HP 3PAR SUSE Linux Enterprise Implementation Guide

6. Press Alt-S to save your changes.
7. If you need to configure more boot devices or another adapter choose Return to Brocade
Config Menu, otherwise choose Exit Brocade Config Menu.
Configuring the Brocade HBA using the BCU Utility
This section describes how to configure the Brocade HBA using the BCU utility.
Brocade provides a CLI utility to configure their HBAs. This is also available as a GUI. These tools,
once installed, can be used to configure many HBA and driver parameters.
See the documentation at Brocade for instructions on using the BCU CLI and GUI utilities.
For Brocade FC HBA, the default Path TOV parameter is set to 30 seconds. It is recommended to
change this value to 14 seconds. To change the value of this parameter, it is required to use
Brocade BCU command line utility.
1. This is a per-port setting. List the available ports by issuing the bcu port --list command:
# bcu port --list
-------------------------------------------------------------------------
Port# FN Type PWWN/MAC FC Addr/ Media State Spd
Eth dev
1/0 - fc 10:00:8c:7c:ff:30:41:60 036100 sw Linkup 4G
0 fc 10:00:8c:7c:ff:30:41:60 036100 sw Linkup 4G
1/1 - fc 10:00:8c:7c:ff:30:41:61 036000 sw Linkup 4G
1 fc 10:00:8c:7c:ff:30:41:61 036000 sw Linkup 4G
2. Set the path_tov value for each port by issuing the bcu fcpim --pathtov <pcifn>
<tov> command:
# bcu fcpim --pathtov 1/0 14
path timeout is set to 14
Setting Up Multipathing Software
HP supports the following multipath solutions for SUSE:
• Device-mapper
• Veritas Dynamic Multipathing (DMP)
Setting Up Device-mapper
Device-mapper comes with SUSE Linux Installation CDs and is usually installed during the OS
installation process.
Check for installed Device-mapper packages by issuing rpm -qa|grep device-mapper:
# rpm -qa|grep device-mapper
device-mapper-32bit-1.02.13-6.14
device-mapper-1.02.13-6.14
Multipath tools are not typically installed during the OS installation process. To install multipath
tools from the SUSE Linux Installation CDs, issue the following command:
# rpm -ivh multipath-tools-0.4.7-34.38.x86_64.rpm
30 Configuring a Host with Fibre Channel