Add options lpfc lpfc_max_luns=2048 to /etc/modprobe.d/lpfc.conf, rebuild initramfs and reboot: Raw # cat etc/modprobe.d/lpfc.conf options lpfc_nodev_tmo=10 options lpfc_lun_queue_depth=32 options lpfc lpfc_max_luns=2048 <--- # cat /sys/class/scsi_host/host7/lpfc_max_luns 255 ...