Enabling And Starting Multipath I/O Services - Novell LINUX ENTERPRISE SERVER 10 SP3 - STORAGE ADMINISTRATION GUIDE 2-23-2010 Administration Manual

defaults {
multipath_tool
udev_dir
polling_interval 10
default_selector
default_path_grouping_policy
default_getuid "/sbin/scsi_id -g -u -s /block/%n"
default_prio_callout
default_features
rr_min_io
failback
NOTE: In the
default_getuid
above example instead of the sample path of
usr/share/doc/packages/multipath-tools/multipath.conf.synthetic
default and annotated sample files).
Applying Changes Made to the /etc/multipath.conf File
Changes to the
/etc/multipath.conf
you make changes, save and close the file, then do the following to apply the changes:
1 Stop the
multipathd
2 Clear old multipath bindings by entering
/sbin/multipath -F
3 Create new multipath bindings by entering
/sbin/multipath -v2 -l
4 Start the
multipathd
5 Run to re-create the INITRD on your system, then reboot in order for the changes to
mkinitrd
take effect.

5.5 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
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
2 Enter
/etc/init.d/boot.multipath start
/etc/init.d/multipathd start
"/sbin/multipath -v0"
/dev
"round-robin 0"
failover
"/bin/true"
"0"
100
immediate
command line, use the path
/lib/udev/scsi_id
file cannot take effect when
service.
service.
root
root
/sbin/scsi_id
that is found in the sample file
multipathd
user or equivalent.
user or equivalent.
Managing Multipath I/O for Devices
as shown in the
/
file (and in the
is running. After
59