Novell LINUX ENTERPRISE SERVER 10 SP2 - STORAGE ADMINISTRATION GUIDE 05-15-2009 Administration Manual page 48

STK OPENstorage DS280
Sun* StorEdge 3510
Sun T4
In general, most other storage arrays should work. When storage arrays are automatically detected,
the default settings for multipathing apply. If you want non-default settings, you must manually
create and configure the
and Configuring the /etc/multipath.conf File," on page
Hardware that is not automatically detected requires an appropriate entry for configuration in the
section of the
DEVICES
configure the configuration file. For information, see
etc/multipath.conf File," on page
Consider the following caveats:
Not all of the storage arrays that are automatically detected have been tested on SUSE Linux
Enterprise Server. For information, see
page 48.
Some storage arrays might require specific hardware handlers. A hardware handler is a kernel
module that performs hardware-specific actions when switching path groups and dealing with
I/O errors. For information, see
page 48.
After you modify the
INITRD on your system, then reboot in order for the changes to take effect.
Tested Storage Arrays for Multipathing Support
The following storage arrays have been tested with SUSE Linux Enterprise Server:
EMC
Hitachi
Hewlett-Packard/Compaq
IBM
NetApp
SGI
Most other vendors' storage arrays should also work. Consult your vendor's documentation for
guidance. For a list of the default storage arrays recognized by the
"Storage ArraysThat Are Automatically Detected for Multipathing" on page
Storage Arrays that Require Specific Hardware Handlers
Storage arrays that require special commands on failover from one path to the other or that require
special nonstandard error handling might require more extensive support. Therefore, the Device
Mapper Multipath service has hooks for hardware handlers. For example, one such handler for the
EMC CLARiiON CX family of arrays is already provided.
IMPORTANT: Consult the hardware vendor's documentation to determine if its hardware handler
must be installed for Device Mapper Multipath.
48 SLES 10 SP2: Storage Administration Guide
/etc/multipath.conf
/etc/multipath.conf
55.
"Tested Storage Arrays for Multipathing Support" on
"Storage Arrays that Require Specific Hardware Handlers" on
/etc/multipath.conf
file. For information, see
55.
file. In this case, you must manually create and
Section 5.4.5, "Creating and Configuring the /
file, you must run
mkinitrd
multipath-tools
Section 5.4.5, "Creating
to re-create the
package, see
47.