Adding Multipathd To The Boot Sequence; Yast; Command Line; Enabling And Starting Multipath I/O Services - Novell LINUX ENTERPRISE SERVER 10 - STORAGE ADMINISTRATION GUIDE 7-2007 Administration Manual

To avoid scanning and detection problems for multipathed devices:
1 In a terminal console, log in as the root user.
2 Open the /etc/mdadm.conf file in a text editor, then modify the Devices variable to scan
for devices in the /dev/disk/by-id directory, as follows:
DEVICE /dev/disk/by-id/*
After you start multipath I/O services, the paths are listed under /dev/disk/by-id as these
names are persistent. They are identical to their non-multipathed names.

5.5 Adding multipathd to the Boot Sequence

Use either of the methods in this section to add multipath I/O services (multipathd) to the boot
sequence.
Section 5.5.1, "YaST," on page 49
Section 5.5.2, "Command Line," on page 49

5.5.1 YaST

1 In YaST, click System > System Services (Runlevel) > Simple Mode.
2 Select multipathd, then click Enable.
3 Click OK to acknowledge the service startup message.
4 Click Finish, then click Yes.
The changes do not take affect until the server is restarted.

5.5.2 Command Line

1 Open a terminal console, then log in as the root user or equivalent.
2 At the terminal console prompt, enter
insserv boot.multipath multipathd

5.6 Enabling and Starting Multipath I/O Services

To start multipath services and enable them to start at reboot:
1 Open a terminal console, then log in as the root user or equivalent.
2 At the terminal console prompt, enter
chkconfig multipathd on
chkconfig boot.multipath on
If the boot.multipath service does not start automatically on system boot, do the following:
1 Open a terminal console, then log in as the root user or equivalent.
2 Enter
/etc/init.d/boot.multipath start
/etc/init.d/multipathd start
Managing Multipath I/O for Devices 49