The following identifies the phases of GZONEMERGE processing and the zones and data sets that SMP/E may require for exclusive or shared use during each phase. For more information about command phases and data set sharing in SMP/E, see Sharing SMP/E data sets.

1. Initialization

   Destination Global zone

   Read without enqueue.

   Originating Global zone

   Read without enqueue.

2. Processing

   Destination Global zone

   Update with exclusive enqueue.

   Destination SMPPTS

   Update with exclusive enqueue.

   Originating Global zone

   Read with shared enqueue.

   Originating SMPPTS

   Read with shared enqueue.

3. Termination

   All resources are freed.