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I am using a switch which is running the SM. And I have some recollection of not being able to split the modes on the ports as well, but I can't remember which card that was on now. I also couldn't get QDR working, and I'm not sure why the switch wouldn't do it. When I directly connect the cards...

I have one that I bought by accident that has SFP28 instead of QSFP+ (which I thought it had), or I'd give it a try for you.

Just basic IB. I had to disable the RDMA driver load to get it to stop complaining. Not that I imagine my spindle drives are fast enough for it to matter.

I finally got it working. I started moving cards around to see if the problem was specific to a certain card and it turned out to be. I'm now running with a ConnectX-2 card in the NAS and one of the working ConnectX-3 cards in ESXi. Alex, I'm not sure why you had problems with IB in ESXi, but...

I had the cards initially in Ethernet mode, but IIRC my switch didn't support it (IS5030.) I'll roll back to 6.5 and re-try. I think I only did an initial ping test and then tried again with 6.7, did another ping test, concluded it worked fine, and went along with 6.7 from there. Thanks.

ESXi 6.7 and driver 1.8.2.5 from Mellanox per Home Lab Gen IV – Part V Installing Mellanox HCAs with ESXi 6.5 Thanks.

I'm not even sure what scst is. I did go to the pains to install and configure it after seeing that error message, but that didn't fix the problem. # Automatically generated by SCST Configurator v3.3.0-pre1. TARGET_DRIVER copy_manager { TARGET copy_manager_tgt } TARGET_DRIVER iscsi {...

So, through much blood, sweat, and tears, I have my NAS and ESXi recognizing their new-ish ConnectX-3 cards in IB mode. I can send pings across the links and everyone looks happy. However, after adding my NFS storage to ESXi, I am now having another problem. Access to the NFS share from ESXi is...