You can override one or more of the policy defaults through the administrative data utility (IXCMIAPU), described in Administrative data utility, through the IXCARM macro, or through the exits.

For example, your installation might want to define a policy to group together elements (such as CICS® and DB2®) that are related or perform interdependent processing and, therefore, must run on the same system. These groups are referred to as restart groups.

To determine whether you need to override any policy defaults, you must decide how you want to manage automatic restarts and whether the defaults satisfy those goals. Use the following table and the considerations that follow. The table provides a list of the automatic restart management parameters of IXCMIAPU, their default values (which you can override in the policy), and the IXCARM macro parameters that can override some of the defaults.