When restoring empty clusters, the only processing that takes place is the DEFINE. Therefore, the first time the data set is accessed after the restore, it must be processed in LOAD mode. A dummy record will be inserted and then deleted into any cluster that had a HURBA (High Used Relative Byte Address) greater than zero but had no data records in it. This option is useful primarily in an IMS or CICS environment where the data set must be initially loaded in order to be used.
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