Because they both require a different distribution of OFED, which are mutual 
exclusive to install.
in theory if you deploy plain OFED it might work, but that will be hard to find 
somebody to support.


Sent from IBM Verse


   Aaron Knister --- Re: [gpfsug-discuss] EDR and omnipath --- 
    From:"Aaron Knister" 
<aaron.s.knis...@nasa.gov>To:gpfsug-discuss@spectrumscale.orgDate:Mon, Sep 19, 
2016 1:35 PMSubject:Re: [gpfsug-discuss] EDR and omnipath
  
    I must admit, I'm curious as to why one cannot use GPFS with IB and OPA 
both in RDMA mode. Granted, I know very little about OPA but if it just 
presents as another verbs device I wonder why it wouldn't "Just work" as long 
as GPFS is configured correctly.-AaronOn 9/19/16 3:11 AM, Vic Cornell wrote:> 
Bump>> I can see no reason why that wouldn't work. But it would be nice to a> 
have an official answer or evidence that it works.>> Vic>>>> On 15 Sep 2016, at 
5:49 pm, Brian Marshall <mimar...@vt.edu>> <mailto:mimar...@vt.edu>> wrote:>>>> 
All,>>>> I see in the GPFS FAQ A6.3 the statement below.  Is it possible to>> 
have GPFS do RDMA over EDR infiniband and non-RDMA communication over>> 
omnipath (IP over fabric) when each NSD server has an EDR card and a>> OPA card 
installed?>>>>>>>> RDMA is not supported on a node when both Mellanox HCAs and 
Intel>> Omni-Path HFIs are enabled for RDMA.>>>> 
_______________________________________________>> gpfsug-discuss mailing list>> 
gpfsug-discuss at spectrumscale.org <http://spectrumscale.org>>> 
http://gpfsug.org/mailman/listinfo/gpfsug-discuss>>>> 
_______________________________________________> gpfsug-discuss mailing list> 
gpfsug-discuss at spectrumscale.org> 
http://gpfsug.org/mailman/listinfo/gpfsug-discuss>-- Aaron KnisterNASA Center 
for Climate Simulation (Code 606.2)Goddard Space Flight Center(301) 
286-2776_______________________________________________gpfsug-discuss mailing 
listgpfsug-discuss at 
spectrumscale.orghttp://gpfsug.org/mailman/listinfo/gpfsug-discuss
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