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Installing the Linux driver20
e. If your system has a previous version of the qla driver, rename the old binary included in the
original distribution to ensure that it does not interfere with the updated version as follows:
# cd /lib/modules/<kernel_release_version>/kernel/
drivers/addon/qla2300
# mv qla2300.o qla2300_rh.o
After renaming the older driver version, load the new driver using modprobe after updating
the dependency file.
2. To manually unload the qla2x00 driver, enter the following command at the command prompt:
# modprobe –r qla2300
Configuring the driver
The following sections include driver configuration information.
System driver parameter max_scsi_luns for Red Hat EL 2.1 kernels
You can configure support for multiple LUNs on Red Hat EL 2.1 kernel systems in one of the
following ways:
NOTE: If you have multiple HBAs, set max_scsi_luns to the largest number of LUNs supported by
any one of these HBAs.
• To configure multiple LUN support during boot time, enter the following command at the boot
prompt:
boot: linux max_scsi_luns=128
• If the SCSI Mid-Layer is compiled as a module, add the following line to the
/etc/modules.conf file to scan for multiple LUNs at each boot:
options scsi_mod max_scsi_luns=128
• If the SCSI Mid-Layer is not compiled as a module, the boot loader can be configured to scan
for multiple LUNs each time the system boots.
To complete the configuration, perform the following steps:
1. Add the following line to each of the kernel images listed in the elilo.conf file:
append=”max_scsi_luns=128”
2. Reboot the system.