Hello, as far as I know only some hardware drivers can read these FC and SAS IDs, but these numbers are then never assigned in sysfs to the devices, but are if at all only linked to the HBA devices. Are there specs available how to read the WWN, WWNN and WWPN ids? Thanks, Bernd -- Bernd Schubert Q-Leap Networks GmbH -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html