Configuring The Driver; System Driver Parameter Max_Scsi_Luns For Red Hat El 2.1 Kernels - HP StorageWorks A6826A Installation Manual

Pci-x host bus adapter for itanium linux systems

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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.

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.

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:

Add the following line to each of the kernel images listed in the elilo.conf file:

append="max_scsi_luns=128"

Reboot the system.

Installing the Linux driver

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