSM detection of duplicated GUIDs on loopback

Eitan Zahavi eitan at mellanox.co.il
Sun Jul 29 02:00:33 PDT 2007


> On 14:27 Fri 27 Jul     , Eitan Zahavi wrote:
> > The problem I have with back-to-back plug is that it is a 
> fatal case 
> > if found in a case where there was no use of this plug.
> > So we will  need some sort of user input if it is OK or not.
> 
> Ok, and let's add cl_qmap_count() check there.
Not following you.
> 
> > The case of moving a port in the middle of a sweep can be easily 
> > detected if instead of reporting an error a second check of the 
> > original DR where the same GUID was found is performed...
> 
> Do you mean to resend NodeInfo request to the original location?
> Assuming so, I guess it should be instead of second heavy 
> sweep, and it is a good idea. The only small downside of this 
> I can see is potential timeouts (and discovery slowdown). But 
> anyway it is much better then fatal error. Thanks!

So we are inline with this one .
Instead of changing the order of things we could generate list of DR's
that are to be re-scanned
 during drop-mgr and then abort if really dulicates.

> 
> Sasha
> 



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