Sorry to say we currently do not have support for RDMA and we only support IP over IB.
We do not have the Mellanox in our labs though others have reported it to work by switching to latest kernel verison on our Boot Options from Console Tools. They had the MHGS18-XTC series but no tests results on performences.

Please use link below to find a sales person in your region to contact our sales personal or email pre-sales@open-e.com so we can provide you a contact person.

http://www.open-e.com/data_storage_s...bgr=sales_team