Managing Serviceguard 13th Edition, February 2007

Configuring Packages and Their Services

Creating the Package Configuration

Chapter 6274

The only role in the package configuration file is that of

PACKAGE_ADMIN over the one configured package. Cluster-wide

roles are defined in the cluster configuration file.

There must be no conflict in roles. If there is, configuration will fail

and you will get a message. It is a good idea, therefore, to look at the

cluster configuration file (use the cmgetconf command) before

creating any roles in the package’s file.

If a role is configured in the cluster, do not specify a role for the same

username/hostnode in the package configuration.

Data about Access Control Policies in the package configuration files

and the cluster configuration file are later combined in the binary

cluster configuration file.

See “Access Roles” on page 192 for more information.

• Simple package-to-package dependencies are a new feature in

Serviceguard A.11.17. As of Serviceguard A.11.17, package

dependencies are only supported for use by applications specified by

Hewlett-Packard, for example the VERITAS Cluster File System (on

systems that support it). In that case the dependency ensures that

the failover application package will not start on a node unless the

CFS packages are already running on that node.

If you have CFS installed, you can add a dependency to your failover

package configuration. There are three attributes; specify them in

this order:

— DEPENDENCY_NAME. Enter a unique name for your dependency.

— DEPENDENCY_CONDITION. The only condition supported in this

release is pkg_name=UP. For a failover package that uses CFS

this is: SG-CFS-pkg = UP

— DEPENDENCY_LOCATION. For Serviceguard A.11.17, the only

location supported is SAME_NODE.

Adding or Removing Packages on a Running Cluster

You can add or remove packages while the cluster is running, subject to

the value of MAX_CONFIGURED_PACKAGES in the cluster configuration file.

To add or remove packages online, refer to Chapter 7, “Cluster and

Package Maintenance,” on page 295.