z/OS MVS Programming: Sysplex Services Guide
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Preference List Order Enforced

z/OS MVS Programming: Sysplex Services Guide
SA23-1400-00

If the active CFRM policy specifies ENFORCEORDER(YES), the system will not reorder the preference list based on how well the various coupling facilities meet the structure's allocation requirements. Specifically, the IXLCONN CFLEVEL specification will not be honored, which could result in the structure being allocated in a down-level coupling facility. If IXLCONN CONNECTIVITY=BESTGLOBAL has been specified, that parameter too will not be honored because this parameter, by definition, specifies that the system is to use the coupling facility allocation algorithm. However, if applicable, the system will honor the following requests:
  • IXLCONN CONNECTIVITY=SYSPLEX, which specifies that the coupling facility be connected to all systems in the sysplex.
  • IXLREBLD LOCATION=OTHER, which specifies that the structure is to be rebuilt in a coupling facility other than the one in which it was originally allocated.
  • IXLCONN MINCFLEVEL=mincflevel, which specifies that the structure is required to be allocated in a coupling facility that supports at least the indicated minimum CFLEVEL.

Note that if the preference list order is enforced, the exclusion list of structures is not applicable because EXCLLIST is mutually exclusive with ENFORCEORDER(YES).

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