[Users] interpreting ibdiagnet output

[Rupert Dance]

One last post on this thread is to announce that Mellanox recently updated
its Programmer User's Manual and while this is really focused to those who
are working directly with the verbs, I thought it would be good for everyone
to be aware of this resource. It includes all the new RDMA Verbs and RDMA CM
Verbs along with some new RDMA based code examples and other useful updates.


http://www.mellanox.com/related-docs/prod_software/RDMA_Aware_Programming_us
er_manual.pdf 

Enjoy

Rupert

-----Original Message-----
From: users-bounces at lists.openfabrics.org
[mailto:users-bounces at lists.openfabrics.org] On Behalf Of Narayan Desai
Sent: Monday, September 17, 2012 1:48 PM
To: users at lists.openfabrics.org
Subject: [Users] interpreting ibdiagnet output

Is there a canonical place that describes the errors reflected in ibdiagnet
output, and potential resolutions? I'm trying to fix up a qdr fabric, and am
seeing a combination of:
 - symbol errors (these are pretty clear; i'm assuming that cable
replacement is the solution in a lot of these cases)
 - ipoib speed errors (the group is at 10 gbit, but the network is capable
of 40; is this a cosmetic error, or will it cause actual performance
problems?)
 - pages of multicast errors (not really sure what to do here)
 - nagging issues with arping (which i suspect might have to do with the
previous multicast errors)

Various vendor docs describe how to run ibdiagnet, but don't do any more
than reproduce some output. I'm happy to RTFM, but a fair big of googling
has not revealed with FM to R. ;)  -nld
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