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5 – Red Hat Linux Driver Installation System Driver Parameter max_scsi_luns

3.Type the following command to build the RAMDISK image that contains the qla4000.o module:

#mkinitrd -f <RAMDISK image file name> <kernel version>

For example:

#mkinitrd -f /boot/newinitrd-image.img 2.4.7-10

#mkinitrd -f /boot/newinitrd-image.img 2.4.7-10smp

NOTE: To obtain your kernel version before using the above command, type:

#uname -r

4.Configure the boot loader with the new RAMDISK image. Perform the following steps for LILO:

a.Add the following line to one of the kernel entry sections in the /etc/lilo.conf file to use the RAMDISK image:

initrd=/boot/newinitrd-image.img

b. Type the following command:

#lilo

c. Reboot the system.

Perform the following steps for GRUB:

a.Add the following line to one of the kernel entry sections in the /etc/grub.conf file to use the RAMDISK image:

initrd /newinitrd-image.img

b. Reboot the system.

5.4

System Driver Parameter max_scsi_luns

Support for multiple LUNs can be configured in one of three ways. Currently, the maximum number of LUNs that can be scanned for each device is 128.

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, type the following 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:

option scsi_mod max_scsi_luns=128

NOTE: If the SCSI Mid-Layer was loaded using the RAMDISK (standard installation), the rebuild the RAMDISK (see section 5.3.2.4).

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Q-Logic 4000 SERIES manual System Driver Parameter maxscsiluns, For example

4000 SERIES specifications

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