The Linux Multipath(8) Command - Novell LINUX ENTERPRISE SERVER 10 SP2 - STORAGE ADMINISTRATION GUIDE 05-15-2009 Administration Manual

To verify that
1 Ensure that the
prompt:
rpm -q mdadm
If it is installed, the response repeats the package name and provides the version information.
For example:
mdadm-2.6-0.11
If it is not installed, the response reads:
package mdadm is not installed
For information about modifying the
Multipath Devices," on page

5.3.4 The Linux multipath(8) Command

Use the Linux
General syntax for the
multipath [-v verbosity] [-d] [-h|-l|-ll|-f|-F] [-p failover | multibus |
group_by_serial | group_by_prio| group_by_node_name ]
General Examples
Configure multipath devices:
multipath
Configure a specific multipath device:
multipath devicename
Replace devicename with the device node name such as
$DEVNAME variable), or in the major:minor format.
Selectively suppress a multipath map, and its device-mapped partitions:
multipath -f
Display potential multipath devices, but do not create any devices and do not update device maps
(dry run):
multipath -d
Configure multipath devices and display multipath map information:
multipath -v2 <device>
multipath -v3
The -v2 option in multipath -v2 -d shows only local disks. Use the -v3 option to show the full path
list. For example:
multipath -v3 -d
Display the status of all multipath devices, or a specified multipath device:
52 SLES 10 SP2: Storage Administration Guide
is installed:
mdadm
package is installed by entering the following at a terminal console
mdadm
/etc/lvm/lvm.conf
46.
command to configure and manage multipathed devices.
multipath(8)
command:
multipath(8)
file, see Section 5.2.3, "Using LVM2 on
(as shown by udev in the
/dev/sdb