HP EVA Cluster Extension Software Administrator Guide (5697-2445, July 2013)

3 User configuration file and EVA Cluster Extension objects
Objects (also called properties in this document) define the disk array environment and
failover/failback behavior. You can customize EVA Cluster Extension objects in the user
configuration file or in the cluster software.
User configuration file
For the CLI implementation of EVA Cluster Extension, the user configuration file UCF.cfg is used
to configure application service-specific information. UCF.cfg describes the dependencies between
application services and EVA Continuous Access DR groups in one file for all application services
in the cluster.
A UCF.cfg file is available in the EVA Cluster Extension sample directory in the
%ProgramFiles%\Hewlett-Packard\Cluster Extension EVA\sample location. This
file can be copied and modified to suit a specific configuration.
After the user configuration file has been created, it must be copied to the /conf directory on all
cluster nodes. The /conf directory is located at %ProgramFiles%\Hewlett-Packard\Cluster
Extension EVA.
For more information, see “Sample configuration file” (page 57) and Creating and configuring
the user configuration file (page 69)
MSCS
EVA Cluster Extension integration with MSCS does not require a user configuration file when the
standard environment for EVA Cluster Extension is used. The EVA Cluster Extension objects that
are integrated with MSCS are can be configured as resource private properties in the cluster
software. See Configuring EVA Cluster Extension for Windows (page 17) for more information.
File structure
The configuration file consists of a COMMON section and an APPLICATION section. These sections
are distinguished by control tags. EVA Cluster Extension uses the following objects as control tags:
COMMON
APPLICATION
Objects have one of the following formats:
A definition of an object; for example, COMMON or APPLICATIONtag
A number; for example, a timeout valueinteger
A name, which can include alphabetic and numeric characters and underscores; for example, an
application startup value
string
A list of space-separated strings, for example, a list of host names (lists of numbers are stored as lists
of strings)
list
Text that is a comment starts with the pound (#) symbol and continues until the end of the line.
Comments can start on a new line or be part of a line specifying an object.
Specifying object values
You do not need to change the default settings unless you want to change the degree of protection
for your DR group members. If you change an object, you may need to change additional objects
as well. For example, if you change the FailsafeMode object to enable, you might need to change
the FailsafeModeOverride object.
48 User configuration file and EVA Cluster Extension objects