Working With System Image Definitions › Logical Resources

Logical Resources

Note: This section applies only to CA NetMaster NA, CA SOLVE:Operations Automation, and CA SOLVE:Operations Automation for CICS.

The function of some resources is purely to elicit some sort of activity from another resource (for example, starting or stopping other resources). Other resources might be logical representations of groups of resources. Define these types of resources as the LOGICAL resource type.

Note: The name of a logical resource must contain alphanumeric, @, #, $, ., :, -, (, and ) characters only. It must not be a number.

Logical resources respond to the actions of starting, stopping, and forced stopping differently from the other types of resources. Logical resources respond to these actions as follows:

• If no command or process exists for the action, the actual state of the logical resource is set to the expected result of the action. A starting action results in an ACTIVE actual state; a stopping action results in an INACTIVE actual state.
• If a command exists and no timeout processing is specified, the region issues the command and then immediately sets the actual state of the logical resource to the value of the desired state.
• If a command exists and timeout processing is specified, the timeout settings determine the final status of the resource. See Specifying Messages in a Resource Definition in this chapter for information about how to specify timeout behavior.
• If a process exists, the region acts the same way as for other resources (that is, the region responds according to the process return code).