Working With System Image Definitions › Define Resource Relationships

Define Resource Relationships

The resources monitored by some products can have relationships. When you have defined those resources in a system image, you can specify the relationships between them. For each resource, you can specify two different relationships from it to other resources.

The region uses the relationship information during automated system startup and shutdown to determine the order in which to start or stop the defined resources.

You can define relationships between different types of resources in a system. The relationships between resources can be different for each system image definition held in the knowledge base.

A relationship consists of two parties: parent and child.

During automated operation, a parent must be active before dependent resources (its children) can be started. A child cannot be started automatically unless all its parents are active.

Similarly, a parent cannot be stopped automatically unless all its children are inactive.

You can use the GRT command to display resource relationships from the status monitor, the graphical monitor, and the System Image List.

To relate a resource to other resources

1. Enter /RADMIN.R at the prompt.

   The Resource Definition panel appears.

2. Enter S next to the resource class.

   The resource list appears.

3. Enter R next to the resource that you want to relate.

   The Existing Relationships List displays any relationships already defined for the resource.

4. Press F11 (Relate).

   A selection list of the resource classes appears.

5. Select the class of resource to which you want the selected resource to relate.

   A list of all resources of that class in the system appears.

6. Enter C or P next to a resource to define it as a child or parent.

   The updated list of resource relationships appears.

7. Press F3 (Exit).

   The Existing Relationships List appears.

Note: You can enter R next to a resource to display its other relationships. If you want to break a relationship with a resource, use the Unlink action codes.