Hi Christoph, I wanted to test your patches, but I fail to see how I have to set it up. I do have a host with two RDMA HCAs connected to the target (Linux), for "normal dm-mpath" test I do nvme connect with the host traddr argument for both of the HCAs and get two nvme block devices which I can add to multipath. Using your patchset and doing the sanme double connect trick I get the same two block devices of cause. How do I connect using both paths? Thanks, Johannes -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850