Installation guide

QLogic v7.x and v8.x series driver parameters

Installing and Configuring the Linux Host with the QLogic Driver

◆ MaxRetriesPerIo: defines the total number of retries to perform

before failing the command and returning a

DID_NO_CONNECT

selection timeout to the OS.

◆ qlFailoverNotifyType: defines the type of failover notification

mechanism to use when a failover or failback occurs.

◆ recoveryTime: defines the recovery time in seconds required

before commands may be sent to a target device after a failback is

performed.

◆ failbackTime: defines the delay in seconds before a failback is

performed to ensure that all paths are available.

Setting the parameter

values

The values of the general driver parameters may be modified at the

driver load time. This modification may be performed at the com-

mand line or by adding the parameters to the

/etc/modules.conf

file and including them in the ramdisk.

When attaching to CLARiiON and Symmetrix storage systems, EMC

recommends that the ConfigRequired and ql2xfailover parameters be

set to zero in the /etc/modules.conf file.

1. To load the QLogic driver onto the system with the parameters at

the command line, use:

modprobe qla2300.o extended_error_logging=1

In order for the modular driver to be loaded at boot time with

these parameters set to 0, a separate options line needs to be

added to the

/etc/modules.conf file.

2. Edit the file:

vi /etc/modules.conf

3. Add the options line for the appropriate driver settings.

options qla2300 extended_error_logging=1