Managing HP Serviceguard for Linux, Seventh Edition, July 2007

Understanding Serviceguard Software Components
Volume Managers for Data Storage
Chapter 3 83
NOTE Do not use the MD configuration parameters in the legacy package
control script for MD multipath. Instead, for multipath only, MD
activation can be done at system boot.
Monitoring Disks
Each package configuration includes information about the disks that
are to be activated by the package at startup. If monitoring is used, the
health of the disks is checked at package startup. The package will fail if
the disks are not available.
When this happens, the package may be restarted on another node. If
auto_run is set to yes, the package will start up on another eligible
node, if it meets all the requirements for startup. If auto_run is set to no,
then the package simply halts without starting up anywhere else.
The process for configuring disk monitoring is described in “Creating a
Disk Monitor Configuration” on page 228.
More Information on LVM
Refer to the section “Creating the Logical Volume Infrastructure” in
Chapter 5 for details about configuring volume groups, logical volumes,
and file systems for use in Serviceguard packages.
Refer to the article, Logical Volume Manager HOWTO on the Linux
Documentation Project page at http://www.tldp.org for a basic
description of Linux LVM.