On one box, I had a HBA that would NOT do a fabric login, this is what we had to do to get it to login:
- Unplug the fibre from the HBA
- Cycle the LPAR
- Boot it into SMS
- Attach the fibre to the HBA
- Run a scan for hard disks via SMS (5-Boot options, 1-select boot device, 5-Hard drives, 9-Scan)
Tada… your HBA should light up and log in