ARCIMPRT has been enhanced to recover multicluster non-key-range data sets. It uses the key boundaries to determine which journal records need to be applied to the cluster being recovered.
If you reorganize your control data sets, you should immediately back them up. If you do not, and you attempt to perform a CDS recovery using a CDS backup version created before the CDS was reorganized, the recovery fails with message ARC0466I. Then the following steps must be taken to restore your multicluster non-key-range CDS:
PARM='MCDS,FORCE'
After the recovery, message ARC0467I is issued identifying the cluster that was recovered.