Red Hat ENTERPRISE LINUX 5 - DEPLOYMENT Deployment Manual page 590

Chapter 41. General Parameters and Modules
Hardware
IBM ServeRAID
LSI Logic MegaRAID Mailbox
Driver
Emulex LightPulse Fibre
Channel SCSI driver
564
Module
ips.ko
megaraid_mbox.ko
lpfc.ko
Parameters
global_tag_depth:<int>
— Global tag depth for every
target on every bus
seltime:<int> —
Selection Timeout
(0/256ms,1/128ms,2/64ms,3/32ms)
unconf_disks — Set to
expose unconfigured disks to
kernel (default=0)
busy_wait — Max wait for
mailbox in microseconds if busy
(default=10)
max_sectors — Maximum
number of sectors per IO
command (default=128)
cmd_per_lun — Maximum
number of commands per
logical unit (default=64)
fast_load — Faster loading
of the driver, skips physical
devices! (default=0)
debug_level — Debug level
for driver (default=0)
lpfc_poll — FCP ring polling
mode control: 0 - none, 1 - poll
with interrupts enabled 3 - poll
and disable FCP ring interrupts
lpfc_log_verbose —
Verbose logging bit-mask
lpfc_lun_queue_depth —
Max number of FCP commands
we can queue to a specific LUN
lpfc_hba_queue_depth —
Max number of FCP commands
we can queue to a lpfc HBA
lpfc_scan_down — Start
scanning for devices from
highest ALPA to lowest