Dell QLA2200 Installationsanleitung PDF herunterladen (Seite 43)

Performance Enhancements for the QLogic Linux Driver

2-31

Installing and Configuring the HBA and Driver

options qla2300 ql2xmaxqdepth=64

options qla2300 ql2xopts=scsi-qla0-adapter-port=210000e08b036ff0;scsi-qla0-tgt-

000-di-00-node=50060482c33ef40f;scsi-qla0-tgt-000-di-00-port=50060482c33ef40f;sc

si-qla0-tgt-001-di-00-node=50060482c33ef41f;scsi-qla0-tgt-001-di-00-port=5006048

2c33ef41f;scsi-qla1-adapter-port=210000e08b01ae84;scsi-qla1-tgt-000-di-00-node=

50060482c33ef40f;scsi-qla1-tgt-000-di-00-port=50060482c33ef40f;scsi-qla1-tgt-001

-di-00-node=50060482c33ef41f;scsi-qla1-tgt-001-di-00-port=50060482c33ef41f;

After the modification to /etc/modules.conf has been made, a

new ramdisk needs to be created and the host rebooted.

To create a new ramdisk, run the

mkinitrd command:

• For Red Hat distributions use:

cd /boot

mkinitrd –v initrd-

.img

where

is the currently running v2.4.x kernel version.

• For SuSE distributions use:

cd /boot

mkinitrd –k vmlinuz-

–i initrd-

where

is the currently running v2.4.x kernel version.

2. The execution throttle in the NVRAM should be set to the

maximum of 256.

• If you are using the EMC-approved QLogic BIOS/NVRAM,

then the execution throttle will be defaulted to 256.

• If you are using the QLogic default BIOS/NVRAM, then the

default for this parameter is 16. In this case, you will need to:

– Reboot the host.

–Press

<CTRL> Q when prompted.

– Manually increase the execution throttle parameter from 16

to 256 in the NVRAM settings for each HBA in the system.

QLogic_Linux.book Page 31 Monday, November 1, 2004 2:15 PM

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Dell QLA2200 Installationsanleitung Seite 43