HP Serviceguard Parameters for Configuring Generic Resources, Configuring a Generic Resource

Parameters for Configuring Generic Resources

Serviceguard provides the following parameters for configuring generic resources. Configure each of these parameters in the package configuration file for each resource the package will be dependent on.

•generic_resource_name: defines the logical name used to identify a generic resource in a package.

•generic_resource_evaluation_type: defines when the status of a generic resource is evaluated. This can be set to during_package_start or before_package_start. If not specified, default during_package_start is considered.

◦during_package_start means the status of generic resources are evaluated during the course of start of the package.

◦before_package_start means resource monitoring must be started before the package start and all the configured resources have to be UP on a given node for the package to be started on that node.

•generic_resource_up_criteria: defines a criterion to determine the 'up' condition for a generic resource. It also determines whether a generic resource is a simple resource or an extended resource. This parameter requires an operator and a value. The operators ==, !=, >, <, >=, and <= are allowed. Values must be positive integer values ranging from 1 to 2147483647.

The following is an example of how to configure simple and extended resources.

Simple generic resource:

generic_resource_name	sfm_disk
generic_resource_evaluation_type	before_package_start
Extended generic resource:
generic_resource_name	cpu_lan
generic_resource_evaluation_type	during_package_start
generic_resource_up_criteria	<50

For more information on the generic resource parameters, see “Package Parameter Explanations” (page 233).

Configuring a Generic Resource

This section describes the step-by-step procedure to configure generic resources. You can also configure generic resources from the Serviceguard Manager. See the online help for instructions on how to configure from Serviceguard Manager.

1.Create a package configuration file that contains the generic resource module: cmmakepkg $SGCONF/pkg1/pkg1.conf

Package template is created.

This file must be edited before it can be used.

NOTE: To generate a configuration file adding the generic resource module to an existing package (enter the command all on one line):

cmmakepkg -i $SGCONF/pkg1/pkg1.conf -m sg/generic_resource

2.Edit the package configuration file and specify the generic resource parameters (as shown in the snippet):

service_name	sfm_disk_monitor
service_cmd	/etc/cmcluster/pkg1/sample_generic_resource_disk_monitor.sh
service_halt_timeout	10
generic_resource_name	sfm_disk
generic_resource_evaluation_type	during_package_start

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