Re: HEA cards causing tcp retries

[DrFranken <midrange@xxxxxxxxxxxx>]

Well you have discovered the Achilles heal of the HEA. The card sits on 
the Primary System (GS) Bus so it cannot be hot swapped, added, or 
removed. Thus there is no option from the HMC to stop it or start it 
either. I hope someone knows a trick that I do not but I think the only 
way to reset that card is to power the system off and back on.

Now, that said, that simply should NOT be required. I would ABSOLUTELY 
pursue this with IBM SUpport. That card is the defacto Ethernet on all 
POWER6 and POWER7 servers and if there are issues with the card or 
drivers this needs to be addressed 'with quickness'.

  - Larry "DrFranken" Bolhuis.

Laine, Rogers wrote:
> We are using HEA along with the 5706 for important partitions using VIPA
> with load balancing.
>
>
>
> One of the HEA's are reporting lots of retransmissions causing
> performance problems.
>
>
>
> We took the HEA interface down and the performance problems clear up.
>
>
>
> So how do we go about resetting the HEA port or card?
>
>
>
> Is there a command on the OS or some thing on the HMC?
>
>
>
> TIA,
>
> Rogers