z/OS MVS Setting Up a Sysplex
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Reconciling CFRM policy data

z/OS MVS Setting Up a Sysplex
SA23-1399-00

Once a sysplex has gained ownership of a coupling facility, CFRM continues its initialization by reconciling the data being maintained about the current coupling facility environment and, if necessary, by cleaning up the dump space in the coupling facility.
  • Reconciling the data

    The system maintains data about use of coupling facility resources in both the active policy and in the coupling facility itself. The coupling facility data is assumed to be more accurate. The system performs the reconciliation process for each coupling facility for which the sysplex has gained ownership. The process consists of comparing data about use of the coupling facility resources from the coupling facility with the data in the active policy. The reconciliation actions taken by CFRM might include deallocating structures that are not persistent and have no persistent connections. CFRM also checks that all persistent structures are listed in the active policy, and must determine how to handle structures or connections remaining in the coupling facility but not in the active policy. The operator might be required to request the deletion of these structures, or CFRM might reconstruct the active policy by adding the structures or connections.

  • Cleaning up the dump space

    If there were dumps in progress at the time of transition to a new active policy, the system dumps all captured data to a dump data set.

    If the operator had issued a CHNGDUMP,STRLIST command to initiate one or more new structure dumps, the dump contains information for each structure listed on the STRLIST parameter.

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