Each of these policies resides in a couple data set, which you need to format and define to MVS™. The different types of policies can all reside in the same couple data set, or they can reside in separate couple data sets, either on the same volume or on different volumes. To make a policy active on an MVS system, you must define the policy and activate it.

IBM® provides a couple data set format utility, IXCL1DSU in SYS1.MIGLIB, which you can use to format the couple data sets. Sample JCL to invoke this utility and an explanation of the information you need to specify when formatting a couple data set is included in Format utility for couple data sets. Planning the couple data sets includes an explanation of the format utility and a discussion of what you need to consider when formatting a couple data set. (The couple data set for WLM policy data can also be formatted interactively using the administrative application. See z/OS MVS Planning: Workload Management.)