[gpfsug-discuss] IBM ESS: Error on ConnectX-4 card, "Power budget Exceeded"

[Jonathan Buzzard]

On Fri, 2019-03-29 at 12:22 +0000, Oesterlin, Robert wrote:
> Anyone come across this? Or know what I might look at to fix it?  I
> did find a reference online for ConnectX-5 cards, but nothing for X-
> 4. The SFP (Cisco SFP-10G-SR) is certified by Mellanox to work.
>  
> [    3.807332] mlx5_core 0000:01:00.1: Port module event[error]:
> module 1, Cable error, Power budget exceeded
> [    7.454895] mlx5_core 0002:01:00.1: Port module event[error]:
> module 1, Cable error, Power budget exceeded
> [ 1585.090315] mlx5_core 0002:01:00.0: Port module event[error]:
> module 0, Cable error, Power budget exceeded
> [ 1610.688397] mlx5_core 0000:01:00.0: Port module event[error]:
> module 0, Cable error, Power budget exceeded
>  

My understanding is that the ConnectX-4 cards where QSFP28 not SFP?
Well at least ours are and all the documentation says the same.
Presumably you have some sort of adaptor to make that work, could that
be the issue?

JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG