3.1.2 Matrix Server Administration Guide

Chapter 5: Configure the SAN 69

Set the Timeout Value

The default timeout period for PSD devices is 30 seconds. If you need to

modify this value for a particular PSD device, use the following

command. value is in milliseconds; however, the smallest unit is 10

milliseconds. A value of zero disables timeouts.

# mxmpio timeout value [PSD-device]

Other MPIO Support

Enable the MPIO Failover Feature on QLogic Drivers

QLogic device drivers have an MPIO failover feature. To use this feature,

you will need to enable it in the /etc/opt/polyserve/fc_pcitable file and then

reboot the server.

Format of the fc_pcitable File

The /etc/opt/polyserve/fc_pcitable file contains entries only for the drivers

installed on your system. By default, the entries in the file are commented

out, as indicated by the comment character (#). The file is used only if you

add a new entry to the file or modify a default entry (by removing the

comment character and then changing the appropriate values).

Each line in the file contains six fields, as shown in the following example

for the default qla2x00 driver:

0x1077 0x2200 qla2x00 scsi "" QLogic 2200 Adapter

The fields contain the following information:

•Vendor ID.

• Device ID.

• Driver name. Do not include .o in the name.

• Path. If the path begins with “/”, it is considered to be an absolute

path. Otherwise, it is considered to be relative to the

/opt/polyserve/lib/modules/current directory.