Managing Multipath I/O - Novell LINUX ENTERPRISE SERVER 11 - STORAGE ADMINISTRATION GUIDE 2-23-2010 Administration Manual

A.7.1 Managing Multipath I/O
The following changes were made to this section:
Location
"Storage Arrays That Are Automatically
Detected for Multipathing" on page 48
Section 7.3.1, "Device Mapper Multipath
Module," on page 50
"Configuring Default Settings for zSeries
in /etc/multipath.conf" on page 59
Section 7.8, "Configuring Multipath I/O
for the Root Device," on page 69
140 SLES 11: Storage Administration Guide
Change
Testing of the IBM zSeries* device with multipathing has
shown that the dev_loss_tmo parameter should be set to 90
seconds, and the fast_io_fail_tmo parameter should be set to
5 seconds. If you are using zSeries devices, you must
manually create and configure the
file to specify the values. For information, see
Default Settings for zSeries in /etc/multipath.conf" on
page 59.
Multipathing is supported for the
Enterprise Server 11 and later.
This section is new.
DM-MP is now available and supported for
in SUSE Linux Enterprise Server 11.
/etc/multipath.conf
"Configuring
/boot device in SUSE Linux
/boot and /root