I recently hit this and didn’t find anything rapidly on google. The configuration I was using was two Cisco MDS 9148 switches and two 6248 Cisco UCS fabric interconnects. A couple things to check if you’re getting this message:
Suspended due to NPIV is not enabled in upstream switch
And once NPIV is enabled, if the switchport goes into status:
fc port failed reason initializing
Try the following.
Thing 1: Make sure that NPIV is appropriately enabled on the switch.
Thing 2: Make sure you have the VSANs configured the same in both UCS and the MDS. In this case, the storage admin I was working with created a new VSAN, but I left the UCS at the default VSAN 1.
This is assuming you’re using end host mode. Hope this helps!