Hi! Is it possible to mix OPAcards and Infininiband HCAs on the same server? In the faq https://www.ibm.com/support/knowledgecenter/en/STXKQY/gpfsclustersfaq.html#rdma They talk about RDMA : "RDMA is NOT supported on a node when both Mellanox HCAs and Intel Omni-Path HFIs are ENABLED for RDMA."
So do I understand right: When we do NOT enable the opa interface we can still enable IB ? The reason I ask is, that we have a gpfs cluster of 6 NSD Servers (wih access to storage) with opa interfaces which provide access to remote cluster also via OPA. A new cluster with HDR interfaces will be implemented soon They shell have access to the same filesystems When we add HDR interfaces to NSD servers and enable rdma on this network while disabling rdma on opa we would accept the worse performance via opa . We hope that this provides still better perf and less technical overhead than using routers Or am I totally wrong? Thank you very much and keep healthy! Best regards Walter Mit freundlichen Grüßen Walter Sklenka Technical Consultant EDV-Design Informationstechnologie GmbH Giefinggasse 6/1/2, A-1210 Wien Tel: +43 1 29 22 165-31 Fax: +43 1 29 22 165-90 E-Mail: skle...@edv-design.at<mailto:skle...@edv-design.at> Internet: www.edv-design.at<http://www.edv-design.at/>
_______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
