Discovering HBA information from RHEL3 and SLES10

If you wish to retrieve information on HBAs on RHEL3 or SLES10 SP1. Basically, here is the path that you are looking for.

RHEL3: /proc/scsi/lpfc/
SLES10 SP1: /sys/class/fc_host/

As for the SLES10 SP2 : /sys/class/scsi_host/

There are bunch of information like HBA model, firmware, speed, port_state and WWN.