HP StorageWorks XP Cluster Extension Software Administrator Guide (T1656-96035, April 2010)

8 User configuration file and XP Cluster
Extension objects
Objects (also called properties in this document) define the disk array environment and failover/failback
behavior. Information comes directly from the cluster software, indirectly from the disk array through
XP RAID Manager, and from a configuration file created by users. This file describes the dependencies
between application services and XP RAID Manager device groups in one file for all application
services in the cluster.
The user configuration file provides customized and default values for supported parameters. You can
specify all customizable XP Cluster Extension objects in the file, and a copy must exist on all nodes
using XP Cluster Extension. XP Cluster Extension uses the information objects to match current disk
states and configuration parameters and to invoke actions, including preparing disks to be activated
or stopping the application startup.
User configuration file location
The user configuration file is placed in the configuration directory:
UNIX (AIX, Solaris, and Linux)
/etc/opt/hpclx/conf
Windows
%ProgramFiles%\Hewlett-Packard\Cluster Extension XP\conf
For more information, see:
• “Basic configuration example” on page 139
• “Creating and configuring the user configuration file” on page 112
HACMP
The UCF.cfg file is required for IBM HACMP. You must maintain and copy the UCF.cfg file to all
systems running XP Cluster Extension. The UCF.cfg file includes a COMMON section to configure
the XP Cluster Extension environment and an APPLICATION section to configure the application
service-dependent failover/failback behavior. The APPLICATION section is a multitag component;
the APPLICATION tag and application-related objects can appear numerous times in the UCF.cfg.
For more information, see “User configuration file for HACMP” on page 28.
MSCS
XP Cluster Extension integration with MSCS does not require a user configuration file when the standard
environment for XP Cluster Extension is used. The XP Cluster Extension objects that are integrated with
MSCS can be configured as resource-specific properties in the cluster software.
For more information, see “Configuring XP Cluster Extension resources” on page 45.
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