Without posting a myriad of logs we have looked it, basically the issue is our Qlogic FC cards show "offline" after a firmware/driver/esxi update.
Running Dell hardware, with ESXi v7 U3s. We upgraded all Dell firmware following the Dell/ESXi catalog which at this time included iDrac/BIOS/Marvel firmware. We used lifecycle to patch the hypervisor to U3v and the Dell add-on from A25 to A26.
All ran successfully and following this the Qlogic cards all show offline. We could not pinpoint much in the logs other than the lifecycle mentioned vmkapi several times having to upgrade or something, I do not remember.
We reverted the Qlogic and BIOS firmware on the box, and booted the hypervisor Shift-R to recover the last one, which seemed successful. Still offline.
I am perplexed why a rollback would still not be able to get our FC cards online. Did a pci map change or something? The cards were not re-enumated as they kept their names they had, vmhba5, etc.
Running Dell 760xs and Marvel 2772 which is 32Gb but on a 16Gb Cisco switch.
Thanks in advance for any ideas we may want to try or look at.