Rebuilding the coupling facility structure

XBM supports system-managed rebuild for coupling facility structures. System-managed rebuild provides for the planned reconfiguration of the coupling facilities that contain the XBM structures. 

Related topic

Adding-XBM-structures-to-the-CFRM-policy

You can use system-managed rebuild if your system meets the following minimum requirements:

  • Coupling facility level 8
  • The CFRM policy set to allow system-managed rebuild
  • An IBM-supported version of IBM OS/390 or z/OS that is active on all systems in the sysplex

If your system does not meet these minimum requirements, ensure that you allocate adequate storage space for each structure for snapshot processing. A structure that is too small can quickly amass data until it fills. If structures fill, snapshot processing might be unsuccessful.

 

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