Viewing Multipath I/O Status - Novell LINUX ENTERPRISE SERVER 10 SP2 - STORAGE ADMINISTRATION GUIDE 05-15-2009 Administration Manual

tail -33 /var/log/messages
5 Use a text editor to add a new alias definition for the device in the
such as .
oradata3
6 Create a partition table for the device by entering
fdisk /dev/dm-8
7 Add a link for the new partition by entering
/dev/dm-*
/sbin/kpartx -a -p -part /dev/dm-8
8 Verify that the link was created by entering
ls -lrt /dev/dm-*
9 Create a filesystem and label for the new partition by entering
mke2fs -j /dev/dm-9
tune2fs -L oradata3 /dev/dm-9
10 Restart DM-Multipath to let it read the aliases by entering
/etc/init.d/multipathd restart
11 Verify that the device is recognized by
multipath -ll
12 Use a text editor to add a mount entry in the
At this point, the alias you created in
Add the mount entry the
reboot to
LABEL=oradata3
13 Create a directory to use as the mount point, then mount the device by entering
md /oradata3
mount /oradata3

5.12 Viewing Multipath I/O Status

Querying the multipath I/O status outputs the current status of the multipath maps.
The option displays the current path status as of the last time that the path checker
multipath -l
was run. It does not run the path checker.
The option runs the path checker, updates the path information, then displays the
multipath -ll
current status information. This option always the displays the latest information about the path
status.
1 At a terminal console prompt, enter
multipath -ll
This displays information for each multipathed device. For example:
3600601607cf30e00184589a37a31d911
[size=127 GB][features="0"][hwhandler="1 emc"]
multipathd
/etc/fstab
Step 5 is not yet in the
path, then change the entry before the next time you
/dev/dm-9
/etc/multipath.conf
by entering
file.
/dev/disk/by-label
Managing Multipath I/O for Devices
file,
directory.
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