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8–Configuring FCoE in a Linux Environment
Configuring Driver Parameters Using modprobe
8-6
FE0254601-00 A
Configuring Driver Parameters Using modprobe
The modprobe Linux utility intelligently adds or removes a module from the Linux 
kernel, and is available with RHEL 5. Adapter driver parameter modifications that 
you make with modprobe require that you either reload the driver (nonpersistent 
change), or reboot the server (persistent change). 
Reloading the QLogic FCoE driver (qla2xxx) for nonpersistent changes does not 
interrupt the adapter’s NIC function (qlge). Neither does reloading the QLogic NIC 
driver interrupt the FCoE function. Use modprobe to make nonpersistent changes 
only if the driver parameter cannot be changed using any other method.
Making Nonpersistent Changes Using modprobe
Nonpersistent changes are not preserved across server reboots. To make 
nonpersistent changes to adapter driver parameters using modprobe:
1.
Unload the QLogic FCoE driver module. For example:
#modprobe –r qla2xxx
Enable Fibre Channel 
Tape Support
Enables or disables FCP-2 
recovery. Disable this parame-
ter if the Fibre Channel 
adapter is connected to a stor-
age subsystem. Most storage 
subsystems do not support 
sending I/O from the same 
Fibre Channel adapter to both 
a storage subsystem and a 
tape device.
1
0—Disabled
1—Enabled
Fast!
UTIL, 
QConverge-
Console GUI, 
or QConverge-
Console CLI
Enable LIP Reset
Type of loop initialization pro-
cess (LIP) reset to use when 
the operating system initiates 
a bus reset routine. Enabling 
this parameter initiates a 
global LIP reset to clear the 
target device reservations. 
Disabling this parameter initi-
ates a global LIP reset with full 
log in.
0
0—Disabled
1—Enabled
QConverge-
Console GUI or 
QConverge-
Console CLI
Table 8-1. FCoE Driver Parameters for Linux
Parameter
Description
Default 
Range
Configuration 
Method